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Data Train VIII Protocol Rev. 1

1. 4 14 Figure 4 11 Display Messages Binary Format 4 14 Figure 4 12 DT8 Diagnostics Menu 4 15 Figure 4 13 Messages Counts Screen 4 16 Figure 4 14 Show Info Screen 4 18 Figure 4 15 Local Screen 14x west mier he amana uu ua uhuy ee ones 4 20 Figure 4 16 Timers Screen 4 21 Figure 4 17 Flags Screen eus ov Pare aes edie Sh ae ee ees Se HE Neh 4 22 Figure 4 18 Data Monitor Screen 4 23 Figure 5 1 Transposition of Bytes in Transmitted Messages 5 4 Figure 5 2 CSEX Memory Device and Serial Port Communication Selection FIead ers C TD 5 6 Figure 5 3 CSEX Board 214 e out been Lig set pt di Demo bw one re CU A ba 5 7 P2346E Rev Mar 15 iv Alstom Signaling Inc LIST OF FIGURES Figure No Title Page Figure 5 4 CSEX Board Edge 5 8 Figure 5 5 CSEX2 Boat ctu ch haa Sat wr bref bct Wee cde erede 5 11 Figure 5 6 CSEX2 Board Edge 5 12 Figure 5 7 SEXO Board ns ep suya a as miss op RSS um ayau a 5 16 Figure 5 8 CSEX3 Board Edge 5 17 Figure 5 9 CSEX4 Board 5 22 Figure 5 10 CSEX4 Board Edge
2. 3 1 P2346E Rev Mar 15 i Alstom Signaling Inc TABLE OF CONTENTS Topic Page 3 2 2 Modes of Operation 3 2 3 2 2 1 Peer Mode RAP RP AA 3 2 9822 ONG Mode rann a a eL ipu ashpa bt Let re ri ayasa 3 3 3 2 2 3 Master Slave Multi Drop Mode 3 4 3 2 3 DT8 Messages ons bet eie gh Sole es xe Bie meson P EUH ria ml 3 6 3 2 3 1 Message Structure 3 6 B232 Staion AdOressiliQ ceo xx ER EE ASAN Ree eee ee 3 7 o eno KG BAS JS CA AA 3 8 3 2 3 4 Message Types 3 8 3 2 3 5 Description of the xA7 Message Type 3 11 3 2 3 5 1 Subcommand x00 Date Time Update 3 12 3 2 3 5 2 Subcommand x01 Request Date Time Update 3 14 3 2 4 Modes Of Exchange 3 15 3 2 4 1 Typical Peer Mode and Sync Mode Exchange 3 15 3 2 4 2 Typical Master Slave Mode Exchange 3 16 3 2 5 DEC Message Timing 3 19 6 25051 IEITSSOTS FIO pa aa eost A ool pti te ta tad 3 19 3 2 5 2 Message Timing in Master Slave Mode 3 20 3 2 5 3 Message Timing in Peer and Sync Modes 3 21 9 5 Data Handing isak pecs maana AA NG WERE eed AA ah atin 3 22 SECTION 4 Diagnostic and User Interface 4 1 AT In
3. P1 DISPLAY LILILILTEILILILI oog PROT EN Sws CRST Communication 1111 Processor Reset DDDBT TB10 Main Processor FLASH Write 1 2 Enable 2 3 Disable TB9 ASIC Programming Header no jumpers Figure 5 9 CSEX4 Board P2346E Rev Mar 15 5 22 Alstom Signaling Inc Hardware Description and Troubleshooting Guide CSEX4 BOARD 31166 417 XX NORMAL PCB LABEL FUNCTION INDICATION NOTATION J4 USB 1 MAIN USB Main Processor USB Port V SEL ENTA Display Select Button Down for Select and Up for Enter Center Position is OFF B MAC Maintenance Port Selection Front or Back of Board MAIN PT1 RS232 Serial Interface to Main Processor SERIAL COM and Status LEDs MTX MRX MAC Serial Port Transmitting Data Receiving Data CTX CRX Communication Processor Serial Port Transmitting Data Receiving Data 1OK 1INV Serial Port 1 Valid Addressed Message Received Invalid Unknown Address in Received Message 1RSP 1ERR Serial Port 1 Error In Received Message Transmitting Data 2NRM 1NRM Not Used Not Used For Future Use 20K 2INV Serial Port 2 Valid Addressed Message Received Invalid Unknown Address in Received Message 2RSP 2ERR Serial Port 2 Error In Received Message Transmitting Data MAIN DSPY Main Processor 7 Segment Diagnostic Display Network S
4. Port MAIN USB SW7 Channel 1 Configuration e RS422 485 All Off RS232 All On LILULILILILILILT 232 232 SW6 Channel 2 Configuration SW2 V SEL ENT ASelect Enter 5499 485 All Off RS232 All On B MAC F Maintenance Port Selection ma ap d Port PTI RS232 Serial Interface to Main Processor 1 DODDOPOD 000000000 0000000042 O TB1 Communication Processor PROMJet Header no jumpers INI RST JO TB2 Communication Processor PROMJet Connection Points E PROT TB3 Communication Processor Flash PROM Write 1 2 Enabled 2 3 Disabled DISPLAY TP1 Ethernet Controller Power Test Point BATT TB4 Battery Selection 5 59 attery 1 2 Enable 2 3 Disable p Lithium as eL Coin Cell SW4 MRST Main Processor Reset B Di 2032 3V TB5 Main Processor Watchdog Selection m 1 2 Enable Watchdog Reset 2 3 Disable Watchdog Reset TN 49 T DEED RD OE ECC O 5V Test Point Port PTI RS232 Serial Interface to Communication Processor TB6 Main Processor o PROMJet Header no jumpers TB7 Main Processor PROMJet Connection Points COM Test Point Ed 00000000 TB8 ASIC Test 2 J6 Port USB 2 Header no jumpers LILILILILILILIL SW3 SW5 Application 12345578 Configuration Switches
5. This flag enables or disables use of the eight deep indication queue by DT8 This queue is described in Section 3 2 3 1 If this flag is false no buffering of output messages occurs If the flag is true up to eight indication messages are stored if communication fails or changes occur rapidly If the application requests a SEND MAP then protocol clears the output buffer and sends the latest message Table 2 16 DT8 Configuration Settings As Used By Type DT8 Slave DT8 Master DT8 Peer DT8 Sync Configuration Setting Quiet Poll Interval N Y N N Expedite Mode Y N Message Timeout Y Y Y Y Interval RTS to CTS Timer Y Y Hold RTS Timer Y Y Multi Drop Flag Y N N N RTS Invert Flag Y Y CTS Invert Flag Y Y Y Y AE Timeout N N Sync Message Limit Y Y N Y P2346E Rev I Mar 15 2 27 Alstom Signaling Inc CAAPE Package 2 7 2 DT8 Configuration for Non vital Serial over Ethernet Connections When configuring DT8 on the NVSoE connections a number of parameters have no effect Specifically the CTS RTS Invert Flag parameters Hold RTS and RTS to CTS timer parameters CTS flag and Multi drop flag are ignored for virtual serial over TCP connections since these parameters are not applicable in that case Additionally care must be taken when setting polling and timeout intervals on the NVSoE connections to accommodate the expected worst case network propagation delays and transmission times Specifically
6. 2 11 Table 2 7 Indication Contents Parameters 2 12 Table 2 8 Destination and Source Parameters 2 13 Table 2 9 Message Parameters 2 14 Table 2 10 Special Control Parameter 2 15 Table 2 11 Special Message Contents Parameters 2 17 Table 2 12 Special Message Flags 2 17 Table 2 13 Text Message Parameters 2 21 Table 2 14 DT8 Settings 2 24 Table 2 15 DT8 Configuration Settings _ 2 25 Table 2 16 DT8 Configuration Settings As Used By Type 2 27 Table 2 17 Create an LPC File With CAAPE 2 29 Table 3 1 DT8 Modes of Operation 3 1 Table 3 2 Decimal Hexadecimal and Binary Values 3 1 Table 3 3 OTS Messages 3 8 Table 3 4 DT8 Message Types 3 9 Table 3 5 Subcommand x00 Descriptions 3 12 Table 3 6 Special Message Flags Used With xA7 Commands 3 14 Table 3 7 Message Exchange Between Peer Units 3 15 Table 3 8 Master Slave Polling and Message Exchange 3 16 Table 3 9 Other Master
7. 5 23 Figure SIT NVSP Board Sess iei einen eos iqu buatkan Kk ve es wu wasa 5 27 Figure 5 12 NVSP Board Edge 5 28 Figure B 1 CSEX4 NVSP Network Tab B 3 Figure B 2 CSEX4 NVSP NVSoE Tab B 4 Figure B 3 NVSoE Properties Dialog B 5 Figure B 4 Network Port Dialog B 5 Figure B 5 Links Dialog Network Tab B 6 Figure B 6 Remote Connection Data Dialog B 7 P2346E Rev Mar 15 V Alstom Signaling Inc LIST OF TABLES Table No Title Page Table 1 1 DT8 Compatible Supported Platforms 1 4 Table 1 2 Configuration Parameter Settings for DT8 Protocol 1 6 Table 1 3 Common Abbreviations and Glossary 1 7 Table 1 4 Related Publications 1 17 Table 2 1 Serial Network Port Record Descriptions 2 3 Table 2 2 Serial Network MAC TCP Port Record Descriptions 2 5 Table 2 3 Baud Rates Settable Using Baud Rate Control Record 2 7 Table 2 4 Control Definition Parameters 2 9 Table 2 5 Control Contents Parameters 2 10 Table 2 6 Indication Definition Parameters
8. Mar 15 Alstom Signaling Inc P2346E Rev I Mar 15 Alstom Signaling Inc PREFACE NOTICE OF CONFIDENTIAL INFORMATION Information contained herein is confidential and is the property of Alstom Signaling Inc Where furnished with a proposal the recipient shall use it solely to evaluate the proposal Where furnished to a customer it shall be used solely for the purposes of inspection installation or maintenance Where furnished to a supplier it shall be used solely in the performance of the contract The information shall not be used or disclosed by the recipient for any other purposes whatsoever VPI is a registered trademark of Alstom Signaling Inc iVPI is a trademark of Alstom Signaling Inc All other trademarks referenced herein are trademarks of their respective owners FOR QUESTIONS AND INQUIRIES CONTACT CUSTOMER SERVICE Address Alstom Signaling Inc 1025 John Street West Henrietta NY 14586 USA Website www alstomsignalingsolutions com Email websiteinfo alstomsignalingsolutions com Phone 1 800 717 4477 P2346E Rev Mar 15 Alstom Signaling Inc REVISION LOG Release Revision Date January 1998 September 2000 Description of Change Author Checker Approver June 1995 Original Issue Content Updated Content Updated August 2001 November 2001 February 2002 March 201 1 Content Updated Major rewrite of Aug 01 revision to improve organ
9. Non Vital Serial over Ethernet a virtual communications channel via a TCP IP connection single or redundant Abbreviation for Non Vital System Processor the non vital processor board used in the iVPI system The control center for one or more field locations along a railroad A protocol setting that determines its behavior with respect to transmitted and received messages For example Master Slave Mode or Peer Mode In reference to Alstom s CAAPE software package an application specific entity whose value can vary over time depending upon the current state of related variables The use of a check bit appended to each frame of asynchronous data for error checking purposes Abbreviation for Personal Computer Waiting to be processed especially in reference to a change to an indication data parameter resulting in the transmission of an indication message To query a remote station for current information usually used in reference to a communication protocol A portion of a processor board used for the transfer of digital data messages in a serial manner an access point for a device where energy can be applied or withdrawn or where the device can be observed or measured Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Post Processor Program Protocol PROM Queue RAM Real Time Record Definition The act of presenting a message u
10. 0 9 A F In the following figure LSB and MSB refer to the Least Significant and Most Significant Bits of a hexadecimal digit 11 Bit Start Stop Asynchronous Character Start Bit Stop Bit Always SPACE Always MARK 8 Data Bits Parity Bit sr 0 1 2 3 4 5 6 7 p sr NU NN P HEX Digit HEX Digit Least Significant Most Significant Most significant then least significant Figure 5 1 Transposition of Bytes in Transmitted Messages P2346E Rev I Mar 15 5 4 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 2 3 CSEX Board Refer to publication P2086B for details on the original CSEX Board hardware Refer to the online help of the CAAPE software package for a detailed explanation of the generation and compilation of a non vital application for the CSEX hardware platform Table 5 4 describes the memory jumper placement for specific devices CMOS versions of these memory devices are used where available 120 ms or faster Table 5 5 and Figure 5 2 show the serial port communication jumper settings See Figure 5 3 and Figure 5 4 for the location of these jumpers and of the on board LEDs and other essential components Table 5 6 describes the Watchdog jumper settings Table 5 4 CSEX Memory Jumpers Device Capacity Type Header Jumpers U36 U49 8K x 8 2764 EPROM JU1 3 4 7 8 11 12 16K x 8 27128 EPROM 1 2 7 8 11 12 32K x 8 27256 EPROM 1 2 5 6 11 12 64K x 8 27512 EPROM 1 2 5 6 9
11. 1 is 50 with a length of eight bits The message itself contains 128 bits parameters and is located in memory beginning at address 0000 77EC The message contents are shown as a series of 16 hexadecimal bytes eight bits each In this example all 128 bits in the last received control message are false 0 The indication address is also 50 and has a length of eight bits The message itself is 536 bits in length and is located in memory beginning at address 0000 786D The last indication sent is 00 00 00 00 00 00 00 00 10 Refer to Table 3 2 to convert data from hexadecimal to binary In this example no Special Message buffer is defined in the application for station 1 4 3 3 Emulation Menu Choice Optns The Optns menu allows users to view the selected communication port s setup or baud rate g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help g 8m a mimi e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Next Last sgt Msg Diags Reset TWC Vital Diags Baud rate 19 2K 8 Data bits 1 Stop bits No parity Display port options Figure 4 4 Emulation Menu View Port Setup P2346E Rev I Mar 15 4 6 Alstom Signaling Inc Diagnostic and User Interface 4 3 4 Emulation Menu Choice Msg The Msg menu allows users to monitor the message flow between the communication protocol installed on a
12. 18 WORD3BIT2K 19 WORD3BIT3K 20 WORD3BIT4K 21 WORD3BIT5K 22 WORD3BIT6K 23 WORD3BIT7K 24 WORD3BIT8K SPECIAL CONTROL LENGTH 24 USED TO PASS FLAGS BETWEEN THE PROTOCOL AND THE NON VITAL APPLICATION NOTE FLAGS SET BY THE PROTOCOL MUST BE CLEARED BY NON VITAL LOGIC STATEMENT 1 BIT_MAP_IN 2 CHANGE_IN 3 ACK_IN 4 POLL_IN 5 MAP_REQ_IN 6 BIT_MAP_OUT 7 CHANGE_OUT 8 ACK_OUT 9 POLL_OUT 10 MAP_REQ_OUT 11 STATION_ALIVE 12 POLL_ENABLE 13 TEXT_IN 14 TEXT_OUT 15 SEND_MAP 16 PERMZERO 17 SEND TIME REQ 18 TIME REQ IN 19 SEND TIME 20 TIME IN 21 PERMZERO 22 PERMZERO 23 PERMZERO 24 PERMZERO P2346E Rev Mar 15 A 6 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup APPENDIX B Non Vital Ethernet Network Communication Background And Setup B 1 NVSOE NETWORKING The CSEXA non vital processor board in VPI and the NVSP non vital processor board in iVPI are capable of communicating non vital binary data with other devices Several physical interfaces RS 232 RS 422 RS 485 and Ethernet and a number of communication protocols including Alstom DataTrain VIII DT8 Ansaldo Genisys and Modicon Modbus among others are supported In particular each CSEX4 or NVSP board can supp
13. Rev Mar 15 3 15 Alstom Signaling Inc Theory of Operation 3 2 4 2 Typical Master Slave Mode Exchange Table 3 8 shows an exchange between master and slave units with only one slave responding The table is read left to right and then top to bottom The master station polls slave stations 2 3 4 and 5 none of which have yet updated the master with their indication data After sending a complete sequence of bitmap requests xAD to all slave stations which do not answer the master restarts the polling cycle The second time slave station 4 answers with the requested bitmap xAE The master acknowledges xAA this message and continues polling When station 4 is polled again the master updates this station s control buffer with a bitmap xAE Station 4 responds to this message by sending a Change message xAC since by this time a change is pending The Change message indicates that byte 1 has changed to x55 from x11 and byte 4 has changed to xAA from x44 This byte is sent as two split bytes xAO and x0A The master acknowledges xAA this message and continues polling Since station 4 has updated the master with its indication data the next time station 4 is polled and the master sends a Poll message xAB which is a request for information instead of a bitmap Request xAD Table 3 8 Master Slave Polling and Message Exchange Master Slave 2 Slave 3 Slave 4 Slave 5 AD 02 A9 AD 03 A9 AD 04 A9 AD 05 A9 AD 02 A9 AD 03 A9 AD
14. TCP IP connection B 9 Text message linking 2 22 Troubleshooting guide 5 29 V Values binary 3 1 Values decimal 3 1 Values hexadecimal 3 1 Alstom Signaling Inc Need help Contact Customer Service Alstom Signaling Inc 1025 John Street West Henrietta NY 14586 USA 1 800 717 4477 www alstomsignalingsolutions com m MEME J 4 4 4 c c c ALSTOM
15. a device containing one serial communication port settable for synchronous or asynchronous operation Vital A process whose function affects the safety of train operation Contrast with Non vital VPI Abbreviation for Vital Processor Interlocking Alstom s family of Vital and non vital interlocking processors VT100 Terminal A video display device that employs a standard set of instructions ANSI escape sequences for displaying information Watchdog Timer An internal timer usually a hardware device used to detect a possible malfunction of the software and to initiate an automatic restart of the system Word A pair of adjacent bytes P2346E Rev I Mar 15 1 16 Alstom Signaling Inc General Description 1 7 RELATED PUBLICATIONS For further information on the wayside non vital processor components hardware and configuration as well as other available emulations and protocols refer to the Alstom publications listed in Table 1 4 Table 1 4 Related Publications Document No Title VPI Vital Processor Interlocking Control System Operation and P2086B Maintenance Manual Volumes 1 and 2 P2346 Series CenTraCode II Protocol Emulation Manuals P2509 Maintenance Management System MMS User s Manual VPI II Vital Processor Interlocking Il Control System Operation P2511B and Maintenance Manual Volumes 1 through 5 Computer Aided Application Programming Environment CAAPE P2512A Software
16. of the server on the remote unit as well as the Ethernet device on the remote CSEX4 NVSP enet1 enet2 or enet1 enet2 if redundancy is enabled used by the remote NVSoE node it is also required that the remote server have its port set to Type NVSoE so that the correct predetermined ports are used on both ends of the connection If Connection Type is set to Custom then it is required to set Type Manual in the Network Port dialog and manually enter the port s associated with the remote server additionally Type Manual appears to override the Connection Type setting even if it is not set to Custom P2346E Rev I Mar 15 B 8 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup B 2 TCP IP CLIENT SERVER AND PROTOCOL When an NVSoE connection is arranged between two CSEX4 or NVSP boards CAAPE is used to configure one of the boards as a TCP IP server and the other as a TCP IP client When the systems containing the two boards are powered up the board configured as a client will immediately attempt to connect to the server even if there is no request from the higher level protocol e g DT8 Genisys or Modbus In this way a TCP IP client server connection is established that is independent of protocol Consequently the protocol that employs this connection does know or need to know whether it is using the TCP IP client or server end of the connection from the higher level protocol point of view the TCP
17. 04 A9 AE 04 00 11 22 33 44 55 3B 7F A9 AA 04 A9 AD 05 A9 AD 02 A9 AD 03 A9 AE 04 11 22 33 44 AC 04 01 55 55 66 C5 59 A9 04 AO 0A 7A FF A9 AA 04 A9 AD 05 A9 P2346E Rev Mar 15 3 16 Alstom Signaling Inc Theory of Operation Table 3 8 Master Slave Polling and Message Exchange Cont Master Slave 2 Slave 3 Slave 4 Slave 5 AD 02 A9 AD 03 A9 AB 04 A9 AA 04 A9 AD 04 A9 Table 3 9 shows a typical exchange between a master and responsive slave units In this example all slave stations are sent Polls xAB request for information by the master instead of bitmap requests xAD This implies that all stations had previously updated the master with their indication data The master station polls slave stations 2 3 4 and 5 all of which respond with an Acknowledge xAA implying that no changes are pending After the complete sequence the master restarts the polling cycle The second time slave station 4 responds with a bitmap xAE implying that multiple indications more than 5096 changed state since it was last polled The master acknowledges xAA this message and continues polling When station 4 is polled again the master updates this station s control buffer with a bitmap xAE Station 4 responds to this message by sending a Change message xAC since by this time another change is pending The Change message indicates that byte 1 has changed to x55
18. 05 A8 05 A8 OS A8 OS AS 05 A8 OS AS OS AB OS AB OS CC 26 gt S lt AA OB gt T lt AE OB A9 05 AY 05 AY 05 A9 05 AY 05 A9 05 A9 05 AY 05 AY 05 A9 05 AY OS 9 0 5 A9 05 9 05 A9 05 A9 05 AI 05 AI OS 9 05 9 05 AI OS 9 OS 9 OS AI OS gt S lt AA C gt R lt AE OC A9 05 A9 05 AY 05 A9 05 AY 05 AY 05 A9 05 AY 05 AY 05 A9 05 AY 05 A9 0 5 9 05 A9 05 A9 05 AY 05 9 05 AI 05 AY OS A9 OS A9 05 AY OS A9 OS AI OS 47 D gt S lt AA OB gt T lt AE OB AA OS AA 05 AA OS AA OS AA OS AA OS AA OS AA 05 AA OS AA OS AA OS AA O 5 AA 05 AA OS AA 05 AA OS AA OS AA 05 AA OS AA OS AA 05 AA OS AA OS AA OS cap NUM scr Figure 4 18 Data Monitor Screen P2346E Rev Mar 15 4 23 Alstom Signaling Inc Diagnostic and User Interface Data monitor operation is a background task The displayed information can be preempted by other processor operations of a higher priority As a result it cannot be possible to report all code line port message traffic in monitor mode Split bytes CRC checksums and terminator bytes are not shown on this display Table 4 5 provides a description of the choices available in the Monitor Menu Table 4 5 Monitor Menu Choices Option Description Local Toggle the Local Remote serial message flag When in Local mode only local messages are displayed VO Toggle the input output status display Change Toggle the field changes display When on field I O are displayed in order of their occurrence
19. 10 U37 U50 8K x 8 2764 EPROM JU2 3 4 7 8 11 12 16K x 8 27128 EPROM 1 2 7 8 11 12 32K x 8 27256 EPROM 1 2 5 6 11 12 64K x 8 27512 EPROM 1 2 5 6 9 10 Table 5 5 CSEX Serial Port Communication Jumpers RS 422 2 3 4 5 No Connections No Connections RS 423 RS 232 1 2 5 6 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Table 5 6 CSEX Watchdog Jumper Watchdog Enabled Watchdog Disabled JU6 1 2 No Connections P2346E Rev Mar 15 5 5 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Di 23 3 4 3 d Dn 8 Headers JU1 and JU2 Header JU3 Headers JU4 and JU5 Figure 5 2 CSEX Memory Device and Serial Port Communication Selection Headers P2346E Rev Mar 15 5 6 Alstom Signaling Inc Hardware Description and Troubleshooting Guide N3 10000000 N0979 517 DB9 MAINTENAN INTERFACE 5 J COMMUNICATION JUMPERS TO AOC lo COCO oo RESET SWITCH NON TP2 5 Og Ch4 Tx I CPU Running Power Low DTI App Running Ch2 Rx Error Ch2 Invalid Address Ch2 Responding Ch2 Valid Address Ch1 Valid Address Ch1 Rx Error Ch1 Invalid Address Ch1 Responding Ch1 Valid Address TP3 COM een twigs ep I CJ uh In S Zm o NOY4d3 I IN31SAS TP Test Point NOdd3a IN31SAS NV IN31SAS WV IN31SAS sl co Co Co SYSTEM APPLICATION EPROM EPROM JUMPERS JU
20. 15 5 14 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 20 CSEX3 36 Pin P3 Auxiliary Board Communication Selection Switch SW1 Settings Switch Position Function Towards P4 connector DCD B Normal operation Towards P3 connector RXCLK Provides external receive synchronous clock signal e g for ARES protocol Table 5 21 CSEX3 36 Pin P3 Auxiliary Board CSEX vs CSEX2 3 Switch SW2 Settings Switch Position Function Towards P4 connector CSEX2 3 CSEX2 3 compatibility mode normal operation Towards P3 connector CSEX 1 CSEX compatibility mode P2346E Rev Mar 15 5 15 Alstom Signaling Inc Hardware Description and Troubleshooting Guide MAC Port Output Set For Front of Board Channel 2 RS232 RS422 sw2 DC gt ON Rs232 DC BDUBUUUU sw5 RS422 DC gt SW7 ON RS232 HHDH RS422 MAC Port Channel 1 SW 8 Reset RS232 RS422 MAC Port Power amp AUX Brd A1 ALE Line ON SW9 DEDHOHUR 1 8 APP1 APP8 ON SW10 Application Switches DDR 1 8 APP 9 APP 16 Display Display Battery SW11 Enter Select SW1 SW2 lt DCD B lt CSEX2 3 RXCLK gt CSEX1 gt CSEX3 AUX Board 31166 187 01 Application Program FLASH Chips P2 Watchdog amp AUX Brd Clock 2 n 00 W s8 1 mmu H7 JP3 7 TO 8 BATTERY IN USE JP3 6 TO 8 BATTERY IN STORAGE CSEX3 Board w AUX 31166 175 02 Figure 5 7 CSEX3
21. DC Display DC type events not used in electronic code applications Other Display communication error messages and other miscellaneous message types Ansi Select ANSI mode in which the unit sends control codes to format the screen so that data appears in organized order These codes cannot be used if a printer or other devices is connected to the port Scroll Start or stop updating the screen so that message traffic can be monitored and displayed in real time Port Select the number of the port or ports from 1 to 5 to monitor and display Activity on multiple ports can be observed at the same time EXIT Exit the data monitor Note Ctrl E should not be used to exit from the Data Monitor Screen P2346E Rev lI Mar 15 4 24 Alstom Signaling Inc Diagnostic and User Interface Table 4 6 lists the Data Monitor Status Indicators displayed at the top of the screen Table 4 6 Data Monitor Status Indicators Field Description Logging On off status of the data monitor this is normally turned on Scroll On off status of the display turn Scroll on for real time display of message traffic DC Events On off status of the display of DC data this is normally turned off Serial Serial message type remote or local this is normally set to remote Messages Field Field changes display is turned on or off this is normally turned off Changes Other Other messages display is turned on or off thi
22. Inc Theory of Operation Table 3 4 describes these messages in detail Table 3 4 DT8 Message Types Cmd Byte Message Type Message Description Message Format xA7 Subcommand Transports Subcommands see xA7 st Subcommand c Section 3 2 3 5 For example c xA9 A7 02 01 C1 Ch A9 XAA st xA9 xA8 Acknowledge Informs the remote unit that a message was received without error and was accepted For example AA 01 A9 xAB Request for information any xAB st xA9 parameter changes from the remote unit For example AB 03 A9 Sends changed indication or xAC st b b b b c control parameters to the remote C XA9 xA8 unit Eight adjacent parameters are grouped and sent as a full byte The message body contains data pairs byte number b and byte value b for only those bytes that have changed state since the last message was sent For example AC 01 04 0C 1B 82 c cy A9 If more than 50 of all indication or control parameters change state DT8 sends a bitmap instead of a Change message xAD Bitmap Requests that a bitmap be xAD st xA9 transmitted by a remote slave unit For example AD 03 A9 P2346E Rev Mar 15 3 9 Alstom Signaling Inc Theory of Operation Table 3 4 DT8 Message Types Cont Cmd Byte Message Type Message Description Message Format xAE Bitmap Informs the remote unit of all indication or control par
23. Protocol VDP diagnostics menu described in Alstom publication P2346W Exit Return to the Main Menu P2346E Rev I Mar 15 4 3 Alstom Signaling Inc Diagnostic and User Interface 4 3 1 Emulation Menu Choice Port The Port menu choice allows the user to specify the serial port on which the communication protocol is installed The application engineer must specify the serial port number before using the Next Last Optns Msg or Diags options available in the Emulation Menu Both the port usage and the type of protocol loaded are displayed g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help gmm a lammwiy amp e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Next Last Optns Msg Diags Reset TWC Vital Diags Exit Port 1 has 1 stations using 31965 005 01 REV C10 DATATRAIN R VIII Mar 11 2015 10 36 06 Select the code port Figure 4 2 Emulation Menu Select the Serial Port P2346E Rev Mar 15 4 4 Alstom Signaling Inc Diagnostic and User Interface 4 3 2 Emulation Menu Choices Next and Last When the Next or Last menu choice is selected the screen displays the current information for a single station once This information is not updated in real time The Next and Last menu options are most useful for a port having multiple stations Otherwise information for station 1 is always
24. SEND TIME NVA DT8 Send date time update xA7 x00 20 TIME IN DT8 NVA Date time update message received xA7 x00 Note Special Message Flags 21 through 24 apply only when using DT8 version C10 or later on CSEX4 and NVSP 21 CLR_LATCHED _ Clear the latched Control data CTL Latched mode only CSEX4 NVSP only P2346E Rev Mar 15 2 19 Alstom Signaling Inc CAAPE Package Table 2 12 Special Message Flags Cont Bit Flag Name Set By Cleared By Description 22 AUTOCLR LATCH CTL NVA none This bit enables the enhanced control data management for Peer Sync mode When this bit is set by the Application incoming control data and queued indication data is cleared whenever the link loss is detected due to a timeout and whenever link is re initialized by either side When the bit is not set incoming latched control data is not cleared Note It is highly recommended that bit 22 is set for all new applications to maximize the coherence of data on both sides of the link This enhanced functionality was made optional in order to avoid conflict with deployed applications configured with earlier versions of the protocol lacking this feature 23 24 unused none none Should be set to PERMZERO P2346E Rev I Mar 15 Alstom Signaling Inc CAAPE Package 2 5 2 8 Text Messages DT8 is capable of handling text character messages and a me
25. SW6 Position RS422 485 all off RS232 all on Serial Port 4 the MAC port uses an EAI 232 transceiver to transmit and receive An alternative connection for Port 4 is via the USB connection J6 Table 5 37 NVSP Board MAC EIA 232 Port Description Pin Function J3 1 J3 2 J3 3 RXD receive data TXD transmit data J3 4 J3 5 J3 6 COM isolated common J3 7 J3 8 J3 9 P2346E Rev I Mar 15 5 25 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 38 NVSP Board MAC USB Port Description Pin Function J4 1 VBUS J4 2 D J4 3 D J4 4 COM J4 5 Shield J4 6 Shield P2346E Rev I Mar 15 5 26 Alstom Signaling Inc Hardware Description and Troubleshooting Guide NON VITAL SYSTEM PROCESSOR 600000000 O oo Oo o o o o o O o o o 0000 0000 P000 0000 0000 0000 0000 0000 0000 0000 0009 0000 0000 ooo 0000 P000 0000 0000 ooo o O O000000000000000000 Figure 5 11 NVSP Board P2346E Rev I Mar 15 5 27 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Function MAC Serial Port Receiving Data Com Processor Serial Port Transmitting Data Serial Port 1 Invalid Address In Received Message Serial Port 1 Error In Received Message Not Used reserved for future use Serial Port 2 Invalid Address In Received Message Serial Port 2 Error In Received Me
26. Selection Message Microprocessor diagnostics screen A choice made by the user from one of several menu options A group of data referred to as a single unit especially with reference to a control or an indication See CPU Modem A device that modulates and demodulates signals transmitted over data communication facilities e g telephone lines Modulus The integer remainder of the division of two integer values The percent sign is used to represent the modulus operator Monitor The act of observing message traffic or a device used for this P2346E Rev I Mar 15 purpose Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Multi Tasking Definition The running of two or more programs tasks by one computer seemingly at the same time Usually each task relinquishes control of the computer after some short period of time to allow the next task to run or each task is run for a given time slice and is then automatically suspended Noise Non vital NVS An unexpected and undesirable signal on a communication port s data line A process whose function does not affect the safety of train operation Contrast with Vital Non vital serial a communication channel via an RS 232 422 485 asynchronous serial link NVSoE NVSP Office Operating Mode Parameter Parity PC Pending Poll Port P2346E Rev I Mar 15
27. Server Mode Port Options and Messages pu Configuration D ata Disable Options LATCHED CONTROLS UNLATCHED CONTROLS x Component Serial Messages Type List s SI Messages m mi 14 Figure B 2 CSEX4 NVSP NVSoE Tab P2346E Rev I Mar 15 B 4 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup NYSoE Properties xj Protocol Cancel Client Server Mode Port NVSoE Set Port Figure B 3 NVSoE Properties Dialog In the NVSoE Properties dialog Figure B 3 the Device pulldown permits selection of enet1 enet2 or Redundant depending on how the local Ethernet devices have been configured on the Network tab this corresponds to setup item 2 above The Protocol pulldown permits the selection of a protocol to use for this NVSoE node DT8 Sync or Genisys for example The Client Server Mode pulldown permits the local end of this particular NVSoE connection to be a TCP IP client or a server this corresponds to setup item 3 above If Server is selected from the Client Server Mode pulldown then a TCP IP port number is set up by clicking on the Set Port button to bring up the Network Port dialog Figure B 4 this corresponds to the bulleted item following setup item 3 Figure B 4 Network Port Dialog In the Network Port dialog Figure B 4 the Type pulldown permits selection of NVSoE NVSoE Legacy or Manual port conf
28. Signaling Inc CAAPE Package Table 2 3 Baud Rates Settable Using Baud Rate Control Record Rate Code name 1 name 2 name 3 default 000 FALSE FALSE FALSE 300 001 FALSE FALSE TRUE 600 010 FALSE TRUE FALSE 1200 011 FALSE TRUE TRUE 2400 100 TRUE FALSE FALSE 4800 101 TRUE FALSE TRUE 9600 110 TRUE TRUE FALSE 19200 111 TRUE TRUE TRUE P2346E Rev Mar 15 2 7 Alstom Signaling Inc CAAPE Package 2 5 2 Site Specific Message Definitions For each field station use the CAAPE to define the following message buffers A Control buffer for the incoming message An Indication buffer for the outgoing message An optional Special Message buffer to facilitate or control the interchange of data between the DT8 protocol and the non vital application logic An optional Text Message buffer Some operating modes of DT8 allow multiple uniquely addressed stations to exist on a single serial port To accomplish this define a separate set of message buffers for each station having a unique address Two methods are provided for defining serial messages and their contents Both can be used interchangeably in the Serial Communications Section or Network Serial Communications Section of the non vital application after a ports SERIAL PORT record Identify an incoming message with a CONTROL record and an outgoing message with an INDICATION record The CAAPE processes all such records encountered Use a MESSAGE record to i
29. Slave Polling and Message Exchange 3 18 Table 3 10 Data Flow Tasks 3 22 P2346E Rev Mar 15 vi Alstom Signaling Inc Table No Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Table 4 6 Table 4 7 Table 4 8 Table 4 9 Table 4 10 Table 5 1 Table 5 2 Table 5 3 Table 5 4 Table 5 5 Table 5 6 Table 5 7 Table 5 8 Table 5 9 Table 5 10 Table 5 11 Table 5 12 Table 5 13 Table 5 14 Table 5 15 Table 5 16 Table 5 17 Table 5 18 LIST OF TABLES Title Page Emulation Menu Choices 4 3 Select the Message Display Format 4 13 Key to DT8 Messages Counts Information 4 17 Bit Inversion of Displayed Indication Data 4 19 Monitor Menu Choices 4 24 Data Monitor Status Indicators 4 25 Data Monitor Message Descriptors 4 25 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 1 and 2 for Standard DT8 Protocol 4 27 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 3 4 and 5 for Standard DT8 Protocol 4 27 Communication LED Functions CSEX4 and NVSP Ports 1 and 2 for Standard DT8 Protocol 4 27 Communication LED Functions CSEX 1 CSEX2 and CSEX3
30. WORDIBITIK 2 WORDIBIT2K 3 WORDIBIT3K 4 WORDIBIT4K 5 WORDIBIT5K 6 WORDIBIT6K 7 WORDIBIT7K 8 WORDIBIT8K 9 WORD2BIT1K 10 WORD2BIT2K 11 WORD2BIT3K 12 WORD2BIT4K 13 WORD2BIT5K 14 WORD2BIT6K 15 WORD2BIT7K 16 WORD2BIT8K 17 WORD3BIT1K 18 WORD3BIT2K 19 WORD3BIT3K 20 WORD3BIT4K 21 WORD3BIT5K 22 WORD3BIT6K 23 WORD3BIT7K 24 WORD3BIT8K SPECIAL CONTROL LENGTH 24 USED TO PASS FLAGS BETWEEN THE PROTOCOL AND T NOTE FLAGS SET BY THE PROTOCOL MUST BE CLEAR 1 BIT_MAP_IN 2 CHANGE_IN 3 ACK_IN 4 POLL_IN 5 MAP_REQ_IN 6 BIT_MAP_OUT 7 CHANGE_OUT 8 ACK_OUT 9 POLL_OUT 10 MAP_REQ OUT 11 STATION_ALIVE 12 POLL_ENABLE 13 TEXT_IN 14 TEXT_OUT 15 SEND_MAP 16 PERMZERO 17 SEND TIME REQ NON VITAL APPLICATION BY NON VITAL LOGIC STAT EMENT Alstom Signaling Inc CENTRACODE I SAMPLE CAAPE INPUT FILE 18 TIME REQ IN 19 SEND TIME 20 TIME IN 21 PERMZERO 22 PERMZERO 23 PERMZERO 24 PERMZERO P2346E Rev I Mar 15 A 4 Alstom Signaling Inc CENTRACODE I SAMPLE CAAPE INPUT FILE A 3 CSEX4 NVSP SAMPLE CAAPE INPUT FILE KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK FILE SAMPLE NSS xd COMMUNICATIONS INPUT FILE DataTrain VIII EMULATION ACKCkCk lt k k kCkck lt k ck lt ck kck ck ck k k ck ck lt k ck k ckck k ck ck ck ck
31. a data communication protocol that enables information to move efficiently to and from a control office and field locations using a point to point data link or a switched IP network An application engineer designs and configures the parameters of the DT8 protocol using Computer Aided Application Programming Environment CAAPE a software program manufactured by Alstom Signaling Inc The application engineer can then configure DT8 for a number of wayside non vital processing components and assign it to a specific communication path The variable length message structures supported by DT8 maximize the efficiency of the communication channel by allowing only the parameters that changed to be transmitted In addition DT8 protocol supports full bit map data image transmission A Cyclic Redundancy Check 16 polynomial CRC 16 provides error detection for messages DT8 protocol acknowledges messages received with a correct CRC 16 If no response is received from the original device DT8 assumes there is an error in transmission and re transmits the message P2346E Rev Mar 15 1 1 Alstom Signaling Inc General Description Each character in an asynchronous serial message consists of the following components a start bit a parity bit optional seven or eight data bits called a byte one or two stop bits DT8 supports the following message types Subcommand Acknowledge Poll Change Bitmap Request Bitmap and Text The Subcommand mes
32. a group of Alstom non vital communications processor boards part of the CenTraCode Il v family of circuit boards Includes the original CSEX sometimes referred to as CSEX1 or CSEX 1 CSEX2 CSEX3 and CSEX4 Abbreviation for CenTraCode Il system hardware or software CTS Current Loop Data Data Communications Equipment DCE Data Logging Data Terminal Equipment DTE Clear To Send a hardware control signal used by DCE to indicate it is ready to accept data from DTE typically paired with RTS A means of communicating serial data via the presence or absence of current in a 2 wire cable The value of one or more bits of information Interface equipment e g a modem used to couple Data Terminal Equipment DTE into a transmission channel The recording of selected data in the processor s battery backed memory BBRAM usually on the basis of change of state to one or more application parameters for later evaluation by the user Typically a computer specifically CenTraCode II or a terminal connected to Data Communications Equipment DCE De assert To set a signal to its false or off state Decimal A number base containing ten digits O through 9 Destination The recipient of a serial message Contrast with Source Digit A single numeric character Disable To disallow turn off or otherwise deactivate DPRAM Abbreviation for Dual Port Random Access Memory a memory device having bi directi
33. any time and must poll slaves for information Slave Each unit that is not a master on a Master Slave line Slave units speak only when polled by the master unit and only if properly addressed Throughout this manual the notation of a lower case x followed by two numbers letters or a combination of both represents a hexadecimal value Use Table 3 2 to convert between decimal base 10 hexadecimal base 16 and binary base 2 Table 3 2 Decimal Hexadecimal and Binary Values Dec Hex Bin Dec Hex Bin Dec Hex Bin Dec Hex Bin 1100 1101 1110 c PM O 1111 For example the DT8 Acknowledge command byte is xAA or 1010 1010 in binary and the bitmap command byte is xAE or 1010 1110 in binary P2346E Rev Mar 15 3 1 Alstom Signaling Inc Theory of Operation 3 2 2 Modes of Operation The application engineer specifies the DT8 operating mode when he or she designs the non vital application In all operating modes DT8 can queue up to eight non concurrent indication parameter changes if communication fails or controls are either latched or unlatched If communication fails changes occur quicker than the reporting capabilities of DT8 can handle An example is when several application parameters change state within a time period shorter than the polling interval especially in Master Slave Mode DT8 s eight deep indication is known as First In Firs
34. from x11 and byte 4 has changed to xAA from x44 This byte is sent as two split bytes xAO and xOA The master acknowledges xAA this message and continues polling P2346E Rev Mar 15 3 17 Alstom Signaling Inc Theory of Operation Table 3 9 Other Master Slave Polling and Message Exchange Master Slave 2 Slave 3 Slave 4 Slave 5 AB 02 A9 AA 02 A9 AB 03 A9 AB 04 A9 AA 03 A9 AA 04 A9 AB 05 A9 AA 05 A9 AB 02 A9 AB 03 A9 AA 02 A9 AB 04 A9 AE 04 00 11 22 33 44 55 3B 7F A9 AA 04 A9 AB 05 A9 AB 02 A9 AA 03 A9 AA 02 A9 AA 05 A9 AB 03 A9 AA 03 A9 AE 04 11 22 33 44 55 66 C5 59 A9 AC 04 01 55 04 AO 0A 7A FF A9 AA 04 A9 AB 05 A9 AA 05 A9 AB 02 A9 AB 03 A9 AB 04 A9 AA 02 A9 AA 03 A9 AA 04 A9 AB 05 A9 AA 05 A9 P2346E Rev I Mar 15 Alstom Signaling Inc Theory of Operation 3 2 5 DT8 Message Timing This section describes the protocol s use of message interval timers to determine message timeouts and the polling interval These timers are specified in the application s protocol configuration file Their usage differs between Master Slave and Peer Sync Modes The hardware control signals RTS and CTS that control the flow of transmitted messages 3 2 5 1 RTS CTS Timing Figure 3 1 shows DT8 use of the RTS and CTS signals to control the flow of data See Section 2 7 for descriptions
35. is acknowledged and the next poll is sent P2346E Rev Mar 15 3 20 Alstom Signaling Inc Theory of Operation AB 01 A9 AC 03 02 DD xx xx A9 AB 02 A9 AA 01 A9 AA 03 A9 Figure 3 4 Detection of Change Message Figure 3 5 shows a poll a Change message in response and the acknowledge to the slave station Since the Quiet Poll Interval has not expired the next poll is held off AB 01 A9 AB 02 A9 AB 02 A9 AC 01 01 CC xx xx A9 Figure 3 5 Delay of Poll of Other Stations Figure 3 6 shows the same sequence as in Figure 3 5 except when the change is acknowledged by the master no time remains in the Quiet Poll Interval This results in an immediate polling of the next slave station AB 01 A9 AA 01 A9 AB 02 A9 AC 01 01 CC xx xx A9 Figure 3 6 Condition for Scanning Other Stations 3 2 5 3 Message Timing in Peer and Sync Modes In a peer to peer system Peer Mode and Sync Mode only the Message Timeout Interval is used by DT8 When a peer unit sends a message the timer is started If the remote unit does not send the required response before the timer expires the message is sent repeatedly until the remote unit does respond properly See Section 3 2 2 for more information on the use of the Message Timeout Interval in both Peer and Sync Modes P2346E Rev Mar 15 3 21 Alstom Signaling Inc Theory of Operation 3 2 6 Data Handling Data flow in DT8 is controlled by four main tasks I O Han
36. nene a Gateway none nt Port wvsoE Port NVSoE Set Port s Figure B 6 Remote Connection Data Dialog In the Remote Connection Data dialog Figure B 6 the Remote Name box is provided for entering a descriptive name for the remote node The Remote Node ID is used for certain situations in which multiple remote connections are being made to a particular local NVSoE node this can be left at 1 if there is only a single remote device associated with a local NVSoE node The Connection Type relates to setting the remote TCP IP port number this will be explained in more detail later The button to the right of the Gateway field permits a network gateway device to be identified for this connection if the remote end of the connection is not in the same subnet as the local end of the connection i e the subnet set in the Network tab Figure B 1 then the IP address of the gateway that connects the local subnet to the larger network must be identified by using this button and the associated dialog the name of the selected gateway is shown in the Gateway field P2346E Rev I Mar 15 B 7 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup Depending on the local Ethernet devices that a particular NVSoE node is configured to use i e enet1 enet2 or Redundant in the Device setting in the NVSoE tab in Figure B 2 the Remote Connection Data dialog Figure B 6 will provide p
37. only or a warning is generated when the application is compiled and the rate is set to 9600 baud For example DEFAULT BAUD RATE 2400 This record is used to identify a set of non vital input parameters Control Data Format whose values are used by DT8 to determine the baud rate at run time When this record is present these values override all other baud rate specifications This record is not used in the Network Serial Communications section BAUD RATE CONTROL name 3 name 2 name 1 name 1 through name 3 are the names of input or logic parameters whose values determine the baud rate Only the baud rates listed in Table 2 3 are available using this record For example BAUD RATE CONTROL NVI 03 NVI 02 NVI 01 This record identifies the serial data format If the record is not present the default data format is 8 data bits 1 stop bit and odd parity This record should be used if these defaults are not satisfactory This record is not used in the Network Serial Communications section DATA FORMAT databits stopbits parity databits specifies the total number of data bits in each serial character 7 or 8 stopbits specifies the number of stop bits in each serial character 1 or 2 parity specifies the type of parity to use for each serial character E Even O Odd N None For example DATA FORMAT 8 1 DATA FORMAT 7 2 E P2346E Rev Mar 15 2 6 Alstom
38. protocol for serial communications with another device The following DT8 types are supported DT8 DT8 CODE or DT8 CODE SLAVE DT8 Slave Mode with default unlatched controls DT8 CODE MASTER DT8 Master Mode with default unlatched controls e DT8 SLAVE DT8 Slave Mode with default latched controls e DT8 MASTER DT8 Master Mode with default latched controls e DT8 PEER DT8 Peer Mode with default latched controls e DT8 SYNC DT8 Sync Mode with default latched controls P2346E Rev Mar 15 2 3 Alstom Signaling Inc CAAPE Package Table 2 1 Serial Network Port Record Descriptions Cont Option Description device The network device to be used ENET1 ENET2 or REDUNDANT for path redundant MMS links using both network devices The default for latched vs unlatched controls applies if the options parameter is omitted See Section Modes of Operation for detail on the DT8 operating modes options These options are specific to the DT8 protocol and are used to override the default latching of controls e UNLATCHED CONTROLS All controls for this port are automatically cleared once per application cycle LATCHED CONTROLS Controls are not automatically cleared and the state of control bits is retained by DT8 Examples SERIAL PORT 1 TYPE DT8 SERIAL PORT 2 TYPE
39. protocol intended for all Message remote stations none of which should reply Typically a broadcast message uses a station address of zero P2346E Rev I Mar 15 Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Definition Buffer A block of RAM locations holding a related set of information Byte A sequence of adjacent binary digits usually eight operated on as a unit CAAPE Alstom s Computer Aided Application Programming Environment CenTraCode II Alstom s non vital communications processor boards CSEX CSEX2 CSEX3 CSEX4 and NVSP Checksum A value mathematically computed for and appended after a packet of data and regenerated and verified by the receiver to more likely ensure correct message transmission sometimes called a checkword Clear To assign a false value zero to one or more parameters or flags Clock Signal In synchronous communication a square wave signal of a fixed frequency used to time each bit of transmitted and received messages Code A series of software instructions executed by the CPU synonymous with Program Code line A communication link over which controls and indications are exchanged Code Unit A device specifically the CTC2 whose primary purpose is the efficient transfer and processing of serial communication data controls and indications Command The portion of a communication protocol s serial messa
40. serial port and the non vital application logic The menu offers the following selections Post Disp Display Spc Special and Mode g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help A CPE lt sci alm ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Message Interface Post Disp Spel Mode gt Figure 4 5 Emulation Menu Message Submenu P2346E Rev Mar 15 4 7 Alstom Signaling Inc Diagnostic and User Interface 4 3 4 1 Post Menu The Post menu choice allows users to enter keyboard input to replace the control message normally posted by the protocol emulation This feature helps determine if a problem is in the application or the emulation To post a control select the Post option If more than one station exists the screen prompts the user for the station number The user enters the proper station number The screen displays the maximum number allowed After a prompt showing the size of the control message displays the user enters the new data as a series of hexadecimal bytes When the entry is complete the message is posted for processing by the application logic At most 96 bits 12 bytes can be manually posted If DT8 receives a valid control message through the serial port the protocol posts it and overwrites the control that was manually posted Figure 4 6 shows an example screen
41. start of the application task flag is false then midway through the application the flag could go true See SECTION 3 Theory of Operation for details on the various DT8 message types and modes of operation Table 2 12 Special Message Flags Bit Flag Name Na Description 1 BIT MAP IN NVA Bit map received xAE 2 CHANGE IN Change received xAC 3 ACK IN Acknowledge received xAA 4 POLL IN Poll received xAB 5 MAP REQ IN or DT8 NVA Slave Mode Bit map request CAA ACK received XAD Peer Sync Mode CAA Change Acknowledge This flag is set by DT8 to inform the application that the posted data change is accepted P2346E Rev I Mar 15 2 17 Alstom Signaling Inc CAAPE Package Table 2 12 Special Message Flags Cont Flag Name Set By Cleared By Description BIT MAP OUT CHANGE OUT DT8 NVA Bit map sent xAE Change sent xAC ACK OUT Acknowledge sent xAA co N POLL_OUT MAP_REQ_OUT DT8 NVA Poll sent xAB Bit map request sent xAD mmk O 12 13 STATION ALIVE POLL ENABLE TEXT IN DT8 NVA DT8 DT8 NVA Station Alive This flag is used only in Master Mode to inform if slave stations are responding If a slave station responds DT8 clears the Station Alive flag to O zero If the slave station does not respond to three consecutive messages the Station Alive flag is set t
42. the message timeout must not be set any shorter than twice the sum of the expected worst case transmission time and propagation delay on the network path between the two DT8 nodes As a general guideline to avoid network congestion the polling interval should not be set any shorter than twice the message timeout interval Alstom offers the user a Microsoft Windows based CAAPE graphical LPC editor as a method for selecting DT8 port settings and generating LPC files P2346E Rev Mar 15 2 28 Alstom Signaling Inc CAAPE Package 2 7 3 Windows Based CAAPE Graphical LPC Editor The CAAPE provides a built in graphical editor for creating DT8 LPC files Table 2 17 Create an LPC File With CAAPE Step Action 1 Open a non vital application project and configure the LPC file 2 Open the LPC component and a form is displayed for entry of the protocol s option settings EDIS EU RES Quiet Poll Interval ms 250 Expedite Mode Message Timeout ms 100 T Multi Drop Flag I CTS Flag ATS to CTS Dela Forever m ATS Invert Flag CTS Invert Flag baa fio AD AE Pol AE Timeout ms D K Output Buffer Sync Message Limit 3 3 Enter the desired settings Save the component Convert the LPC graphical component s data to a LPC text file and refer to that file in a CONFIGURATION FILE record in the non vital application described earlier in this section If the application is created enti
43. vital application code is not operational Verify proper CSEX3 DS4 CSEX4 DS10 Main Processor programming of the EPROMs or FLASH e NVSP M CYC Main NVSP Processor P2346E Rev Mar 15 5 29 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 39 CenTraCode Il Troubleshooting Guide Cont Observation The CPU Is Running LED flashes on and off CSEX CR10 CSEX2 DS19 e CSEX3 DS3 CSEX4 DS14 Communication Processor NVSP C CYC Communication Processor Possible Cause This LED should remain on to indicate that the embedded System Software is running correctly If this LED does not stay on the operating software is not running correctly Verify proper programming of the EPROMs or FLASH The receiver does not respond to a request from the remote communication unit RTS CTS is not connected or is not functioning as programmed Controls or displays do not function as expected The Maintenance Access MAC port does not operate properly CAA application logic programming error or incorrect wiring Check the error code shown on the 2 digit diagnostic display if applicable See the troubleshooting section of the appropriate system manual P2086B for VPI P2511 for VPI II P2521B for iVPl Check the wiring of the MAC port cable Check the MAC port for communication activity Simultaneously press Ctrl E at the VT100 term
44. 22 RS 423 or RS 485 RTS P2346E Rev I Mar 15 An industry standard for a 25 pin communication interface that connects computers and various forms of peripheral equipment Standards for serial transmission that extends distance and speed beyond the RS 232 standard Request To Send a hardware control signal used by DTE to control the flow of serial data through a communication port typically paired with CTS Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Set Serial Interface Definition To assign a true value one to one or more parameters or flags A data channel usually a serial port that transfers digital data one bit after another Site Specific A set of instructions or operating parameters appropriate for a certain field location Software Programs used in operating a digital computer Source The originator of a serial message Contrast with Destination SRAM Abbreviation for Static Random Access Memory Stack An area of system memory RAM used by a subroutine for the temporary storage of information State The current true or false value of an application parameter or device Station A uniquely addressed location in a communication network containing a set of site specific controls and indications Subroutine A portion of a computer program that carries out a specific operation or processing function Switch Block A hardwa
45. 3 11 Alstom Signaling Inc Theory of Operation 3 2 3 5 1 Subcommand x00 Date Time Update The following items comprise the rest of this Subcommand Second minute hour day month year 100 year 100 time zone Cir Ch See Table 3 5 for subcommand descriptions Table 3 5 Subcommand x00 Descriptions Subcommand Description second The seconds of the current time in hexadecimal from x00 to x3B 00 to 59 minute The minutes of the current time in hexadecimal from x00 to x3B 00 to 59 hour The hours of the current time in hexadecimal from x00 to xA7 00 to 23 Military Time day The current day of the month in hexadecimal from x01 to x1F 01 to 31 month The current month of the year in hexadecimal from x01 to XOC 01 year 96 100 to 12 The current year in hexadecimal operated on by a modulus of 100 This represents the last two digits of the year For example if the year is 2001 then 200196 100 results in x01 96 is the modulus operator year 100 The integer division of the year by 100 resulting in the century portion the first two digits of the year in hexadecimal Thus 2001 100 results in x14 20 time zone The time zone in hexadecimal from x00 to x17 00 to 23 ci and ch P2346E Rev I Mar 15 The low and high bytes respectively of the CRC 16 checksum 3 12 Alstom Signaling Inc Theory of Operation DT8 can truncat
46. ALSTOM ACCUTRACK PRODUCT SOLUTIONS DataTrain VIII Code for the Alstom CenTraCode Il CTC2 System User Manual Copyright 1995 1998 2000 2001 2002 2011 2012 2015 Alstom Signaling Inc NWARNING Read and understand this manual and all included warnings before using this equipment a Failure to follow the instructions presented in this manual could result in property damage injury and or death User Manual P2346E ALSTOM ACCUTRACK PRODUCT SOLUTIONS DataTrain VIII Code for the Alstom CenTraCode II CTC2 System User Manual Copyright 1995 1998 2000 2001 2002 2011 2012 2015 Alstom Signaling Inc NWARNING Read and understand this manual and all included warnings before using this equipment By Failure to follow the instructions presented in this manual could result in property damage injury and or death User Manual Alstom Signaling Inc P2346E Rev I March 2015 Printed in U S A LIST OF EFFECTIVE PAGES P2346E DataTrain VIII Code for the Alstom CenTraCode Il CTC2 System User Manual Manual ORIGINAL ISSUE DATE November 2001 CURRENT REVISION AND DATE Rev March 2015 PAGE CHANGE OR REVISION LEVEL Cover Mar 15 Title page Mar 15 Preface Mar 15 i through viii Mar 15 1 1 through 1 18 Mar 15 2 1 through 2 30 Mar 15 3 1 through 3 24 Mar 15 4 1 through 4 28 Mar 15 5 1 through 5 30 Mar 15 A 1 through A 6 Mar 15 B 1 through B 10 Mar 15 P2346E Rev
47. ATION Records The DESTINATION record provides the ID identification name of the board that is to receive a message This record is paired with a SOURCE record for each message defined in the Serial Communications Section The CAAPE processes the message only if either the SOURCE or DESTINATION name matches the name specified in the CSEX or CTC2 ID record in the application s CSI file Below is the syntax for the Destination record followed by an example DESTINATION id name DESTINATION MAIN CODE UNIT The SOURCE record is similar to the DESTINATION record except that it identifies the ID name of the board from which the message originates It is paired with a DESTINATION record for each message defined Below is the syntax for the Source record followed by an example SOURCE id name SOURCE STANDBY CODE UNIT See Table 2 8 for descriptions of the Destination and Source parameters Table 2 8 Destination and Source Parameters Parameter Description id name Must match the 40 character maximum board ID supplied on a CSEX or CTC2 ID documentation record for the board that receives the message P2346E Rev Mar 15 2 13 Alstom Signaling Inc CAAPE Package The MESSAGE record identifies the station address and message length for either an incoming control or outgoing indication message This record follows either a SOURCE or DESTINATION record for the message and precedes the mess
48. Addr The station address in decimal ain The total number of Acknowledge xAA messages received bin The total number of Poll xAB messages received request for information cin The total number of Change xAC messages received din The total number of Bitmap Request xAD messages received ein The total number of Bitmap xAE messages received aout The total number of Acknowledge xAA messages sent bout The total number of Poll xAB messages sent request for information cout The total number of Change xAC messages sent dout The total number of Bitmap Request xAD messages sent eout The total number of Bitmap xAE messages sent ack The total number of messages sent since receipt of the last Acknowledge xAA c_state Monitors bit map conditions while operating in Peer Mode 0 No bit maps have been sent 1 A bit map has been sent and DT8 is awaiting a bit map in response 3 A bit map has been sent and a bit map has been received in response The number displayed after the c_state value is a test counter that can be ignored Msg The total number of times a received message was corrupted or interrupted Aborts before completion This counter is an aggregate for all stations P2346E Rev Mar 15 4 17 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 3 Show Info Menu The Show Info menu choice shows a single station s messages counts and the contents of the station s eight deep indicati
49. B 3 provides the following choices e DT8 DT8 Code DT8 Code Master e DT8 Code Slave DT8 Master DT8 Peer e DT8 Slave DT8 Sync Genisys e Modbus Slave e Modbus TCP Client e Modbus TCP Server Details for each of these protocols are provided by the user manuals for the protocols e P2346E DataTrain VIII Code System for the Alstom CenTraCode II CTC2 System User s Manual this manual e P2346F CenTraCode Il s and Il v Communication Systems Emulation Genisys Code System e P2346AA Modbus TCP Server Protocol Emulation for the Alstom CenTraCode II CTC2 System User s Manual P2346E Rev I Mar 15 B 10 Alstom Signaling Inc A Asynchronous serial message 1 2 B Baud rates 2 7 Board CSEX 5 7 Board CSEX2 5 11 Board CSEX3 5 16 Board CSEX4 5 22 Board NVSP 5 27 C CAA reference manuals 2 1 CAAPE graphical editor 2 29 CAAPE input files typical 2 1 Command date time 3 13 Communication protocols B 1 Configuration editor 2 24 Configuration settings 2 25 Connection client server B 2 Cyclic Redundancy Check 1 1 D Data flow 3 22 Data flow tasks 3 22 Data monitor message descriptors 4 25 Data monitor status indicators 4 25 Date Time command time zone 3 13 DT8 configuration settings 2 25 DT8 message types 3 9 DT8 Settings 2 24 DT8 Support Files 2 23 P2346E Rev I Mar 15 INDEX E Emulation Menu 4 2 Emulation menu choices 4 3 Ephemeral port number B 7 F Flowchart con
50. Board P2346E Rev I Mar 15 Alstom Signaling Inc Hardware Description and Troubleshooting Guide PCB NOTATION LABEL FUNCTION DS1 ISO5V Isolated 5V F SW1 MAC F B Maintenance Port Selection B Front or Back of Board TP3 5V 5 Volts J3 MAC Port COM Common PWR System 5V Logic RUN CPU Is Running APPL EXEC Application Is Running RESET Reset Switch PL Channel 5 Transmitting Data Channel 5 Receiving Data per Channel 4 Transmitting Data 4RX Channel 4 Receiving Data 3TX Channel 3 Transmitting Data 3RX Channel 3 Receiving Data FL WR EN Flash Write Enable 2NORMAL Channel 2 Normal Future Use 2RX ERROR Channel 2 Error In Received Message 2INVAL ADDR Channel 2 Invalid Address In Received Message 2RESPONSE Channel 2 Transmitting Data 2ADDR OK Channel 2 Valid Address Message Received 1NORMAL Channel 1 Normal Future Use 1RX ERROR Channel 1 Error In Received Message 1INVAL ADDR Channel 1 Invalid Address In Received Message 1RESPONSE Channel 1 Transmitting Data 1ADDR OK Channel 1 Valid Address Message Received Diagnostic Display ENTER SELECT O Test Point 9 LED Figure 5 8 CSEX3 Board Edge P2346E Rev I Mar 15 5 17 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 2 6 CSEXA Board Refer to Alstom publication P2511B for details on the CSEX3 Board P N 31166 417 XX hardware Refer to th
51. Board Jumpers 5 24 Table 5 35 NVSP Board Channel 1 Communication Standard Selection Switch Settings 5 25 Table 5 36 NVSP Board Channel 2 Communication Standard Selection Switch Settings 5 25 Table 5 37 NVSP Board MAC EIA 232 Port Description 5 25 Table 5 38 NVSP Board MAC USB Port Description 5 26 Table 5 39 CenTraCode Il Troubleshooting Guide 5 29 P2346E Rev Mar 15 viii Alstom Signaling Inc General Description SECTION 1 GENERAL DESCRIPTION 11 SCOPE OF MANUAL This section provides general information about the DataTrain VIII DT8 protocol This manual describes the DT8 protocol and how it operates when it is deployed across Alstom wayside non vital processing components This manual also provides procedures to help diagnose and troubleshoot issues with the protocol which may occur when used in conjunction with these non vital processing components AN WARNING NON VITAL COMMUNICATIONS SOFTWARE IS NOT FAIL SAFE The non vital communications software is not designed for fail safe application and must not be used for safety critical operations Failure to comply can degrade the safety performance of the train control system resulting in property damage injury and or death due to train collision or derailment 12 INTRODUCTION DT8 is
52. CAAPE records that follow comprise an application s NVS Communication Section or NVSoE Communication Section When a record offers more than one choice they are listed with each choice shown in quotation marks In this case use the desired choice exactly as shown herein but without the quotation marks P2346E Rev Mar 15 2 2 Alstom Signaling Inc CAAPE Package 2 3 SERIAL PORT OR NETWORK PORT NUMBER AND PROTOCOL EMULATION TYPE The SERIAL PORT or NETWORK PORT record defines the use of a CenTraCode II serial port for code system emulation or serial communications This record also identifies the type of code system protocol to be emulated in this case DT8 or the type of serial communications to perform and can specify certain options available for the communication protocol It is the first in a series of records that define the configuration and messages of the serial port One SERIAL PORT record is required for each serial port used in the CenTraCode ll system SERIAL PORT port TYPE type options or NETWORK PORT port TYPE type DEVICE device options See Table 2 1 for descriptions of each record option Table 2 1 Serial Network Port Record Descriptions Option Description port The number of the serial port to be used for receiving and transmitting DT8 messages it is a 1 digit number from 1 to 5 or 1 to 3 with CSEX4 NVSP type The name of the code system to be emulated on the port or
53. DT8 PEER SERIAL PORT 3 TYPE DT8 MASTER UNLATCHED CONTROLS NETWORK PORT 1 TYPE DT8 SYNC DEVICE ENET1 LATCHED CONTROLS Typically the SERIAL PORT or NETWORK PORT record is immediately followed by records describing the protocol configuration file operating mode default baud rate and other characteristics P2346E Rev Mar 15 2 4 Alstom Signaling Inc CAAPE Package 2 4 MAC TCP PANEL NETWORK PORT The MAC TCP PANEL PORT record is used to define a special network port for communicating panel messages to MMS with the MAC TCP protocol It is typically followed by one control and or one indication message 25 SERIAL NETWORK MAC TCP PORT CHARACTERISTICS The SERIAL PORT NETWORK PORT or MAC TCP PORT record is immediately followed by records describing the protocol configuration file operating mode default baud rate and other port characteristics 2 5 1 Serial Network MAC TCP Port Records See Table 2 2 for descriptions of the optional records that describe describing the protocol configuration file operating mode default baud rate and other port characteristics Table 2 2 Serial Network MAC TCP Port Record Descriptions Record Description Configuration This record specifies the name of a user created configuration file File containing DT8 specific settings used to override default settings assigned by the CAAPE See Section 2 7 for details on default protocol settings and creating a protocol conf
54. File Device Actions Configure View Help ES uam eae ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Message Interface Post Disp Spel Mode Exit Last control posted E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 D3 E2 03 E2 03 Last indication posted E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 E2 03 Last Special message posted A4 DB 00 _ gt Figure 4 7 Display Messages in Real Time P2346E Rev Mar 15 4 10 Alstom Signaling Inc Diagnostic and User Interface 4 3 5 1 Spcl Menu The Spc menu choice allows user entered keyboard input to be posted to the protocol s Special Message buffer The use of the flags in the Special Message buffer is described in SECTION 2 CAAPE Package To post a Special Message select the Spc option If more than one station exists a prompt for the station number appears In this case enter the proper station number the maximum number allowed is displayed After a prompt showing the size of the Special Message appears typically three bytes containing 24 flag bits enter the new data as a series of hexadecimal bytes When the entry is complete the application logic and the protocol emulation posts the message If DT8 receives messages through the serial port the protocol may write to the Special Messag
55. IP connection simply appears to be a high speed serial connection Because of this independence between the higher level protocol DT8 Genisys Modbus and the TCP IP client server connection either end of the TCP IP client server connection can be used for master or slave or client or server of the higher level protocol For example a DT8 Master could be on the TCP IP server end of an NVSoE connection with DT8 Slave on the TCP IP client end of the connection even though it might be expected that DT8 Master should be a TCP IP client because it initiates a data transaction If a TCP IP connection is being established between a CSEX4 NVSP board and equipment from another vendor the independence between protocol and TCP IP client server no longer applies In this case the initiating end of the connection should be configured as a TCP IP client and the responding end of the connection should be configured as a TCP IP server For example when configuring an Ethernet connection between CSEX4 NVSP and another vendor s device using Modbus TCP protocol then the end of the connection that is configured to use Modbus TCP Client must also be set up as a TCP IP client and the end of the connection that is configured to use Modbus TCP Server must also be set up as a TCP IP server P2346E Rev Mar 15 B 9 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup The Protocol dropdown on the NVSoE Properties dialog Figure
56. MPERS CSEX BOARD 59473 938 Figure 5 3 CSEX Board P2346E Rev I Mar 15 5 7 Alstom Signaling Inc Hardware Description and Troubleshooting Guide PCB NOTATION LABEL FUNCTION RESET Reset Switch 5V Power Channel 4 Transmitting Data Channel 4 Receiving Data Channel 3 Transmitting Data Channel 3 Receiving Data Channel 5 Receiving Data I Channel 5 Transmitting Data CPU Running Low Power if less than 4 5V Channel 2 Normal future use Channel 1 Normal future use Application Is Running O o Channel 2 Error In Received Message Channel 2 Invalid Address In Received Msg Channel 2 Transmitting Data Channel 2 Valid Address Message Received Channel 1 Error In Received Message Channel 1 Invalid Address In Received Msg Channel 1 Transmitting Data Channel 1 Valid Address Message Received Common OOOO OOOO OOOO JIDD 202020700 DADA NINS ALLL AAA NSO OO AUN 4 U Co O Testpoint 0 LEDs Figure 5 4 CSEX Board Edge P2346E Rev I Mar 15 5 8 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 2 4 CSEX2 Board Refer to Alstom publication P2086B for details on the CSEX2 Board P N 31166 049 XX hardware Refer to the online help of Alstom s CAAPE software package for a detailed explanation of the generation and compilation of a non vital application for the CSEX2 hardware platform The CSEX2 MAC port in current loop mode can be connected to the P2 edge connect
57. Mode 1 On terminator byte see Section 3 2 3 1 and applies to Master Slave Mode only Message 10 5000 ms Sets the time in milliseconds the Timeout system waits for a message before Interval faulting the remote unit RTS to CTS Defines the maximum time in Timer milliseconds after asserting RTS Request to Send to wait for CTS Clear to Send If CTS does not become true after this time delay CTS is ignored and transmission takes place regardless If this timer is set to O zero however DT8 waits three seconds for CTS before aborting message transmission Hold RTS Defines the time in milliseconds to hold Timer RTS true after the last byte of a message has been transmitted This guards against the transmit medium such as modem from shutting down before message completion Multi Drop If this flag is true RTS is asserted true Flag before message transmission and is de asserted false upon message completion If this flag is false RTS is asserted all the time Alstom Signaling Inc CAAPE Package Table 2 15 DT8 Configuration Settings Cont Protocol Setting Default Range Description CTS Flag False 0 0 False 1 True If this flag is true DT8 waits for CTS to become true before message transmission begins used in concert with the RTS to CTS Timer described above If this flag is false DT8 ignores the state of CTS RTS Invert Flag CTS Invert Flag AD AE P
58. NK Contains the DT8 protocol emulation software linked with the non vital application Note This file is not a shortcut as is identified by Windows but contains executable code DT8 LPC The default DT8 configuration file used unless another configuration file is specified in the application via a CONFIGURATION FILE record P2346E Rev I Mar 15 2 23 Alstom Signaling Inc CAAPE Package 2 7 CONFIGURATION EDITOR Protocol specific settings for a non vital serial communication port are contained in an LPC Local Port Configuration file The name of a user created protocol configuration file is specified in a CONFIGURATION FILE record in the non vital application described earlier in this section Application specific protocol settings are defined using the DT8 configuration editor which produces a protocol configuration file an LPC file containing the desired settings Otherwise the CAAPE assigns default DT8 settings to the serial port The extension for the configuration file is LPC to avoid conflicts with other file extensions used by the CAAPE If the application does not specify a protocol configuration file for the serial port the default file DT8 LPC is used with the following DT8 settings Table 2 14 DT8 Settings Parameter Setting Baud Rate 1200 Data Format 8 data bits 1 stop bit odd parity Quiet Poll Interval 100 milliseconds ms Expedite Mode Off 0 Message Timeout Interval 100 ms RTS to CT
59. ON ACKCkCk lt k k k k ck k k ck kck k k k ck lt k k ck ck lt k ck k ck ck k ck ck k ck k k k ck k k ck kk k k ck ck k k ck ck k k ck k ck k k k k k k kk k lt X lt SOURCE ESTINATION NAM E APPLICATION S CSI FILE F GI GI NAME SERIAL COMMUNICATIONS SECTION SERIAL PORT 1 TYPE DT8 PEER UNLATCHED CONTROLS CONFIGURATION FILE PEER DT8 LPC DEFAULT BAUD RATE 9600 DATA FORMAT 8 1 N DESTINATION CTCID SOURCE MAIN NOTE FOR THE FOLLOWING MESSAGE TO BE COMPILED THE D MUST MATCH THE BOARD ID NAME SPECIFIED IN THE MESSAGE ADDRESS 00000001 LENGTH 16 1 WORDIBIT1 2 WORDIBIT2 3 WORD1BIT3 4 WORDIBIT4 5 WORDIBIT5 6 WORDIBIT6 7 WORD1BIT7 8 WORDIBIT8 9 WORD2BIT1 10 WORD2BIT2 11 WORD2BIT3 12 WORD2BIT4 13 WORD2BIT5 14 WORD2BIT6 15 WORD2BIT7 16 WORD2BIT8 DESTINATION MAIN SOURCE CTCID NOTE FOR THE FOLLOWING MESSAGE TO BE COMPILED THE MUST MATCH THE BOARD ID NAME SPECIFIED IN TH P2346E Rev I Mar 15 E APPLICATION S CSI FILE GI Alstom Signaling Inc CENTRACODE I SAMPLE CAAPE INPUT FILE p P P2346E Rev I Mar 15 MESSAGE ADDRESS 00000001 LENGTH 24 1
60. P REO OUT STATION ALIVE 12 POLL ENABLE 13 TEXT_IN 14 TEXT_OUT 15 SEND_MAP 16 PERMZERO 17 SEND TIME REQ 18 TIME REQ IN 19 20 21 SEND TIME TIME IN CLR LATCHED CTL 22 23 AUTOCLR_LATCH_CTL PERMZERO 24 PERMZERO P2346E Rev I Mar 15 CAA ACK Alstom Signaling Inc CAAPE Package See Table 2 11 for descriptions of the Special Message Contents parameters Table 2 11 Special Message Contents Parameters Parameter one Description pos The position in the Special Message buffer Special Message data must be numbered and named sequentially starting with position 1 Name The name assigned to the Special Message Flag a true false logic parameter for this position pos in the Special Message buffer if this position is a spare or is to be unused it can be assigned the system reserved name PERMZERO Table 2 12 describes the Special Message Flags used by DT8 The flag names in the table are recommendations only the Application Engineer is free to use any appropriate names The Set By and Cleared By columns indicate whether the non vital application NVA logic or the DT8 protocol is responsible for setting to 1 or clearing to 0 each Special Message Flag Special message flags can be set at any time by the DT8 protocol while the application task is running For example at the
61. Package User s Manual P2512D VPI CAA Reference Manual P2512E DataLogger Event Recording Utility for CenTraCode and VPI Systems User s Manual P2512F iVPI CAA Reference Manual P2521B iVPI integrated Vital Processor Interlocking Control System P2346E Rev I Mar 15 Operation and Maintenance Manual Volumes 1 through 5 1 17 Alstom Signaling Inc General Description THIS PAGE INTENTIONALLY LEFT BLANK P2346E Rev I Mar 15 1 18 Alstom Signaling Inc CAAPE Package SECTION 2 CAAPE PACKAGE 2 1 GENERAL This section describes how the DT8 protocol is incorporated into a non vital application using Alstom s CAAPE software package The CAAPE allows the application engineer to specify and configure DT8 message framing data transmission rates station addresses number of control indication bits and mode of operation For more detailed information about entering records in the CAAPE refer to the CAAPE s online help Appendix A provides examples of typical CAAPE input files 2 2 CAAPE RECORDS The DT8 timing and configuration parameters are adjusted by using the Local Port Configuration LPC editor described later in this section The top level input file for a CenTraCode non vital application has a three character filename extension CSI This file is used to document the non vital program and revision history and to list all the files to be included as part of the non vital application The CAAPE re
62. Ports 1 and 2 for Standard DT8 Protocol 5 2 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 3 4 and 5 for Standard DT8 Protocol 5 3 Communication LED Functions CSEX4 and NVSP Ports 1 and 2 for Standard DT8 Protocol 5 3 CSEX Memory JUMpers x 212 SE SPERO ERN EE RES 5 5 CSEX Serial Port Communication Jumpers 5 5 CSEX Watchdog Jumper 5 5 CSEX2 MAC Port Jumpers 5 9 CSEX2 Serial Port 1 Communication Jumpers 5 9 CSEX2 Serial Port 2 Communication Jumpers 5 10 CSEX2 Memory Jumpers for Devices U36 and U37 5 10 CSEX3 MAC Port Power Selection Jumper 5 13 CSEX3 MAC Port Receive Data Source Selection Switch 5 13 CSEX3 Watchdog Selection Jumper 5 13 CSEX3 Battery Selection Jumper 5 13 CSEX3 Application Switches 5 14 CSEX3 Serial Port 1 Communication Mode Switch 5 14 CSEX3 Serial Port 2 Communication Mode Switch 5 14 CSEX3 Serial Port 2 DC Code Line Selection Switch 5 14 P2346E Rev Mar 15 vii Alstom Signaling Inc LIST OF TABLES Table No Title Page Table 5 19 CSEXS Flash Enable Jumper 5 14 Table 5 20 CSEXS 36 Pin P3 Auxi
63. S Timer 0 ms Hold RTS Timer 10 ms Multi drop Flag Off 0 CTS Flag Off 0 Invert RTS No 0 Invert CTS No 0 AD AE Poll Flag Off 0 AE Timeout 0 ms Sync Message Limit 3 retries Output Buffer Enabled 1 All of these settings except for the baud rate and data format are configurable using the configuration editor The default baud rate 1200 and data format 8 1 odd are used unless overridden by DEFAULT BAUD RATE BAUD RATE CONTROL and or DATA FORMAT records in the application s Serial Communications Section These records are described earlier in this section P2346E Rev I Mar 15 2 24 Alstom Signaling Inc 2 7 1 CAAPE Package DT8 Configuration Settings The DT8 configuration editor allows the user to specify various protocol settings Use of DT8 interval timers and flags as well as the protocol s operating modes are described in detail in SECTION 3 Theory of Operation Consider system response requirements and the data communication rate when selecting time values For example a timeout value less than the time necessary to transmit a complete message causes a problem Table 2 15 DT8 Configuration Settings P2346E Rev I Mar 15 END Default Description Quiet Poll 10 5000 ms Sets the time in milliseconds between Interval polls if the port is a master station and there are no messages pending for any slave station Expedite 0 Off Controls the protocol s use of the A8 A9
64. Title Page Figure 1 1 Non Vital Processor System Structure 1 5 Figure 3 1 RTS CTS Timing Diagram 3 19 Figure 3 2 Message Timeout Interval and Quiet Poll Interval Diagram 3 20 Figure 3 3 Quiet Poll Interval Takes Over 3 20 Figure 3 4 Detection of Change Message 3 21 Figure 3 5 Delay of Poll of Other Stations 3 21 Figure 3 6 Condition for Scanning Other Stations 3 21 Figure 3 7 Control Message Data Flowchart 3 23 Figure 3 8 Indication Message Data Flowchart 3 24 Figure 4 1 Emulation MERU ssa gem apakan BRAY PNE ak ewe eae eho oe 4 2 Figure 4 2 Emulation Menu Select the Serial Port 4 4 Figure 4 3 Emulation Menu View a Station s Messages 4 5 Figure 4 4 Emulation Menu View Port Setup 4 6 Figure 4 5 Emulation Menu Message Submenu 4 7 Figure 4 6 Posta Control Message 4 9 Figure 4 7 Display Messages in Real Time 4 10 Figure 4 8 Posta Special Message 4 11 Figure 4 9 Select the Message Display Format 4 12 Figure 4 10 Display Messages New Hex Format
65. VSP Figure 1 1 Non Vital Processor System Structure P2346E Rev Mar 15 1 5 Alstom Signaling Inc General Description 15 PROTOCOL SETTINGS AND LIMITATIONS See Table 1 2 for the DT8 protocol configuration parameters Table 1 2 Configuration Parameter Settings for DT8 Protocol Parameter Setting Message Framing Parity Even Odd None Stop Bits 1 or 2 Data Transmission Rate 75 to 19 200 bits per second up to 57 600 baud on CSEX3 CSEX4 and NVSP boards Maximum Number of Unique 255 Station Addresses Maximum Number of Control or 1000 bits limit imposed by CAAPE and protocol Indication Bits per Message Duplex Full Duplex adaptable to Half Duplex in Master Slave mode only with proper use of Request to Send RTS and Clear to Send CTS Note The asynchronous serial parameters such as frame format baud rate and flow control are not applicable for non vital over Ethernet serial port virtual serial connections P2346E Rev Mar 15 1 6 Alstom Signaling Inc 1 6 General Description COMMON ABBREVIATIONS AND GLOSSARY This section contains definitions of the terms used in this manual Terms and abbreviations used throughout this manual are provided in Table 1 3 Table 1 3 Common Abbreviations and Glossary Term Definition Acknowledge To reply in a predetermined manner to the reception of a valid message usually used in reference to a communication protocol Addre
66. a required field P2346E Rev lI Mar 15 2 11 Alstom Signaling Inc CAAPE Package 2 5 2 4 Indication Contents Record Multiple indication message data records follow an INDICATION or MESSAGE record described later and name each parameter in the outgoing indication message The LENGTH specified in the preceding INDICATION or MESSAGE record determines the total number of indication message data records One indication message data record is required for each parameter in the indication message Below is the syntax for the Indication Contents record followed by some examples pos name 1 MANUAL PB 2 MC CONTROL 3 PERMZERO 4 BOOLARRAY 32 See Table 2 7 for descriptions of the Indication Contents parameters Table 2 7 Indication Contents Parameters Parameter Description pos The position of this parameter in the indication message indication message data must be numbered and named sequentially starting with Position 1 one name The name assigned to the parameter usually a true false logic parameter for this position pos in the indication message for use in the non vital application if this position is a spare bit it can be assigned the system reserved names PERMZERO or PERMONE Boolean array elements can be used as indication parameters P2346E Rev I Mar 15 2 12 Alstom Signaling Inc CAAPE Package 2 5 2 5 Defining Control Indication Messages with SOURCE and DESTIN
67. age s data records described earlier in this section Below is the syntax for the Message record followed by some examples MESSAGE lt ESSAGE MESSAGE ADDRESS address LENGTH length ADDRESS 01010101 LENGTH 32 ADDRESS 00101100 LENGTH 200 In the second example the address is decimal 44 See Table 2 9 for descriptions of the Message parameters Parameter address length Table 2 9 Message Parameters Description The station address expressed in binary from 1 to 8 bits ordered most to least significant from left to right if omitted the address is set to zero or to the value read from on board switches The total number of parameters bits in the message normally an even multiple of eight this is a required field P2346E Rev Mar 15 2 14 Alstom Signaling Inc CAAPE Package 2 5 2 6 Special Control Record The SPECIAL CONTROL record is optional It defines a Special Message buffer used to transfer information by way of flags concerning communication events between the DT8 protocol and the non vital application A Special Message Flag can be set to a true state by the application to instruct DT8 to perform a one time action such as forcing the transmission of an indication bit map Conversely the DT8 protocol sets Special Message Flags to inform the application of events such as the receipt of a change to controls Generally the notified syste
68. ameters for a station This message contains data for the entire indication or control buffer For example xAE st b 0 b 1 b n c c xXA9 xA8 A9 Transfers text buffers between xAF st b 0 b 1 b DT8 locations This message type n c c xA9 xA8 is used primarily by optional DataLogger software module for downloading event logs to a PC Refer to Alstom publication P2512F For example AF 01 57 41 52 4E 49 4E 47 Cj Cp A9 P2346E Rev Mar 15 3 10 Alstom Signaling Inc Theory of Operation 3 2 3 5 Description of the xA7 Message Type The xA7 message type is used by the DT8 protocol to request and send time synchronization messages This message type was added to DT8 in CSEX CSEX2 CSEX3 software version F32 Its general format is xA7 st Subcommand xA9 where xAT is the command byte Stis the station address 1 to 4 bytes in length For the xA7 message type an address of 0 zero can be used by a master in Master Slave mode for an All Stations broadcast message The All Stations broadcast message is accepted but not acknowledged by all slave stations Subcommand is the actual xA7 command a single byte from x00 zero to xFF It can be followed by a body of data including a CRC 16 checksum xA9is the message terminator byte The following valid xA7 Subcommands are supported by DT8 e Subcommand x00 Subcommand x01 P2346E Rev lI Mar 15
69. an be linked on a one to one basis only Linking is accomplished by using the same message name when specifying text messages on different ports In this case only one of the messages needs a length designation and a separate address designation is required only if the incoming and outgoing message addresses are actually different For example SERIAL PORT 2 TYPE DT8 TEXT CONTROL ADDRESS 00001 LENGTH 100 NAME HHT OUT TEXT INDICATION ADDRESS 00010 LENGTH 100 NAME HHT IN SERIAL PORT 4 TYPE DT8 TEXT CONTROL ADDRESS 11110 NAME HHT IN TEXT INDICATION NAME HHT OUT This example allows a control message received at Port 2 to be transmitted from Port 4 with the same address and the control message received at Port 4 to be transmitted from Port 2 with a different address P2346E Rev Mar 15 2 22 Alstom Signaling Inc 2 6 CAAPE Package REQUIRED DT8 SUPPORT FILES The following files are required in order to compile DT8 with a non vital application All of these files are contained in the CTCFILES folder of the CAAPE PROTOCOL DAT and PROTNAME DAT Used by the CAAPE when compiling an application to obtain references to DT8 files and other data pertinent to DT8 DT8 LNK Contains the DT8 protocol emulation software linked with the non vital application Note This file is not a shortcut as is identified by Windows but contains executable code DT8 P L
70. ap xAE is transmitted An optional feature of the control data management can be enabled via the Special Message Bit 22 AUTOCLR LATCH CTL When a poll xAB message is received or when a link is lost all previously received control values are cleared P2346E Rev I Mar 15 3 3 Alstom Signaling Inc Theory of Operation Note It is highly recommended that bit 22 is set for all new applications to maximize the coherence of data on both sides of the link This enhanced functionality was made optional in order to avoid conflict with deployed applications configured with earlier versions of the protocol lacking this feature 3 2 2 3 Master Slave Multi Drop Mode The Master Slave Mode of operation is used when one station the master controls one or more slave stations on a line which each have a unique destination address An example of this is when an office station sends messages to several field stations The master station sends each slave station in turn a Poll Change bitmap Request or bitmap message Slave stations receiving information from a master must be operating in Slave Mode Each slave decodes the address portion of the message and only the station that matches the destination address acts on the message The one exception is the All Stations broadcast message It contains an address of 0 zero to which all slaves respond but do not acknowledge The All Stations broadcast message applies only to a m
71. ards into a module PC boards can be damaged if power is not turned off Note A note is normally used to provide minor additional information to the reader to explain the reason for a given step in a test procedure or to just provide a background detail An example of the use of a note follows Note This step should be done first to validate the correct information is used P2346E Rev I Mar 15 Alstom Signaling Inc P2346E Rev I Mar 15 Alstom Signaling Inc TABLE OF CONTENTS Topic Page SECTION 1 General Description 1 1 MET Scope of Manual naa screen ee DE ea e one td neg es 1 1 12 introduction Od Deest tee aigue hoe oiled te tero LA Lor peta e 1 1 dor Software OVerVIeW uuu su eee ALS E RUELUPLERE kaPD AUS eee eee 1 3 1 4 Supported Hardware Platforms 1 4 1 5 Protocol Settings And Limitations _ 1 6 1 6 Common Abbreviations and Glossary 1 7 JZ related PUBICAIONGY u xci s oe AES esse evi bn tates EE 1 17 SECTION 2 CAAPE Package 2i ce zxwkkus wd 34 ey Eae ne dowd 2 1 2 1 GENERAL quesito Yer testo Re UR Ora aene eoe uod AA 2 1 2 2 CGAAPE RECORDS se DW M EE be x n SC A e PON aa 2 1 2 3 Serial Port or Network Port number and PROTOCOL emulation type 2 3 2 4 MAC TCP Panel Network Porl 2 5 2 5 SERIAL NETWORK MAC TCP PORT Characte
72. aster when sending an xA7 message for clock synchronization The master polls slaves only if the application logic sets the Poll Enable Flag in the Special Message buffer For more information see the Poll Enable Flag section A master unit repeatedly sends a message until the expected response is received waiting for a preset and user configurable Message Timeout Interval for the response If a message is sent three times without receiving a response the master reverts to polling the failed slave once every ten polling cycles Master Slave Mode typically uses full duplex operation where both the master and slave units have their own separate transmit and receive lines With the proper use of the RTS and CTS signals however it is adaptable to half duplex operation which requires only single transmit and receive lines Note The NVSoE connections are inherently point to point in nature However these connections support the master slave mode Additionally a single slave can be configured as several logical slave stations P2346E Rev I Mar 15 3 4 Alstom Signaling Inc Theory of Operation This functionality is used when a slave DT8 NVSoE port relays information from a master DT8 serial port controlling a number of slave DT8 stations In this case each virtual station on the slave DT8 NVSoE port can represent a physical slave station attached to the master DT8 serial port As a result a TCP IP to RS 485 DT8 gateway is implemented ea
73. ata is shown eight bytes at a time in binary eight bits per byte The least significant bit of each byte is shown at the left of each byte of data For example the hexadecimal byte 0x01 is shown as 10000000 in Binary format Use this format to view message data exactly as posted to the non vital application logic Figure 4 11 shows the same data as in Figure 4 10 New Hex format but in Binary format instead This display format is similar to Binary except that the least significant bit of each byte is shown at the right of each byte of data For example the hexadecimal byte 0x01 is shown as 00000001 in Inverse format P2346E Rev I Mar 15 4 13 Alstom Signaling Inc Diagnostic and User Interface m CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help jomaa R alam Tle Oo ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Message Interface Disp Spcl Mode Exit V Left B Right G Up Down Home 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Last control posted 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 Last indication posted 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 68 04 Last Special message posted Ad OB 00 _ Figure 4 10 Display Messages New Hex Format lt CSEX4 System App Processor Terminal Mode Com 10 connected Al
74. ceiver itself determines the appropriate response to the message and triggers the transmitter to send that response or sets appropriate flags if the message is an acknowledgment to a former message transmission This task is activated whenever the protocol is ready to send a message The task formats any non data type message xAD xAB xAA and sends it If a message requires a checksum the task calculates it while sending the message s data and then appends the checksum to the message The task then checks the system flags and decides the appropriate terminator byte to use This task is used in non slave modes Its function is to monitor system flags timers and buffers to determine the sequence of messages needed to support the current mode of operation This task activates the transmitter and directs which messages need to be sent P2346E Rev Mar 15 3 22 Alstom Signaling Inc Theory of Operation Figure 3 7 and Figure 3 8 are flowcharts showing the assembly of either a received control or a sent indication message START CLEAR LOCAL APPLICATION MESSAGE BUFFER POST LOCAL CHANGE BUFFER TO APPLICATION INPUT MESSAGE AVAILABLE SET FLAGS FOR MESSAGE RECEIVED IS LATCHED CONTROL FLAG ENABLED CLEAR LOCAL APPLICATION BUFFER SEND APPROPRIATE RESPONSE ASSEMBLE CHANGES INTO LOCAL APPLICATION BUFFERS Figure 3 7 Control Message Data Flowc
75. cords discussed in this section are part of the Non vital Serial NVS Communication and Non vital Serial over Ethernet NVSoE Communication sections of a non vital application e NVS is used to configure data communication through the board s serial ports e NVSoE is used to configure data communication through the virtual serial connections supported by the CSEX4 NVSP platform Virtual serial connections also require that a number of network settings be specified using additional records in other sections Note Network configuration records are outside the scope of this manual but can be found in the appropriate VPI P2512D or iVPI P2512F CAA reference manual P2346E Rev I Mar 15 2 1 Alstom Signaling Inc CAAPE Package The following record marks the start of the NVS Communication Section and is usually placed at the start of the application s serial communication file whose extension is CSS formerly COM with earlier versions of the CAA compiler SERIAL COMMUNICATIONS SECTION or CSEX CODE SYSTEM SECTION The second record format applies to a specific hardware platform CTC2 in a VPI and is functionally equivalent to the NVS Communication Section record The following record marks the beginning of the NVSoe Communication Section and is usually placed at the start of the application network serial communications file with extension NSS NETWORK SERIAL COMMUNICATIONS SECTION The
76. d Address In Received Msg Channel 2 Transmitting Data Channel 2 Valid Address Message Received Channel 1 Error In Received Message Channel 1 Invalid Address In Received Msg Channel 1 Transmitting Data Channel 1 Valid Address Message Received Common CPU Is Running N A System 5V Power O Testpoint 9 LEDs Figure 5 6 CSEX2 Board Edge P2346E Rev I Mar 15 5 12 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 2 5 CSEX3 Board Refer to Alstom publication P2086B for details on the CSEX3 Board P N 31166 175 XX hardware Refer to the online help of Alstom s CAAPE software package for a detailed explanation of the generation and compilation of a non vital application for the CSEX3 hardware platform Table 5 11 through Table 5 21 define the various jumpers and switches available on the CSEX3 board Refer to Figure 5 7 and Figure 5 8 for the location of these jumpers and switches and of the on board LEDs and other essential components CMOS versions of the Flash memory devices 29F040 are used where available 7Ons or faster Table 5 11 CSEX3 MAC Port Power Selection Jumper Function MAC port power disconnected normal operation 1 2 MAC port power connected HHT use only Table 5 12 CSEX3 MAC Port Receive Data Source Selection Switch Receive Data Source Front of board DB 9 connector J3 B Backplane connection Table 5 13 CSEX3 Watchdog Selection Jumper Nor
77. dentify each new message and SOURCE and DESTINATION records to provide a text name for the message sender and receiver The CAAPE processes a message only if the SOURCE or DESTINATION name matches the name specified in the CSEX or CTC2 ID record in the application s CSI file This method is most useful in a serial communications protocol such as DT8 PEER where both ends of the serial link could be CSEX boards A single Serial Communications file can be provided for all serial links and data is assigned based on the system currently being compiled Note For virtual serial connections a specific network port can be designated as SOURCE or DESTINATION by appending its number to the board s ID name For example network port 1 on the CSEX4 board with ID THIS CSEX4 can be identified as THIS CSEXA 1 in a SOURCE or DESTINATION record Each item in a message is referred to with the generic term parameter The application engineer assigns a name of 1 to 16 characters to each parameter P2346E Rev I Mar 15 2 8 Alstom Signaling Inc CAAPE Package 2 5 2 1 Control Definition Record The Control Definition record marks the start of the definition of an incoming message control giving the station address and message length The CAAPE processes this record and the message data records that follow it Below is the syntax for the Control Definition record followed by an example CONTROL CONTROL ADDRESS address LENGTH
78. displayed when Next or Last is selected The station information displayed includes Control and indication station addresses and the total number of binary bits in each address The length of each message control indication and special Each messages starting buffer address in RAM intended for Alstom technical personnel only The most recently posted control indication and special messages g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help Bw u mimi S e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port hRE Last Optns Msg Diags Reset TWC Vital Diags Station 1 Control address 08 00000001 Message length 320 Located at 2000 0D13 Last message posted 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 Indication address 08 00000001 Message length 320 Located at 3000 0DF5 Last message posted 4B 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A 03 4A03 4B 03 4B 03 4B 03 4B 03 4B 03 4B 03 Special message Message length 24 Located at 2000 0E80 Last message posted A4 OB 00 Display next station Figure 4 3 Emulation Menu View a Station s Messages P2346E Rev Mar 15 4 5 Alstom Signaling Inc Diagnostic and User Interface Figure 4 3 shows that the control address for station
79. dler Receiver Transmitter and Control See Table 3 10 for descriptions of each task s function Table 3 10 Data Flow Tasks Task Function O Handler Receiver Transmitter Control This task has two functions The first function checks the application logic buffer to determine when a new indication is ready If a new buffer is flagged as available by the application logic the buffer is copied into the next available hold buffer one of eight and the application logic buffer is acknowledged and released The second function checks for any messages in the hold buffers waiting to be sent If a message is waiting the task checks the transmit buffer for an outgoing message in progress If the transmit buffer is available the task formats the hold buffer into the appropriate message type and flags that the message is ready to be transmitted If no hold buffers are currently awaiting transmission and if the transmit buffer is empty the task checks for a text indication message If a text indication is found the task formats a text message and set the flags This task checks the incoming data stream for a message for this unit When a message with the proper station address is detected the message is checked for correct checksum and termination information When all criteria are met the message is passed to the application logic and flags are set to indicate the type of message received In Slave Mode the re
80. e buffer and potentially overwrite the information that was manually posted Figure 4 8 shows a screen if the Spc option is selected for a Special Message containing 24 bits 3 bytes Note Posting Special Message data in this manner causes changes to the operation of the system LJ CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help 55 al oi mm e e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Message Interface Post Disp Mode Exit WARNING OPERATION WILL BE ALTERED Enter message in HEX 3 BYTES New Byte 4EH _ gt CAP NUM SCRL Figure 4 8 Post a Special Message P2346E Rev I Mar 15 4 11 Alstom Signaling Inc Diagnostic and User Interface 4 3 5 2 Mode Menu The Mode menu choice provides several additional menu options that affect the format of control indication and Special Message data viewed from the Disp option After the display format has been set to Original New Hex Binary or Inverse message contents are automatically displayed and updated in real time as if the Disp option had been selected g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help a sola p ao ALSTOM SIGNALING Non Vital System Processor R Maintenance Systen Emulation Control Module Port Message Interface Disp Spel Exit New Hex B
81. e must match the address assigned to the remote Indication message The address assigned to a Text Control message must match the address assigned to the remote Text Indication message Asimple arrangement of assigning the same address value to all messages on both sides of a communication link is supported The only arrangements where different addresses are required are a multi slave Master node or a multi station Peer Sync node However it is recommended to assign a unique number to each Control Indication or Text Control Text Indication message pair This facilitates diagnosing communications problems when multiple station data exchange streams flow through the same communication link P2346E Rev Mar 15 3 7 Alstom Signaling Inc Theory of Operation 3 2 3 3 Split Bytes If a byte of data in a message s body is the same as a command byte ie has a value of xAn where nis any hexadecimal digit the data is sent as two bytes xAO followed by xOn This includes bytes in the CRC 16 checksum that can be part of the body As a result data byte xAB is sent as two split bytes xAO and xOB On reception the split bytes are recombined into a single byte In the diagnostic screens for DT8 the actual data byte and not the split bytes is shown 3 2 3 4 Message Types DT8 supports the following messages Acknowledge Poll Change Bitmap Request Bitmap A7 with Subcommand and Text The nomenclature in Table 3 3 describes the mes
82. e online help of Alstom s CAAPE software package for a detailed explanation of the generation and compilation of a non vital application for the CSEX4 hardware platform Table 5 22 through Table 5 28 show the jumper assignments for the CSEX4 Board All possible functions have a jumper installed even though the jumper may not make an electrical connection This is done to ensure that there is the correct number of jumpers six on the board at all times See Figure 5 9 for the location of the CSEX4 Board jumpers Table 5 22 CSEX4 Board Communication Processor PROMJet Selection Jumper TB Function TB1 Communication Processor PROMJet Header no jumpers TB2 Communication Processor PROMJet connection points 1 2 Table 5 23 CSEX4 Board Communication Processor Flash Write Selection Jumper TB3 Function 1 2 Communication Processor Flash PROM write enabled 2 3 Communication Processor Flash PROM write disabled Table 5 24 CSEX4 Board Battery Selection Jumper TB4 Function 1 2 Battery disconnected use this position for shipping and storage or if no battery is installed during operation 2 3 Battery connected do not use this position if no battery is installed P2346E Rev Mar 15 5 18 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 25 CSEX4 Board Main Processor Watchdog Selection Jumper TB5 Function 1 2 Main Processor enable watchdog re
83. e the sequence of data in the minutes through the time zone subcommands anywhere along the sequence In this case the terminator byte xA9 signals the end of the message Therefore the shortest possible message body excluding the Subcommand byte is second Cy Cy DT8 uses the date and time received in this message to update the component s real time clock RTC The RTC does not support the time zone so the non vital application must handle the time zone To use the time zone in an application the DT8 serial port must contain an additional station and its 8 bit address must be set to 0 zero This station s control and indication buffers must both be exactly eight bits long For more information on defining DT8 message buffers see SECTION 2 CAAPE Package DT8 automatically initializes these buffers to xFF Upon receipt of the time zone in a Date Time Update message DT8 stores the 8 bit one byte time zone value to this station s control buffer for use by the application logic For the time zone to be sent in a transmitted Date Time Update command the application logic must store the desired time zone value in this station s indication buffer before the message is sent When DT8 transmits a Data Time Update command it compares this station s indication buffer to xFF If it is equal to xFF no time zone value is included in the message Otherwise whatever value is found in the buffer is sent as the time zone Note The master i
84. eginning with parameter 1 is TFFFFFFF TFFFFFFF FTFFFFFF FTFTFFTF P2346E Rev I Mar 15 4 19 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 4 Local Menu The Local menu choice displays the current DT8 operating mode Peer Master Slave or Sync The user can change the local unit s mode of operation LI CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help lmagan R gt aulam alao ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Current Setting is Synchronous Synchronous car num scat 7 Figure 4 15 Local Screen P2346E Rev Mar 15 4 20 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 5 Timers Menu The Timers menu choice allows the user to view and change the interval timers Note The AD Time Interval is called the AE Time Out elsewhere in this manual CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help Jman R l alam sl e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Message Timeout ms 5000 RTS to CTS Maximum Delay ms Poll Time Interval ms 250 Hold RTS Time Interval ms 10 Ad Time Interval In Seconds Msg Rts Cts Poll Hold Rts AD Poll cap NuM scat 7 Figure 4 16 Timers Screen P2346E Rev Mar 15 4 21 Alstom Signal
85. eriodically change state turn on and off the following conditions are possible the communication channel has failed the state is the same for each message the port used by the NVIP module is not being addressed there is a wiring or connection problem to the remote module the remote module is turned off Serial Ports 1 and 2 have a group of four LEDs controlled by the CenTraCode II System Software and the protocol emulation that are used to indicate reception and transmission of messages The other serial ports LEDs are controlled by the CenTraCode Il hardware and only indicate character input output on a given port CSEX3 boards include a 2 character diagnostic display whose function is controlled by an on board diagnostic switch The function code shown on the diagnostic display must read 00 in order for the serial port LEDs to operate as described below If the diagnostic display does not show 00 the display and the LEDs are being used for a diagnostic function or the display is indicating the occurrence of a system error A serial port LED is turned on to indicate the reception of a message and another LED indicates message transmission If the LEDs do not periodically change state turn on and off the communication channel has failed the state is the same for each message or this unit is not being addressed A receive error LED is lit when an error is detected Table 4 8 summarizes the various communication LEDs c
86. ess wherein the address is expressed in two parts the segment ssss and the offset 0000 For example the physical hexadecimal address C045A is entered as C045 000A Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Definition Interface The equipment that enables one kind of hardware to be recognized and processed by another kind of hardware Interrupt A computer instruction that causes the computer to stop the current process and perform a time sensitive task before resuming the interrupted process Invoke To activate a function process program or routine iVPI Abbreviation for integrated Vital Processor Interlocking part of Alstom s family of Vital and non vital interlocking processors Jumper A device that closes a circuit specifically a short length of wire or a plastic covered metal block that is pushed onto two pins to complete the circuit Latched A mode of operation for a circuit in which an output even a momentary one is maintained on Log To record an event in system memory often with a time stamp LPC File A Local Port Configuration File containing user defined settings for a communication protocol assigned to a serial port ona CenTraCode II board MAC Abbreviation for Maintenance Access and refers to the MAC port connector on the CenTraCode II processor boards Menu A set of user options offered on a single CenTraCode II Menu
87. etails on defining DT8 message buffers Note When multiple stations are used on a single Sync link the Indication messages are sent out one at a time with the subsequent message not sent out until an acknowledgment for the previous message arrives Therefore when changes occur in data for multiple stations simultaneously the time to transmit all messages is increased by the amount of time it takes the opposite side of the link to validate all messages and issue acknowledgments Only indication messages are affected by this restriction incoming control messages for all stations continue being processed normally including issuing the acknowledgment messages The link activation and maintenance algorithm is improved When link is not active a poll xAB message is issued every 10 seconds Alink becomes active when a poll xAB is received or when an acknowledgment to a transmitted poll is received While link is active each message is retransmitted up to a configured number of times Sync Message Limit at configured intervals Message Timeout and link is declared lost after the last retransmission times out The link activation occurs separately for each station however loss of link on any station due to retransmission timeout causes links for all stations to be dropped When a poll xAB message is received or when a link becomes active all queued change indications are discarded and a full current bitm
88. f controls and indications By employing simple Boolean equations and or advanced programming features the user can pre process controls from the office and indications from the field The user can validate distribute or share controls among physical outputs Users can also send indications to the office or transfer them as controls to outputs Using the CAAPE the application engineer can specify and configure message framing data transmission rates station addresses number of control indication bits and mode of operation For each field station the application engineer uses the CAAPE to define site specific message buffers Refer to SECTION 2 CAAPE Package for CAAPE details DT8 timing and configuration parameters are adjusted by using the Local Port Configuration LPC editor provided with the CAAPE No mechanical adjustments are needed P2346E Rev I Mar 15 1 3 Alstom Signaling Inc General Description 1 4 SUPPORTED HARDWARE PLATFORMS DT8 can be configured on any of the available non vital serial NVS ports provided by the wayside non vital processing component DT8 can also be configured for non vital serial over Ethernet ports NVSoE For a complete list of ports and their functions see the system manual for the corresponding platform Table 1 1 identifies some of the compatible supported platforms Platform VPI Table 1 1 DT8 Compatible Supported Platforms Description VPI can be composed of the following
89. ge usually near the start that defines the message type Compile In reference to Alstom s CAAPE software package a user initiated process in which the CAAPE evaluates logic statements in a non vital application and produces machine readable code for programming into an EPROM for execution by the CPU Component In reference to Alstom s CAAPE software package a separate distinct unit that comprises a portion of a non vital application a portion of hardware on a circuit board Configuration A specific combination of user defined settings Control Any message received at a communication protocol s serial port an incoming message Contrast with Indication Corruption The mutilation or perturbation of data caused by a hardware or software failure P2346E Rev I Mar 15 Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Counter CPU Definition An upwards counting value often maintained by protocol emulation used to report the number of times an event occurred such as reception of a certain message type Abbreviation for Central Processing Unit the computer section that handles the actual processing of computer instructions CRC Abbreviation for Cyclic Redundancy Check an error checking technique used to ensure the accuracy of transmitted serial data over a communication channel CSEX CTC2 Abbreviation for Code System Emulator Extended
90. gnores the Date Time Update command when it is received in Master Slave Mode A master can update a slave s clock but a slave cannot update a master s clock Date Time Update commands can be sent between peer units The following is an example Date Time Update command sent on 7 13 2001 at 11 29 57 from time zone 23 A7 00 00 39 1D OB OD 07 01 14 17 c c A9 This example is an All Stations broadcast message the station address is 0 P2346E Rev Mar 15 3 13 Alstom Signaling Inc Theory of Operation 3 2 3 5 2 Subcommand x01 Request Date Time Update When the non vital application logic requires a Date Time Update only a slave station in Master Slave Mode sends this message To send this message the application logic must set a Special Message Flag After the flag is set and the next poll message is received from the master DT8 sends a Request Date Time Update message In this case a pending indication change takes precedence over sending the Request Date Time Update This message contains no data components therefore the complete message is xA7 st 01 xA9 for example A7 02 01 c c A9 Table 3 6 summarizes the Special Message Flags used in conjunction with the xA7 Subcommands The flag names in the table are recommendations only The Application Engineer is free to use any appropriate parameter names The Set By and Cleared By columns indicate whether the non vital application NVA logic or the DT8 protocol is respo
91. hart P2346E Rev I Mar 15 3 23 Alstom Signaling Inc Theory of Operation CLEAR LOCAL APPLICATION MESSAGE BUFER iaces BUILD A BIT MAP APPLICATION INDICATION MESSAGE AV AILABLE SET FLAGS FOR TRANSMIT COPY APPLICATION BUFFER MESSAGE AVAILABLE TO LOCAL BUFFER AND RELEASE APPLICATION BUFFER COUNT NUM BER OF CHANGED BYTES IN NEW INDICATION BUILD A MORE THAN HALF CHANGE MESSAGE TOTAL BUFFER BYTES Figure 3 8 Indication Message Data Flowchart P2346E Rev Mar 15 3 24 Alstom Signaling Inc Diagnostic and User Interface SECTION 4 DIAGNOSTIC AND USER INTERFACE 4 1 INTRODUCTION This section discusses the protocol specified diagnostic functionality implemented by the DT8 protocol For further information about the diagnostic and user interface of the wayside non vital processor components refer to the system manuals NWARNING NON VITAL COMMUNICATIONS SOFTWARE IS NOT FAIL SAFE The non vital communications software is not designed for fail safe application and must not be used for safety critical operations Failure to comply can degrade the safety performance of the train control system resulting in property damage injury and or death due to train collision or derailment 4 2 MAC PORT FUNCTION The MAC port provides access to the menu driven displays of a wayside non vital processor component Some of these menus are used to report system status while others are used for manual con
92. he top priority timer If the Message Timeout Interval is satisfied meaning a valid response is received before expiration of this timer the Quiet Poll Interval finishes timing out and then the next slave station in the sequence is polled While waiting for the Quiet Poll Interval to time out so that the next slave station can be polled DT8 checks for changes to controls for all slave stations If a change is detected DT8 immediately sends a Change message to the appropriate slave station before resuming the polling sequence This sequence is illustrated in Figure 3 2 through Figure 3 6 The two timers are shown by using the following line types Message Timeout Interval Quiet Poll Interval Figure 3 2 shows the poll that is not responded to thus causing the Message Timeout Interval to expire and the next slave station in the sequence to be polled AB 01 A9 AB 02 A9 Figure 3 2 Message Timeout Interval and Quiet Poll Interval Diagram Figure 3 3 shows a poll and the reception of an acknowledge before the expiration of the Message Timeout Interval allowing the Quiet Poll Interval to take over When the Quiet Poll Interval expires the next slave station in the polling sequence such as 2 is polled AB 01 A9 AB 02 A9 AA 01 A9 Figure 3 3 Quiet Poll Interval Takes Over Figure 3 4 shows the same sequence as in Figure 3 3 except a change message is detected for station 3 The Change message is sent to station 3 it
93. if the Post option is selected for a control message containing 16 bits 2 bytes Note Posting control data in this manner causes changes to the operation of the system P2346E Rev Mar 15 4 8 Alstom Signaling Inc Diagnostic and User Interface CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help j magns Ra x dl am ale O ALSTOM SIGNALING Non Vital System Processor R Maintenance System Enulation Control Module Port Message Interface Disp Spcl Mode Exit Only 96 bits may be posted gt CAP Num scRE 7 CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help 2 lgiEmm wex al amm aal e O ALSTOM SIGNALING Non Vital System Processor R Maintenance System Enulation Control Module Port Message Interface Disp Spcl Mode Exit WARNING OPERATION WILL BE ALTERED Enter message in HEX 12 BYTES New Byte 4EH _ gt cap num scat 7 Figure 4 6 Post a Control Message P2346E Rev Mar 15 4 9 Alstom Signaling Inc Diagnostic and User Interface 4 3 5 Disp Menu The Disp menu choice displays the data portion of messages posted between the protocol emulation and the non vital application logic updated in real time Figure 4 7 shows a typical screen when the display format is set to Original g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload
94. ignaling Inc Hardware Description and Troubleshooting Guide CSEX3 CSEX4 NVSP boards include a 2 character diagnostic display whose function is controlled by an on board diagnostic switch The function code shown on the diagnostic display must read 00 in order for the serial port LEDs to operate as described below If the diagnostic display does not show 00 the display and the LEDs are being used for a diagnostic function or the display is indicating the occurrence of a system error A serial port LED is turned on to indicate the reception of a message and another LED indicates message transmission If the LEDs do not periodically change state turn on and off the communication channel has failed the state is the same for each message or this unit is not being addressed A receive error LED is lit when an error is detected Table 5 1 summarizes the various communication LEDs controlled by CTC2 with DT8protocol In the discussion of each board type an illustration of the board edge including LED labels is included For a further explanation of LEDs used for troubleshooting CenTraCode Il systems refer to the following Alstom publications P2086B VPI vital Processor Interlocking Control System Operation and Maintenance Manual Volume 1 e P2511B VPI II Vital Processor Interlocking Il Control System Operation and Maintenance Manual Volumes 3 4 and 5 e P2521B iVPI integrated Vital Processor Interlocking Il Control System Operati
95. iguration If NVSoE is chosen then the network port number for the local port is chosen from a predefined list by the application compiler the CAA if Manual is chosen then the port number can be manually entered NVSoE Legacy is similar to NVSoE in determining how port numbers are selected but is not recommended for use in new applications 3 NVSoE Legacy is no longer used and may be removed from future versions of CAAPE P2346E Rev I Mar 15 B 5 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup If Manual is chosen it is recommended to use a high port number to avoid existing registered port numbers something in the 50000s would be okay this is the range that is used for predefined ports if NVSoE is chosen as the Type in the Network Port dialog Note that if the NVSoE node is being set up as a client then it is required that the Network Port Type be set to NVSoE This permits an ephemeral port to be selected for the client during operation as required by the client server protocol If a manual port number is entered for an NVSoE client node this will prevent the NVSoE connection from being established B 1 4 Links Setup On the NVSoE tab Figure B 2 the Links button is clicked to bring up the Links dialog The Network tab on the Links dialog Figure B 5 permits viewing and setting up the IP addresses and ports if required for the remote device associated with each NVSoE node th
96. iguration file CONFIGURATION FILE filename filename is the complete path and filename of the user configuration file usually with an LPC extension For example CONFIGURATION FILE D CONFIG DT8_USER LPC Operating This record determines the electrical mode of serial port 1 or 2 of the Mode CSEX3 CSEX4 NVSP board This record is only valid for serial ports 1 and 2 of a CSEX3 CSEX4 NVSP board or a warning is generated when the application is compiled and the record is ignored If this record is omitted the default operating mode is RS 232 This record is not used in the Network Serial Communications section OPERATING MODE type type specifies the type of electrical connection for serial port 1 or 2 of the CSEX3 CSEX4 NVSP board Valid entries are RS 232 RS 422 and RS 485 For example OPERATING MODE RS 422 P2346E Rev Mar 15 2 5 Alstom Signaling Inc CAAPE Package Table 2 2 Serial Network MAC TCP Port Record Descriptions Cont Record Description Default Baud Rate Baud Rate This record identifies the baud rate for serial communications on the port If this record is omitted the rate is 1200 baud This record is not used in the Network Serial Communications section DEFAULT BAUD RATE rate rate is the baud rate 75 110 150 300 600 1200 2400 4800 9600 19200 38400 or 57600 38400 and 57600 baud are valid for CSEX3 CSEXA NVSP boards
97. in which only a single networked device can send data at a given time The use of hardware electrical signals typically Request To Send RTS and Clear To Send CTS to control the flow of serial data typically through a modem Any of the machinery the makes up a digital computer installation includes the circuit boards therein A hardware component containing multiple pins wires onto which jumpers can be placed for board configuration Hexadecimal A number base containing sixteen digits O through 9 and A 10 through F 15 commonly used to represent bytes of data stored in a computer HHT Indication Initialization Abbreviation for Hand Held Terminal a small video display device that provides limited system diagnostics Any message sent out a communication protocol s serial port an outgoing message Contrast with Control A process usually performed at startup that resets all of a system s operating parameters to preset default values Input Output I O The process of transmitting information from an external source such as counters switches and addresses to a system or from a system to an external source Install The act of assigning a communication protocol to a specific CenTraCode II serial port usually done as part of the design of a non vital application Intel Hex Address Notation P2346E Rev I Mar 15 A specific format ssss 0000 for entering a system memory addr
98. inal to view the Main Menu Check the baud rate of the VT100 terminal typically is 9600 baud Review the list of CenTraCode system errors that can be displayed at the MAC port diagnostic menu by the self checking mechanism built into the CenTraCode System Software P2346E Rev I Mar 15 5 30 Alstom Signaling Inc CENTRACODE I SAMPLE CAAPE INPUT FILE APPENDIX A CENTRACODE II SAMPLE CAAPE INPUT FILE A 1 GENERAL This section contains an input file to illustrate the inclusion of DT8 in a CenTraCode II non vital application This appendix contains two samples Asample Serial Communications Section typically found in a non vital application s CSS file to illustrate the use of CAAPE records for the inclusion of the DT8 protocol in an application Asample Network Serial Communications Section typically found in a non vital application s NSS file to illustrate the use of CAAPE records for the inclusion of a NVSOE port running the DT8 protocol in an application P2346E Rev Mar 15 A 1 Alstom Signaling Inc A 2 CENTRACODE II SAMPLE CAAPE INPUT FILE CSEX CSEX2 CSEX3 SAMPLE INPUT FILE k k lt lt k k kCk ck k k ck amp lt ck k k ck ck k k ck ck lt k ck k amp k k k ck ck ck k k amp ck k k ck amp amp k k ck amp k ck k ck ck k k ck k ck k k ck k k k k lt X lt FILE COMMUNICATIONS DataTrain VIII SAMPLE CSS INPUT FIL LH EMULATI
99. inary Inverse Exit_ Show screen in old format gt Figure 4 9 Select the Message Display Format P2346E Rev Mar 15 4 12 Alstom Signaling Inc Diagnostic and User Interface Table 4 2 describes the various display formats available from this menu Option Original Table 4 2 Select the Message Display Format Description Restores the display format to the default setting In this format data for a single station is shown as a series of hexadecimal bytes wrapping between lines on the display based on the message lengths for controls indications and Special Messages New Hex Binary Inverse In this format message data is shown 24 hexadecimal bytes at a time from left to right on a single line per station for up to four stations with the station number shown at the start of each line of data Multiple stations data up to four are shown on subsequent lines as needed If a message control indication or Special exceeds 192 bits 24 bytes use the V increment byte numbers and B decrement byte numbers keys to bring additional data bytes one at a time into view At most 24 bytes of a message s data can be viewed at a time in this format If more than four stations are defined on the port press G Space Bar to view data for additional stations Press the H key to bring the display back to the first station first byte setting This display format is similar to New Hex except that message d
100. ing Inc Diagnostic and User Interface 4 3 6 6 Flags Menu The Flags menu choice allows the user to view and change the settings of flags used by DT8 for the handling of the RTS and CTS control lines g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help Bagara lt dlam F GO ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Multi drop flag is False Cts Flag is False Rts Invert flag is False Invert Cts flag is False e Poll flag is False Buffer outflag is True Cts Rts Invert Invert Cts Buffer Ouput Ae poll cap Num CRI _ Figure 4 17 Flags Screen P2346E Rev Mar 15 4 22 Alstom Signaling Inc Diagnostic and User Interface 4 3 7 Data Monitor Screen The Data Monitor Screen is viewed by selecting Monitor from the Main Menu Use the data monitor to observe message traffic on one or more code line ports Selection Path e Main Menu Monitor Port port selection from 1 to 5 g CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help Jz m Emm ws a lamimim amp e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Monitor Module Scroll ON Serial messages REMOTE Other messages OFF Ports 6 i Port EXIT R AE OC A8 05 A8 05 A8 05 A8 05 8 05 AS 05 A8 05 AS 05 AS 05 AS OS AS 05 A8 0 5 A8 05 A8 05 A8 05 A8
101. interfaced with either Serial Port 1 or 2 since other CenTraCode II ports do not support the modem control lines RTS and CTS Along the same lines the RTS and CTS signals can be required for handshaking with the modem when operating in Slave Mode In the event of problems with the code line verify all wiring to the code unit according to the location s wiring diagrams It can be useful to connect a protocol analyzer for example the Hewlett Packard HP4957A to the digital interface of the Data Communications Equipment DCE and obtain a recording of control and indication messages Examine the recording to determine the integrity of the messages and to insure that the appropriate communication parameters are being used for example Quiet Poll Interval and Hold RTS Timer Table 5 39 is a general troubleshooting guide for the CenTraCode ll systems Table 5 39 CenTraCode Il Troubleshooting Guide Observation Possible Cause All LEDs are off Improper 5V 0 25V system power Status of LEDs does not change Code line interface or code line problem Communication port interface problem A serial port s Valid Address LED does Improper CAA application configuration not light the station address is not correct The Application Is Running LED does This LED should be on to indicate that the not light application logic the site specific e CSEX CR14 program is running If this LED does not CSEX2 DS10 stay on the non
102. is corresponds to setup item 4 above When an NVSoE node has been defined by setting its properties as described above then a line is added to the list of links shown on the Network tab in the Links dialog with missing information for the remote end of the connection The Name column identifies the system board and NVSoE node to which the particular row applies Right clicking on a row permits the remote information to be added Add edited Edit or removed Remove Add Edit or double clicking on a row brings up the Remote Connection Data dialog Figure B 6 to permit entering data for the remote end of the connection VSC Links Network Double or right click on a row header for Add Edit Remove Jona 1 NYSP AE11 NVSP1 1 2 NVSP AE41 NVSPI MACTCP MACTCP MMS MMS 11025211 32 s AETI NVSP21 INVSOE DTBSYNCClent AEB NV E 1 0 Custom 1025211 80 l NvsP AEM NVSP2 MACTCP MACTCP MMS MMS 102521132 255 255 255 Filter All Network Gateways Figure B 5 Links Dialog Network Tab P2346E Rev I Mar 15 B 6 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup x Protocol GLETSIT TSE E Remote Name EBE RemteNodel fT Connection T ype NYSOE 1 enett enet2 e Local Device ENET1 r Local Device ENET2 Local Subnet 10252110 Local Subnet 10252210 Subnet Mask 255 255 255 0 Subnet Mask 255 255 255 0 Gateway
103. ization and content Hexadecimal notation not BCD is used in A7 00 command Added DT8 over Ethernet and CSEX4 NVSP content removed CTC2s and CTC2v August 2012 Added Special Message Bit 5 and reconciled engineering comments JF LR MN March 2015 P2346E Rev I Mar 15 Updated 3 2 2 and added Appendix B SG Alstom Signaling Inc ABOUT THIS MANUAL The information in this manual is arranged into sections The title and a brief description of each section follow Section 1 GENERAL DESCRIPTION This section provides general information about the DataTrain VIII DT8 protocol Section 2 CAAPE PACKAGE This section describes how the DT8 protocol is incorporated into a non vital application using Alstom s CAAPE software package Section 3 THEORY OF OPERATION This section describes the DT8 modes of operation Section 4 DIAGNOSTIC AND USER INTERFACE This section discusses the protocol specified diagnostic functionality implemented by the DT8 protocol Section 5 HARDWARE DESCRIPTION AND TROUBLESHOOTING GUIDE This section describes the hardware platforms on which DT8 operates and troubleshooting information Appendix A CENTRACODE II SAMPLE CAAPE INPUT FILE This section contains an input file to illustrate the inclusion of DT8 in a CenTraCode II non vital application Appendix B NON VITAL ETHERNET NETWORK COMMUNICATION BACKGROUND AND SETUP This section provides backgro
104. k kk ck k k ck k ck k k ck ck ck ck k ck ck ck k ck k ck k k ck k k k kkkkk NETWORK SERIAL COMMUNICATIONS SECTION NETWORK PORT 1 TYPE DT8 PEER UNLATCHED CONTROLS CONFIGURATION FILE PEER DT8 LPC DESTINATION CTCID 1 SOURCE MAIN 3 NOTE FOR THE FOLLOWING MESSAGE TO BE COMPILED THE DESTINATION NAME MUST MATCH THE BOARD ID NAME SPECIFIED IN THE APPLICATION S CSI FILE MESSAGE ADDRESS 00000001 LENGTH 16 1 WORDIBIT1 2 WORDIBIT2 3 WORDIBIT3 4 WORDIBIT4 5 WORDIBIT5 6 WORDIBIT6 7 WORDIBIT7 8 WORDIBIT8 9 WORD2BIT1 10 WORD2BIT2 11 WORD2BIT3 12 WORD2BIT4 13 WORD2BIT5 14 WORD2BIT6 15 WORD2BIT7 16 WORD2BIT8 DESTINATION MAIN 3 SOURCE CTCID 1 NOTE FOR THE FOLLOWING MESSAGE TO BE COMPILED THE SOURCE NAME GI MUST MATCH THE BOARD ID NAME SPECIFIED IN THE APPLICATION S CSI FILE MESSAGE ADDRESS 00000001 LENGTH 24 1 WO A RDIBIT1 RDIBIT2 WORDIBIT3 RDIBIT4 RDIBIT5 RDIBIT6 RDIBIT7 IT OB WN O NA ANNANN P2346E Rev Mar 15 A 5 Alstom Signaling Inc CENTRACODE II SAMPLE CAAPE INPUT FILE 8 WORDIBIT8K 9 WORD2BIT1K 10 WORD2BIT2K 11 WORD2BIT3K 12 WORD2BIT4K 13 WORD2BIT5K 14 WORD2BIT6K 15 WORD2BIT7K 16 WORD2BIT8K 17 WORD3BIT1K
105. laces to enter corresponding IP settings for the remote devices that the selected local Ethernet devices will be connected to For example if NVSoE node 5 is set up to run over enet2 then the Remote Connection Data dialog provides a place to enter the Remote IP Subnet Mask and Port of the remote device that Local Device ENET2 will be communicating with In the Remote Connection Data dialog shown in Figure B 6 the selected NVSoE node has redundancy enabled so remote IP addresses masks gateways and ports can be entered for both Local Device ENET1 and Local Device ENET2 The Set Port s button brings up the Network Port dialog Figure B 4 that permits setting the port numbers for the remote device that this NVSoE node will communicate with If the local NVSoE node for this link is set up as a TCP IP server then this button is disabled the server determines the port number of the NVSoE client when it receives a message from the client If the local NVSoE node for this link is set up as a client then this button and the associated dialog box allow the port number of the remote server to be entered this corresponds to the bulleted item following setup item 4 In the Network Port dialog if Type is set to NVSoE then a predefined port number for the remote server will be used based on the Connection Type setting on the Remote Connection Data dialog Figure B 6 In this case it is required to know the NVSoE node number 1 through 10
106. length ADDRESS 00000110 LENGTH 72 In this example the address is decimal 6 six See Table 2 4 for descriptions of the Control Definition parameters Parameter address length Table 2 4 Control Definition Parameters Description The station address expressed in binary from 1 to 8 bits ordered most to least significant from left to right if omitted the address is set to zero or to the value read from on board switches The total number of parameters bits in the control message normally an even multiple of eight this is a required field P2346E Rev Mar 15 2 9 Alstom Signaling Inc CAAPE Package 2 5 2 2 Control Contents Record Multiple control message data records follow a CONTROL or MESSAGE record described later and name each parameter in the incoming control message The LENGTH specified in the preceding CONTROL or MESSAGE record determines the total number of control message data records One control message data record is required for each parameter in the control message Below is the syntax for the Control Contents record followed by some examples pos name 1 INPARM1 2 PERMZERO See Table 2 5 for descriptions of the Control Contents parameters Table 2 5 Control Contents Parameters Parameter Description pos The position of this parameter in the control message control message data must be numbered and named sequentially starting with positi
107. liary Board Communication Selection Switch SW1 Settings 5 15 Table 5 21 CSEXS 36 Pin P3 Auxiliary Board CSEX vs CSEX2 3 Switch SWZ Settings dope ina pe e Gece uhaq sua a Eau epe ae 5 15 Table 5 22 CSEXA Board Communication Processor PROMJet Selection Jine mia hanna rr 5 18 Table 5 23 CSEX4 Board Communication Processor Flash Write Selection JUMPE sAr na KA naa IU hee Ban beh RATAN Se hosts etn oe Ade 5 18 Table 5 24 CSEXA Board Battery Selection Jumper 5 18 Table 5 25 CSEX4 Board Main Processor Watchdog Selection Jumper 5 19 Table 5 26 CSEX4 Board Main Processor PROMJet Selection Jumpers 5 19 Table 5 27 CSEX4 Board ASIC Selection Jumpers 5 19 Table 5 28 CSEXA Board Main Processor Write Enable Jumper 5 19 Table 5 29 CSEXA Board Channel 1 Communication Standard Selection SA Ke hoe eect coh coa n ubera odo dece t tem EE RR CR at aXe DRE E RE 5 20 Table 5 30 CSEXA Board Channel 2 Communication Standard Selection Switch Settings 5 20 Table 5 31 CSEX4 Board MAC Maintenance Access RS 232 Port Connector PINPASSIGNMENIS sc 222 seed e bebo ken Itb eee Gas saa 5 20 Table 5 32 CSEXS Board MAC Port RXD Source Selection Switch Settings 5 21 Table 5 33 CSEX4 Board MAC Maintenance Access USB Port Connector Fili ASSIdnimertie s uoo ete aya Sus ha DUIS lee tobe EDS SETS 5 21 Table 5 34 NVSP
108. m resets the flag after the requested action has been completed If used the SPECIAL CONTROL record must follow the control and indication message definitions for a given station on a DT8 port and if multiple stations are defined precede the next station s message definitions Below is the syntax for the Special Control record followed by an example SPECIAL CONTROL LENGTH length SPECIAL CONTROL LENGTH 24 See Table 2 10 for descriptions of the Special Control parameter Table 2 10 Special Control Parameter Parameter Description length The total number of parameters flags in the Special Message buffer either 16 or 24 The ength must be 16 if using DT8 version F31 or earlier otherwise it must be 24 P2346E Rev Mar 15 2 15 Alstom Signaling Inc 2 5 2 7 Special Message Contents Record CAAPE Package Multiple Special Message data records follow the SPECIAL CONTROL record and name each parameter flag in the Special Message buffer The LENGTH specified in the preceding SPECIAL CONTROL record determines the total number of Special Message data records One Special Message data record is required for each flag in the Special Message buffer Below is the syntax for the Special Message Contents record followed by some examples pos 1 2 10 11 name BIT MAP IN CHANGE IN ACK IN POLL IN MAP REQ IN or 5 BIT MAP OUT CHANGE OUT ACK OUT POLL OUT MA
109. mal operation 1 3 Disable watchdog reset emulator use only Table 5 14 CSEX3 Battery Selection Jumper JP3 68 Battery disconnected storage 7 8 Battery connected normal operation P2346E Rev Mar 15 5 13 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 15 CSEX3 Application Switches Serial Port Switches 1 SW9 APP8 APP1 2 SW10 APP16 APP9 The operating mode for Serial Ports 1 and 2 is set in hardware using SW7 and SW4 respectively as shown in Table 5 16 and Table 5 17 For Serial Port 2 Table 5 18 details additional switches that are required In addition to these hardware switches specify the operating mode in the non vital application as explained in Section 2 5 Table 5 16 CSEX3 Serial Port 1 Communication Mode Switch SW7 Mode of Operation All Off RS 422 485 All On RS 232 Table 5 17 CSEX3 Serial Port 2 Communication Mode Switch SWA Mode of Operation All Off RS 422 485 All On RS 232 Table 5 18 CSEX3 Serial Port 2 DC Code Line Selection Switch SW2 SW3 SW5 SW6 Mode of Operation All positioned towards front of board RS 232 422 485 All positioned towards back of board DC Code line Table 5 19 CSEX3 Flash Enable Jumper JP3 Mode of Operation 1 3 Flash Write Always Disabled 3 4 Flash Write Always Enabled 2 4 Flash Write Enabled by TP5 Only P2346E Rev Mar
110. municate with the remote unit Receiving This LED flashes illuminating steadily during the time the serial Response communication port receiver is communicating with the remote unit Table 5 3 Communication LED Functions CSEX4 and NVSP Ports 1 and LED Transmitting Response Receiving Response P2346E Rev I Mar 15 2 for Standard DT8 Protocol Description This LED flashes illuminating steadily during the time the serial communication port transmitter is attempting to communicate with the remote unit This LED flashes illuminating steadily during the time the serial communication port receiver is communicating with the remote unit 5 3 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 2 2 Data Format It is important to know the differences between what appears on an oscilloscope and information presented by a protocol analyzer or in CenTraCode II MAC port diagnostic screens Figure 5 1 shows that a swapping of positions occurs between the least significant and most significant bits when viewed by an analyzer or on a diagnostic screen It illustrates the format of a serial character containing 1 start bit 8 data bits 1 parity bit and 1 stop bit The number of data bits in a character is user configurable to be 7 or 8 the parity bit can be disabled and the number of stop bits can be set to 1 or 2 Each serial character s data bits are logically grouped into two hexadecimal digits
111. n the Network tab of the CSEX4 NVSP board window in CAAPE Figure B 2 either or both of the two available Ethernet devices can be enabled via Enable checkboxes for each device If an Ethernet device is enabled via its checkbox an IP address and subnet mask is entered by clicking the Properties button associated with each Ethernet device This establishes the local IP addresses associated with this particular board The addresses chosen for a particular board must be unique within their subnets Note that these local IP addresses apply to all NVSoE nodes running on this CSEX4 NVSP board If redundancy is desired to be available for NVSoE connections the Redundancy checkbox must be checked This allows both Ethernet devices to be used to provide a redundant NVSoE connection with a remote device a redundant NVSoE connection sends the same message over both Ethernet connections with the receiving end discarding all duplicate messages This way if one of the two Ethernet networks is disrupted NVSoE communication will continue on the other Ethernet network With the Redundancy checkbox checked each NVSoE node can be set up to use or not use redundancy independently of the other NVSoE nodes NYSP 1 2 AE11 HDW Application Revision History Board Port 1 Port 2 Port 3 Diagnostics DataLog Network NV5cE Comm Software 40025 420 00 REV L 5 p Advanced Features f V Subnets Routing enet1 Comm Device 1 I REX Enable JV P
112. nce System Emulation Control Module Show Info Local Timers Flags Figure 4 12 DT8 Diagnostics Menu The following pages describe the options available in the DT8 Diagnostics Menu P2346E Rev I Mar 15 4 15 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 1 Counts Menu The Counts menu choice enables users to check the status of communication on the selected port This dynamically updated screen can be out of step with actual I O because of a particular combination of application choices Figure 4 13 shows a typical DT8 messages counts screen B5 CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help R x dalam alee ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module addr ain bin cin din ein aout bout cout dout eout ack c state 36 36 37 0 1 230 0 37 37 0 0 Show Info Timers Flags Show counts of messages Lal Figure 4 13 Messages Counts Screen P2346E Rev Mar 15 4 16 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 2 Reset Menu The Reset menu allows the user to reset the number of messages both sent and received back to zero after they exceed 255 Depending upon the operating mode of DT8 some of these counts can remain zero This action does not affect system operation Table 4 3 Key to DT8 Messages Counts Information Item Description
113. nd transmits the EIA232 standard and connects diagnostic equipment to the CSEX4 Board Switch SW1 determines whether the MAC ports RXD signal is accessible through the DB 9 connector or through P2 and P3 on the backplane for a permanent diagnostic connection A status LED provides the USB connection status Table 5 32 describes the switch settings to select between front and back MAC port access Table 5 31 describes the MAC RS 232 port connections while Table 5 33 describes the MAC USB port connections Table 5 31 CSEX4 Board MAC Maintenance Access RS 232 Port Connector Pin Assignments Pin Function J3 1 J3 2 RXD receive data J3 3 TXD transmit data J3 4 J3 5 ISOCOM isolated common J3 6 J3 7 J3 8 J3 9 P2346E Rev Mar 15 5 20 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 32 CSEX3 Board MAC Port RXD Source Selection Switch Settings F Front of board DB 9 connector B Backplane connection Table 5 33 CSEX4 Board MAC Maintenance Access USB Port Connector Pin Assignments Pin Function J4 1 VBUS J4 2 D J4 3 D J4 4 COM J4 5 Shield J4 6 Shield P2346E Rev Mar 15 5 21 Alstom Signaling Inc Hardware Description and Troubleshooting Guide fore SELARI CSEX4 ce Eats eg SW9 SW10 Board Configuration E qo specified to the application software N CSEX4 31166 417 XX 422 485 CHI g Ei
114. ni Soe ae sha a ded sd ati ge ke feet A HC eR 5 1 aha BUAN x u Lau fotu dor ad QU op ap Te S one LOR LD dM ae PAPA 5 1 5 2 Diagnostic BEDS ica eno ios oa cee oe ebay le oe Eod ere Se ees 5 1 5 2 2 iData Format sse x e RE Marla BA Ww ord DAE ta 2 e CASE ntt 5 4 Rien GSE Board i etka Ruy ne Dat pai a ha au RS iN E IN ILES 5 5 Sod GOES Boardi podia adn i dO dS ULO LAN bel eva Wha WM d Rae hace ENS 5 9 52 5 GSEAS BOSE Su pasu dw dene Sacer bod ad a ee Nar oe as 5 13 bob GOSEXTBOSIO ma 2 occu e Dh EIE ES ola Wan X a RIPE EEES 5 18 Ba UM Oe sO AIC ih oer lye t ra cen ut react deba Sont kaa Ebo Econ 5 24 5 3 TROUBLESHOOTING GUIDE 5 29 APPENDIX A CENTRACODE II SAMPLE CAAPE INPUT FILE A 1 Az General ee oy sc Lo as it eate ale e breed Oe coe p AE ER ares ato tt Moe miles A 1 APPENDIX B Non Vital Ethernet Network Communication Background And Setup B 1 Bal NVSoE Networking B 1 B 1 1 TCP IP Client Server Networking and NVSoE B 1 B 1 2 Local IP Address es nnna e po tib es dee E eee eae SURE B 3 B 9 INVSOE SEP os ip de Su misse oir Od abo dio EE hit B 4 Bl ENKS c Soll uasa 22 x MEER ER QUE a odd de ied B 6 B 2 TCP IP Client Server and Protocol B 9 P2346E Rev Mar 15 iii Alstom Signaling Inc LIST OF FIGURES Figure No
115. nsible for setting to 1 or clearing to 0 each Special Message Flag Setting a Special Message Flag by the NVA instructs the DT8 protocol to perform a one time action such as transmitting a Request Date Time Update message Conversely DT8 sets a Special Message Flag to inform the NVA of an event such as the receipt of a Date Time Update message Table 3 6 Special Message Flags Used With xA7 Commands Bit Flag Name Set By Cleared By Description 17 SEND TIME REQ NVA DT8 Send Request Date Time Update message Subcommand x01 18 TIME REQ IN DT8 NVA Request Date Time Update message received Subcommand x01 19 SEND TIME NVA DT8 Send Date Time Update message Subcommand x00 20 TIME IN DT8 NVA Date Time Update message received Subcommand x00 P2346E Rev lI Mar 15 3 14 Alstom Signaling Inc Theory of Operation 3 2 4 Modes Of Exchange 3 2 4 1 Typical Peer Mode and Sync Mode Exchange The content that follows and Table 3 7 exemplify the interaction between two peer units when both units are exchanging messages and are operational This message interaction is typical of both Peer and Sync Modes in DT8 Table 3 7 shows a typical message exchange byte by byte between two peer units The table is read left to right and then top to bottom The office station starts operating and sends a bitmap message xAE The field station which is currently operating acknowledges xAA and then re
116. o 1 one to indicate that the slave station has not sent a valid response to the master Poll Enable This flag is used only in Master Mode to enable or disable the polling of slave stations If a slave station s Poll Enable flag is set the master communicates with the slave station If the flag is clear the slave station is dropped from the master s polling sequence If a Special Message buffer is defined and the Poll Enable flag is not actively used by the application it must be assigned a variable name and that variable must be set to PERMONE in a non vital equation in order for the master to poll the slave station Text received xAF 14 15 TEXT OUT SEND MAP P2346E Rev I Mar 15 DT8 NVA NVA DT8 Text sent xAF Send a bit map xAE Alstom Signaling Inc CAAPE Package Table 2 12 Special Message Flags Cont Cleared By With Slave if the application program requests a SEND MAP then the protocol clears the output buffer and sends the latest data 16 unused none none Should be set to PERMZERO Bit Flag Name Set By Description Note Special Message Flags 17 through 20 apply only when using DT8 version F32 or later on CSEX CSEX2 CSEX3 or when using DT8 version A1 or later on CSEX4 and NVSP 17 SEND TIME REQ NVA DT8 Send a request for date time update xA7 x01 18 TIME REQ IN DT8 NVA Request for date time update received xA7 x01 19
117. ode only In this case when Expedite Mode is turned on each slave s Change message or bitmap ends with an xA9 if no other changes are pending It ends with an xA8 when additional changes are queued and ready to be sent If the master responds with an Acknowledge ending with an xA9 the message exchange is terminated If the master s Acknowledge ends with an xA8 the slave is granted permission to send the next Change message immediately P2346E Rev I Mar 15 3 6 Alstom Signaling Inc Theory of Operation 3 2 3 2 Station Addressing DT8 allows a station s address to range from x01 to xFE An address of x00 zero is a special All Stations broadcast address used in xA7 messages only For more information see Section 3 2 3 5 Description of the xA7 Message Type Station Addresses are specified separately for each message assigned to a station Slave and Peer nodes support a single station which is a collection of different message types such as Control Indication Text Control Text Indication and Special Master and Peer Sync nodes support multiple stations Each station has a matching node on a remote side of a communication link a peer for Peer and Peer Sync nodes a Slave for Master nodes and the Master for Slave nodes The address assigned to each station message must match the address assigned to a corresponding station message on the remote side of the communication link Specifically The address assigned to a Control messag
118. of the CTS Flag Multi Drop Flag RTS to CTS Timer and Hold RTS Timer When DT8 is ready to transmit a message the system asserts RTS and starts the RTS to CTS Timer if the Multi Drop Flag is set If CTS comes true before the timer expires or if the timer expires without CTS coming true the system begins message transmission This assumes that the RTS to CTS Timer is set to a non zero value If its value is zero DT8 allows three seconds for CTS to come true before aborting message transmission If the CTS Flag is zero the state of CTS is ignored by DT8 After the message is transmitted DT8 starts the Hold RTS Timer When this timer expires FT8 de asserts RTS which presumably causes CTS to drop shortly afterward If the Hold RTS Timer is zero DT8 de asserts RTS immediately after transmitting the last byte of the message Note RTS and CTS signals are not present on the NVSoE ports The TCP IP communications layer handles the handshaking and synchronization transparently Message Sent x dJ C bi RTS to CTS RTS hold Figure 3 1 RTS CTS Timing Diagram P2346E Rev I Mar 15 3 19 Alstom Signaling Inc Theory of Operation 3 2 5 2 Message Timing in Master Slave Mode DT8 maintains two user configurable message timers in Master Slave Mode the Quiet Poll Interval and the Message Timeout Interval Both intervals timers start counting down upon transmission of the last byte of a poll The Message Timeout Interval is t
119. oll Flag False 0 0 False 1 True If this flag is false the asserted true level of the RTS control line is HIGH otherwise the asserted level is LOW The RTS Invert Flag must be set to true 1 for Ports 1 and 2 in RS 422 mode when using CSEX 1 or CSEX2 and set to false 0 for all other ports in RS 422 mode on these hardware platforms This stipulation does not apply to CSEX3 If this flag is false the asserted true level of the CTS control line is HIGH otherwise the asserted level is LOW If this flag is false a port defined as a master polls unresponsive slave stations with AD messages Bitmap Request otherwise it polls with AE messages Bitmap DT8 message types are explained in SECTION 3 Theory of Operation AE Timeout P2346E Rev I Mar 15 0 65000 In Master Mode the AE Timeout defines the number of seconds between each bit map If this timeout is not equal to zero a master station periodically transmits a Bitmap Request or a Bitmap depending upon the AD AE Poll Flag to slave stations Alstom Signaling Inc CAAPE Package Table 2 15 DT8 Configuration Settings Cont Protocol Setting Sync Message Limit Default Range Description In Sync Mode DT8 attempts to deliver a message or establish communication this many times before polling the remote peer every 10 seconds Output Buffer Enabled 1 0 Disabled 1 Enabled
120. on and Maintenance Manual Volumes 3 4 and 5 Table 5 1 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 1 and 2 for Standard DT8 Protocol LED Description Normal This is always dark and is not used by the DT8 protocol Receive Error This should be dark It illuminates when the protocol receives an unrecognized message format The LED stays illuminated until an Address OK or valid address message is received Invalid Address This LED illuminates when the protocol receives a valid message Received but does not match any assigned to this Port It remains illuminated until an Address OK or valid address message is received Transmitting This LED flashes illuminating steadily during the time the serial Response communication port transmitter is attempting to communicate with the remote unit Valid Address This LED illuminates when a complete and valid message is Received received and the address matches ones assigned to this port It remains illuminated until an Invalid Address is received or a Receiver Error is detected P2346E Rev Mar 15 5 2 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 2 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 3 4 and 5 for Standard DT8 Protocol LED Description Transmitting This LED flashes illuminating steadily during the time the serial Response communication port transmitter is attempting to com
121. on 1 one name The name assigned to the parameter usually a true false logic parameter for this position pos in the control message for use in the non vital application if this position is a spare bit it can be assigned the system reserved name PERMZERO For example 1 INPARM1 2 PERMZERO P2346E Rev Mar 15 2 10 Alstom Signaling Inc CAAPE Package 2 5 2 3 Indication Definition Record The Indication Definition record marks the beginning of the definition of an outgoing message indication giving the station address and message length The CAAPE processes this record and the message data records that follow it Below is the syntax for the Indication Definition record followed by some examples INDICATION ADDRESS address LENGTH length INDICATION ADDRESS 01101110 LENGTH 32 INDICATION ADDRESS 00000110 LENGTH 72 In the first example the address is decimal 110 See Table 2 6 for descriptions of the Indication Definition parameters Table 2 6 Indication Definition Parameters Parameter Description adaress The station address expressed in binary from 1 to 8 bits ordered most to least significant from left to right and usually the same as the CONTROL address if omitted the address is set to zero or to the value read from on board switches length The total number of parameters bits in the indication message normally an even multiple of eight this is
122. on queue O CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help m 5 s j mms e ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module din ein aout bout cout dout eout ack c state 79 79 79 0 1 231 rS Ka a n n en en en en cn en n n cn en cn cn can en Cn cn cn cn cn cen en en OT cn cn cn cn cn en en 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Show Info Timers Flags Show station information cap NUM scRt 7 Figure 4 14 Show Info Screen P2346E Rev Mar 15 4 18 Alstom Signaling Inc Diagnostic and User Interface The following information also appears in the Show Info Screen The current indication bit map as reported by the application logic 00 01 02 00 in 5 14 Next out identifies the buffer number 0 to 7 in the indication queue that the system transmits next buffer 3 in the example above Next use identifies the buffer number 0 to 7 that the system uses to build the next outgoing message buffer 5 in the example above The current contents of the eight deep indication queue The content of each buffer in the queue has either been sent or is waiting to be sent or has not yet been used If an asterisk precedes a buffer s contents the data is queued and ready to be sent pending or was sent but not yet acknowledged The column of numbe
123. onal data and address connections suitable for low level communications P2346E Rev I Mar 15 1 9 Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Definition DUART Abbreviation for Dual Universal Asynchronous Receiver Transmitter a device containing two asynchronous only serial communication ports Duplex See Full Duplex or Half Duplex DUSART Abbreviation for Dual Synchronous Asynchronous Receiver Transmitter a device containing two serial communication ports settable for synchronous or asynchronous operation Dynamic To update information as it occurs in real time EEPROM A device containing Electrically Erasable Programmable Read Only Memory that holds its contents without power Embedded Software contained within a sub component of a processor board usually stored on a programmable memory device such as a PROM and containing code executed by the CPU Emulation A computer program that mimics existing hardware or another Software software module to assure compatibility between two or more naturally different pieces of equipment usually used in reference to a software implementation of a communication protocol Emulator A device designed to perform the function of another Enable To allow turn on or otherwise activate for use EPROM Abbreviation for Erasable Programmable Read Only Memory a device that holds its contents without power and typically c
124. ontains firmware Event A notable occurrence usually the result of a change to a system parameter Execute To perform the instructions in a software program Field Location A set of equipment e g CenTraCode II controlled from the office and located along a railroad whose purpose is to operate a specific section of the railroad FIFO First In First Out Firmware Computer instructions stored on a programmable memory device such as an EPROM Flag A location in a computer s memory used to pass information between two software programs such as the protocol emulation and the non vital application logic Flags are used to indicate the current status of a system buffer such as buffer in use P2346E Rev I Mar 15 Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Flash Device Frame Full Duplex Definition A memory device whose contents code and data can be modified by the CPU by following a well defined and secure series of steps and are retained without power Information bracketed around a unit of data to signal its start and end In asynchronous transmission a frame consists of a start bit data bits an optional parity bit and one or more stop bits A serial communication mode in which networked devices can send data to each other at the same time Half Duplex Handshaking Hardware Header A serial communication mode
125. ontrolled by CTC2 with DT8 protocol In the discussion of each board type an illustration of the board edge including LED labels is included P2346E Rev Mar 15 4 26 Alstom Signaling Inc Diagnostic and User Interface Table 4 8 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 1 and 2 for Standard DT8 Protocol LED Description Normal This is always dark and is not used by the DT8 protocol Receive This should be dark It illuminates when the protocol receives an Error unrecognized message format The LED stays illuminated until an Address OK or valid address message is received Invalid This LED illuminates when the protocol receives a valid message but Address does not match any assigned to this Port It remains illuminated until an Received Address OK or valid address message is received Transmitting This LED flashes illuminating steadily during the time the serial Response communication port transmitter is attempting to communicate with the remote unit Valid This LED illuminates when a complete and valid message is received Address and the address matches ones assigned to this Port It remains Received illuminated until an Invalid Address is received or a Receiver Error is detected Table 4 9 Communication LED Functions CSEX 1 CSEX2 and CSEX3 Ports 3 4 and 5 for Standard DT8 Protocol LED Description Transmitting This LED flashes illuminating steadily during the time the serial Res
126. or to provide a rear chassis connection To do so place jumpers TB2 and TB4 at pins 4 6 instead of as shown in Table 5 7 Jumper TB5 is used to bring 5 Vcc to pin 1 of the MAC port connector J2 This option is used to provide power to a Handheld Terminal HHT Note If an HHT is not used with the CSEX2 board do not install Jumper TB5 Table 5 7 defines the jumper settings for specific MAC port modes Table 5 8 and Table 5 9 define the jumper settings for Port 1 and Port 2 serial communications and Table 5 10 shows how to set the jumpers for specific memory devices CMOS versions of these memory devices are used where available 150ns or faster See Figure 5 5 and Figure 5 6 for the location of these jumpers and of the on board LEDs and other essential components Table 5 7 CSEX2 MAC Port Jumpers MAC Port Mode RS 232 Current Loop D TB24 TB25 TB26 TB27 TB28 TB29 TB30 1 2 1 2 1 2 1 2 1 2 1 2 2 3 2 3 2 3 P2346E Rev I Mar 15 5 9 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 9 CSEX2 Serial Port 2 Communication Jumpers Mode TB7 TB15 TB16 TB17 TB18 TB19 TB20 TB21 TB22 TB23 RS 422 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 RS 232 2 3 N C 2 3 N C 3 4 N C 3 4 N C 3 4 3 4 DC N C N C N C 2 3 5 6 2 3 5 6 2 3 5 6 5 6 Place the CSEX2 battery board jumper at Position 1 2 prior to putting the board in ser
127. ort a number of non vital serial over Ethernet NVSoE connections Each NVSoE connection can be configured to use one of several protocols e g DT8 Genisys or Modbus However regardless of the selected protocol NVSoE communication employs a TCP IP client server arrangement An overview of TCP IP client server networking is presented below followed by the details of setting up NVSoE communication in CAAPE B 1 1 TCP IP Client Server Networking and NVSoE A given non vital processor board permits a number of virtual point to point NVSoE connections to be defined At present up to 10 NVSoE connections represented by NVSoE nodes numbered 1 through 10 are permitted for each CSEX4 or NVSP board in a system An NVSoE connection is a TCP IP client server connection one end of the connection is set up as a TCP IP server and the other end is set up as a client A TCP IP server provides services to one or more TCP IP clients The client initiates a transaction by communicating with the server Consequently the client must know how to get in touch with the server but the server does not generally know how to contact a particular client prior to receiving a message from the client In TCP IP terms the client contacts the server at a particular IP address using a particular TCP IP port number that is associated with the service that the client wishes to access on the server In its message to the server the client provides a TCP IP port number to
128. ponse communication port transmitter is attempting to communicate with the remote unit Receiving This LED flashes illuminating steadily during the time the serial Response communication port receiver is communicating with the remote unit Table 4 10 Communication LED Functions CSEX4 and NVSP Ports 1 and 2 for Standard DT8 Protocol LED Description Transmitting This LED flashes illuminating steadily during the time the serial Response communication port transmitter is attempting to communicate with the remote unit Receiving This LED flashes illuminating steadily during the time the serial Response communication port receiver is communicating with the remote unit P2346E Rev Mar 15 4 27 Alstom Signaling Inc Diagnostic and User Interface THIS PAGE INTENTIONALLY LEFT BLANK P2346E Rev Mar 15 4 28 Alstom Signaling Inc Hardware Description and Troubleshooting Guide SECTION 5 HARDWARE DESCRIPTION AND TROUBLESHOOTING GUIDE 5 1 GENERAL This section describes the hardware platforms on which DT8 operates and troubleshooting information This section shows layouts of the circuit boards with the positions of the LEDs Light Emitting Diodes identified along with other primary components Diagnostic LEDs are shown and application switches are explained as well as any user configurable hardware jumpers and switches on the supported hardware platforms In the tables showing jumper setting
129. processor boards CSEX CSEX2 or CSEX3 non vital processor board CSEX Code System Emulator eXtended Refer to Alstom Publication P2086B Volumes 1 and 2 for hardware information VPI II VPI Il can be composed of the following processor boards CSEX3 or CSEXA non vital processor board CSEX Code System Emulator eXtended Refer to Alstom Publication P2511B Volumes 1 through 5 for hardware information iVPI iVPI can be composed of the following processor boards NVSP non vital processor board NVSP Non Vital System Processor Refer to Alstom Publication P2521B Volumes 1 through 5 for hardware information P2346E Rev lI Mar 15 1 4 Alstom Signaling Inc General Description Serial I O Drivers MAC Port and Other Serial Ports Non Vital System Software CSEX4 and NVSP Interface to Comm Processor Alstom DataTrain VIII Protocol Emulation HATH Control Indication Special Other Alstom Protocol I I I I I Emulation s optional I I I I Interface Messages i Non vital I O gt A O gt Pa o X W 0o O eo gt LU o O N X Lu 0o O gt W 0o O CAAPE Generated Non vital Application Software Non vital Boolean Equations and Advanced Programming Features Tee TT DPRAM For Exchange of Vital Data Vital System Software CPU CPU PD CPUII or
130. re component containing multiple user settable switches for board configuration Synchronous Transmission of serial data in which clocking information is System Software transmitted along with the data Data are sent at a defined rate controlled by a timing source at the transmitter The full set of embedded operating code on a CenTraCode II processor board Task TCP IP Terminal Timer Traffic P2346E Rev I Mar 15 A computer program that is run as an independent unit see Multi Tasking Abbreviation for Transmission Control Protocol Internet Protocol a connection oriented protocol A video display device see VT100 Terminal A specific fixed time constant often user selectable used by the CenTraCode II System Software or the protocol emulation to time an event such as the assertion of RTS Transmit and receive activity messages occurring on a communication port over a period of time Alstom Signaling Inc General Description Table 1 3 Common Abbreviations and Glossary Cont Term Definition UART Abbreviation for Universal Asynchronous Receiver Transmitter a device containing one asynchronous only serial communication port UDP Abbreviation for User Datagram Protocol a connectionless Internet Protocol Unlatched A mode of operation for a circuit in which an output remains on for only a moment USART Abbreviation for Universal Synchronous Asynchronous Receiver Transmitter
131. rely using CAAPE graphical editing link the LPC component to the appropriate serial port in the system s hardware component The application s Make Files process converts the component to an LPC text file and creates the file reference If the application is created using manually edited text input files enter a CONFIGURATION FILE record as part of the serial port definition in the CSS file See the CAAPE s on line help for further details on creating and using LPC components P2346E Rev I Mar 15 2 29 Alstom Signaling Inc CAAPE Package THIS PAGE INTENTIONALLY LEFT BLANK P2346E Rev Mar 15 2 30 Alstom Signaling Inc Theory of Operation SECTION 3 THEORY OF OPERATION 3 1 GENERAL This section describes of DT8 modes of operation 3 2 APPLICATIONS 3 2 1 Protocol Description The DT8 communication protocol functions on any NVS or NVSoE port of the wayside non vital processor component See Table 3 1 for the modes of operation available in DT8 Table 3 1 DT8 Modes of Operation Mode Description Peer A pair of units connected at opposite ends of the code line where either can send data when necessary Neither unit is superior as opposed to a Master Slave configuration Sync Same as Peer Mode except in the event of communication failure Sync Mode supports multiple field stations in a single unit Master Any unit that is the master on a Master Slave line The master unit can speak at
132. ristics 2 5 2 5 1 Serial Network MAC TCP Port Records 2 5 2 5 2 Site Specific Message Definitions 2 8 2 5 2 1 Control Definition Record 2 9 2 5 2 3 Control Contents Record 2 10 2 5 2 8 Indication Definition Record 2 11 2 5 2 4 Indication Contents Record 2 12 2 5 2 5 Defining Control Indication Messages with SOURCE and DESTINATION BSGO US Z 2 5 tm CES EE ted ha ek anes 2 13 2 5 2 6 Special Control Record 2 15 2 5 2 7 Special Message Contents Record 2 16 2528 TOXDMOSSSUBS Zulu OS es SERA sth ace a EE e DES 2 21 2 5 2 9 Text Message Linking 2 22 2 6 Required DTS Support Files 2 23 27 Configuration Bakakeng bro Meee os sakaki S KANG a hac df kA 2 24 2 7 1 DT8 Configuration Settings 2 25 2 7 2 DT8 Configuration for Non vital Serial over Ethernet Connections 2 28 2 7 3 Windows Based CAAPE Graphical LPC Editor 2 29 SECTION 3 Theory of Operation 3 1 Sr GENERAL tira NG aac a E RIS a uU av icy Cure ut dI xis ved ts 3 1 S APPEIGATIONS u z usa u qana a au aaa oaa at d COE SA 3 1 3 2 1 Protocol Description
133. roperties IP Address fi 0 25 211 82 MACTCP Subnet Mask 255 255 255 0 Properties Links Subnet 10 25 211 0 Device ene Port vacr CP enet2 Comm Device r Data Log Retrieval Enable V IV Retrieved by MMS MACTCP enet IP Address fi 0 25 221 82 r Panel Messages Subnet Mask 255 255 255 0 Te Subnet fi 0 25 221 0 Controls Messages Figure B 1 CSEX4 NVSP Network Tab P2346E Rev I Mar 15 B 3 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup B 1 3 NVSoE Setup The NVSoE tab of the CSEX4 NVSP board window in CAAPE Figure B 2 permits up to 10 NVSoE connections to be configured In particular the NVSoE tab permits selecting the Ethernet device s for each enabled NVSoE connection and permits selecting whether the local end of the connection is a client or a server On the NVSoE tab the NVSoE pulldown Figure B 2 allows an NVSoE node numbered 1 through 10 to be selected for configuration After selecting a node number for configuration the Properties button is clicked to bring up the NVSoE Properties dialog Figure B 3 that permits setting up the networking properties for the node MB NYSP 1 2 AE11 HDW A Application Revision History Board Port 1 Port 2 Port 3 Diagnostics Data Log Network NVSoE rc Network Properties NVSoE s Device Properties Protocol lemove Client
134. rs from 0 to 7 indicates the buffer number in the queue and the hexadecimal bytes following are the contents of the indication bit map in each buffer In the Show Info Screen the indication data shown are bit inverted meaning that bits are in reverse order on a byte boundary as shown on a code chart In Table 4 4 the Code Chart line contains numbers assigned to an indication message s parameters in the application s communication file CSS Since indication parameters are organized in groups of eight the Hex Weight is the bit position in hexadecimal for each parameter in the message Example True False states for the sixteen parameters in the message are shown on the Bit State line Table 4 4 Bit Inversion of Displayed Indication Data Parameter Number in Application Input File Code Chart Code 112J 3 4 5 16 17 81 19110 11112 113 14 15 16 Chart Hex 01 02 04 08 10 20 40 80 01 02 04 10 20 40 80 Weight The hexadecimal value as shown in the Show Info Screen can be determined by taking the Hex Weight of each True bit and summing them for a given byte eight consecutive parameters starting with parameter 1 Given the parameter True False states shown above the hexadecimal values displayed in the Show Info Screen are x21 and x43 Using the data in Figure 4 15 for indication buffer 3 for example 01 01 02 4A it follows that the True False states of these 32 parameters b
135. s N C means No Connection in which case the jumper should be removed Reference publications for each hardware platform are identified Lastly a troubleshooting guide is provided 5 2 HARDWARE 5 2 1 Diagnostic LEDs To evaluate the operation of the hardware it is important to distinguish between indicators that verify normal operation and those that identify problems with communication Several LEDs on the front edge of CenTraCode II indicate board operation Each board except for CSEX 1 has an LED that is normally on during operation to indicate that the 5 V logic power supply is distributing power to the board A serial port LED is turned on to indicate the reception of a message and another LED indicates that a message is transmitting If the LEDs do not periodically change state turn on and off the following conditions are possible the communication channel has failed the state is the same for each message e the port used by the NVIP module is not being addressed e there is a wiring or connection problem to the remote module the remote module is turned off Serial Ports 1 and 2 have a group of four LEDs controlled by the CenTraCode II System Software and the protocol emulation that are used to indicate reception and transmission of messages The other serial ports LEDs are controlled by the CenTraCode II hardware and only indicate character input output on a given port P2346E Rev Mar 15 5 1 Alstom S
136. s must be on for error Messages messages to be displayed ANSI Mode ANSI display mode is turned on or off this is normally turned off Ports Reports message traffic for only the code line ports displayed When Scroll is on message traffic on the selected port s is displayed A descriptor indicating the type of message received or transmitted precedes each message Table 4 7 Data Monitor Message Descriptors oon Description ype gt T lt Transmitted message e g an indication gt R lt Received message e g a control gt P lt Received poll message Slave Mode only gt S lt Supervisory or status message gt CFG lt Received system configuration message ERROR The received message contained an error Communication problems can be monitored by using this screen and are evidenced by the display of error messages Note The Other Messages option must be turned on in order for error messages to be displayed by the data monitor P2346E Rev Mar 15 4 25 Alstom Signaling Inc Diagnostic and User Interface 4 4 PORT DIAGNOSTIC LEDS Several LEDs on the front edge of CenTraCode II provide visual indication of serial port operation This section describes the operation of these LEDs on serial ports that are configured to utilize the DT8 protocol A serial port LED is turned on to indicate the reception of a message and another LED indicates that a message is transmitting If the LEDs do not p
137. sDload File Device Actions Configure View Help m mm we a lamim ee ALSTOM SIGNALING Non Vital System Processor R Maintenance System Emulation Control Module Port Message Interface Disp Spcl Mode Exit V Left B Right G Up Down Home 01 02 03 04 05 06 07 08 Last control posted 11010001 00100000 11010001 00100000 11010001 00100000 11010001 00100000 Last indication posted 11010001 00100000 11010001 00100000 11010001 00100000 11010001 00100000 Last Special message posted 00100101 11010000 00000000 KI cap num scat 7 Figure 4 11 Display Messages Binary Format P2346E Rev Mar 15 4 14 Alstom Signaling Inc Diagnostic and User Interface 4 3 6 Diags Menu The Diags menu provides access to protocol specific diagnostic functions Figure 4 12 shows the DT8 Diagnostics Menu Note Some options in this menu allow the user to modify DT8 operating settings such as enabling or disabling the CTS Flag These settings are normally specified in the application s LPC file and affect operations Any changes made via the DT8 Diagnostics Menu are temporary only and is lost upon system reset If a user password has been specified in the non vital application it must be entered before modifying any DT8 operating setting 2 CSEX4 System App Processor Terminal Mode Com 10 connected AlsDload File Device Actions Configure View Help 2S A x Jal ee ALSTOM SIGNALING Non Vital System Processor R Maintena
138. sage content Table 3 3 DT8 Messages Message Description St The station address 1 to 4 bytes in length Bn The position of the byte in the control or indication buffer the 0 based relative index which contains the parameter that changed state The state of each control or indication parameter can be true which is a binary 1 or false which is a binary 0 Eight parameters are sent as a unit or a byte The true false states of the first eight parameters in a control or indication buffer are contained in byte 0 The states of parameters 9 16 are in byte 1 etc Each byte position known as Bn is paired with a byte value or Bi Bi The new value of the changed control or indication byte Bi is the state of eight control or indication parameters The state of the first parameter in a control or indication buffer is in the least significant bit of byte 0 The state of the eighth parameter is in the most significant bit of byte 0 Indicates that the message contains a variable number of byte pairs which is dependent on the total number of parameter changes bi x The value of byte x in the control or indication buffer comprising the state of eight control or indication parameters cl ch The low and high bytes respectively of the CRC 16 checksum XA9 xA8 The message s terminator byte It can be xA9 or xA8 which is only possible when Expedite Mode is turned on P2346E Rev Mar 15 3 8 Alstom Signaling
139. sage type requests and sends time and date synchronization information Each message type has its own variation in structure but all include a station address and a termination byte Subcommand Change Bitmap and Text messages also include a CRC 16 for the data portion of the message The Maintenance Access MAC port on the supported hardware platforms provides all access needed to the code unit A menu driven command interface is provided to clearly identify available commands and options P2346E Rev I Mar 15 1 2 Alstom Signaling Inc General Description 13 SOFTWARE OVERVIEW Wayside non vital processing components such as CenTraCode ll are emulators that directly replace code equipment and provides the data path to move controls and indications between office and field and vice versa The embedded wayside non vital processing component software provides a foundation for field input output I O operations serial communication data logging and diagnostic functions The software allows for real time concurrent operation of multiple communication protocol emulations such as DT8 The software incorporates an embedded diagnostic program that provides menu driven analysis of DT8 protocol communication The maintainer can access the diagnostic tools by connecting a VT 100 compatible terminal to the MAC port located on the Alstom wayside non vital processor The CAAPE software package provides the user with flexibility in the handling o
140. set normal operation jumper installed 2 3 Main Processor disable watchdog reset for emulator use only Table 5 26 CSEX4 Board Main Processor PROMJet Selection Jumpers TB Function TB6 Main Processor PROMJet Header no jumpers TB7 Main Processor PROMJet connection points 1 2 Table 5 27 CSEX4 Board ASIC Selection Jumpers TB Function TB8 ASIC Test Header no jumpers TB9 ASIC Programming Header no jumpers Table 5 28 CSEX4 Board Main Processor Write Enable Jumper TB10 Function 1 2 Main Processor Flash Write always disabled 2 3 Main Processor Flash Write always enabled Serial Ports 1 and 2 can receive and transmit the EIA232 EIA422 and EIA485 standards Serial Port 2 can be alternately configured as a DC code line interface Both ports can be configured independently as shown in Table 5 29 and Table 5 30 Serial Ports 3 can receive and transmit asynchronous RS 422 and RS 485 SeeFigure 5 9 for the location of the CSEXA switches P2346E Rev Mar 15 5 19 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 29 CSEX4 Board Channel 1 Communication Standard Selection Switch Setting Standard SW7 Position EIA422 485 all off EIA232 all on Table 5 30 CSEX4 Board Channel 2 Communication Standard Selection Switch Settings Standard SW6 Position EIA422 485 all off EIA232 all on Serial Port 4 receives a
141. sily A slave s response depends upon the type of message received e Poll If the slave station has a pending Change or bitmap it sends it at this time If no messages are pending an Acknowledge is sent If the slave s reply is either a Change or a bitmap no separate Acknowledge is sent by the slave because the Acknowledge is implied When a slave replies to the master with a Change or bitmap the master responds with an Acknowledge Change or Bitmap The slave station posts the new information to the non vital application logic and then replies the same as for a Poll message Bitmap Request The slave station replies with a bitmap The protocol clears the output buffer and sends the latest bitmap P2346E Rev Mar 15 3 5 Alstom Signaling Inc Theory of Operation 3 2 3 DT8 Messages 3 2 3 1 Message Structure All DT8 messages have a common format Each message starts with a command byte xA7 or xAA through xAF The command byte is followed by the address of the destination station which ranges from 1 to 4 bytes A variable length body of data whose length can equal zero bytes depending upon the message type follows the station address The body of a message if present ends with a CRC 16 checksum calculated using the polynomial x 6 x1 x 1 Each message ends with a terminator byte The terminator byte is normally xA9 but can be xA8 when Expedite Mode is turned on Expedite Mode applies to Master Slave M
142. sponds with a bitmap message xAE to update the office The office station acknowledges xAA the bitmap message and then both ends of the code line wait for another message for a change to occur When the field station detects a change in its non vital inputs for example it sends a Change message to the office station In the example byte 1 the second byte of the station s indication buffer changed to x55 from x11 and byte 4 changed to xAA from x44 This byte is sent as two split bytes xAO and x0A The office station acknowledges xAA and both ends wait for another message Additional messages are transmitted as subsequent changes occur If more than 50 of all indication parameters change state DT8 sends a full bitmap instead of a Change message Table 3 7 Message Exchange Between Peer Units State Office Station Field Station AE 02 11 22 33 44 55 66 A0 0359 AA 02 A9 AE 02 00 11 22 33 44 55 5D 7F A9 AA 02 A9 Running AC 02 01 55 04 AO OA F2 FF A9 AA 02 A9 AC 02 02 34 80 27 A9 AA 02 A9 AE 02 11 34 33 44 55 EF 2B 3C A9 AA 02 A9 AE 02 55 11 44 A0 0A 22 55 C4 58 A9 AA 02 A9 Some non vital applications may cause a periodic change to an indication parameter forcing the transmission of a Change message which informs the remote station that the communication link is active In this case a steady pattern of messages is observed Otherwise messages are sent only as the need arises P2346E
143. ss A unique numeric identifier for a station in a communication network a specific location in RAM ANSI Abbreviation for American National Standards Institute an organization whose purpose is to set voluntary industry standards Application A set of Boolean and conditional program code expressions or Program or instructions that manipulate communication data and system Logic inputs and outputs at a specific location in a communication network Assert To set a signal to its true or on state Asynchronous Transmission of data in which character synchronization is established by framing a unit of data with start and stop bits The time between characters can be variable Backplane Wiring connections made to the back of a CenTraCode ll circuit board Baud Rate A unit of signaling speed equal to the number of discrete conditions or signal events per second BBRAM Abbreviation for Battery Backed Random Access Memory memory that is preserved by an on board battery in the event of external power loss Binary A number base containing only two digits 0 and 1 and commonly used to express data as stored internally by a computer Bit The smallest unit in a computer s memory whose value is either zero or one stands for binary digit Bitmap A complete mapping of all bits in a control or an indication message The value of each bit or parameter is either true 1 or false 0 Broadcast A message sent by a communication
144. ssage Serial Port 3 Receiving Data NVSP Processor Running Link 1 Active Link 2 Active Com Processor Running NVSP USB Port Active 1ERR 1RSP OO 2NRM 1NRM O 2INV 20K OO 2ERR 2RSP Function MAC Serial Port Transmitting Data Comm Processor Serial Port Transmitting Data Serial Port 1 Valid Address Message Received Serial Port 1 Transmitting Data Not Used reserved for future use Serial Port 2 Valid Address Message Received Serial Port 2 Transmitting Data Serial Port 3 Transmitting Data MAIN Serial Port RS 232 Port Selection Switch F Front RS 232 Port B Back RS 232 Port MAIN USB Port Enter Select Toggle Switch NVSP Processor 7 Segment Display 0 Normal Operation 1 Warning 2 Error Reset Pushbutton Main NVSP Processor Reset Board Health LED Green OK Yellow Warning Red Error Com Serial Port LAN 1 Active LAN 2 Active Com Processor Reset Com USB Port Active Com USB Port Com Processor 7 Segment Display 0 Normal Operation 1 Warning Reset Pushbutton Com 2 Error Figure 5 12 NVSP Board Edge P2346E Rev I Mar 15 5 28 Alstom Signaling Inc Hardware Description and Troubleshooting Guide 5 3 TROUBLESHOOTING GUIDE Installation requirements for the DT8 protocol on the CenTraCode II system depend primarily upon the specific hardware being used on the code line The code line is usually
145. sually a control or an indication to either the non vital application logic or the protocol emulation for processing by the recipient See CPU A series of software instructions for the computer CPU to follow Synonymous with Code Rules that define how two or more communication devices talk to each other A formal set of conventions governing the format and relative timing of message exchange between two communication devices Abbreviation for Programmable Read Only Memory an integrated memory device that can be programmed with computer instructions or data A buffer in the system s memory RAM used to chronologically hold multiple messages of the same type for example an indication queue Abbreviation for Random Access Memory and used by a computer for storing data that can change RAM can be written to or read by the computer In a communication system the processing and use of data at time of occurrence and within a given time frame In reference to Alstom s CAAPE software package an input statement with a specific format and options Reset To change a bit s value to zero or an output to an inactive off condition see Clear to restart a process as in restarting a processor board Round Robin Task Loop A multi tasking technique wherein each task is sequentially processed and purposely relinquishes control of the CPU after some short and typically variable period of time RS 232 RS 4
146. t Out FIFO queue or a hold buffer It prevents loss of information that might otherwise happen when frequent changes occur relatively quickly If the queue becomes full and a ninth change occurs the entire queue is cleared before the new message is buffered This indication queue can be disabled When a control is unlatched DT8 posts a received control to the control buffer for use by the non vital application logic Then the entire control buffer is automatically cleared to zeros When a control is latched DT8 retains the state of control bits Each time a change is received the buffer is updated to reflect the new state of any changed control bits If a control bit is set high or to 1 it remains in the latched or unlatched state until a message with that bit reset to 0 is received Each DT8 mode of operation has a default setting for latched vs unlatched controls although the application engineer can override the default setting 3 2 2 1 Peer Mode If only two units occupy a line the Peer Mode of operation ensures more efficient delivery of information Both peer units function in full duplex operation and each has the same unlimited opportunity to transmit whenever necessary Normally peers sit quietly on the line only transmitting when the non vital application logic posts a change to the indication buffer When a change is posted one peer unit transmits either a bitmap or Change message to the other remote peer unit When peer recei
147. tatus LEDs CUSB MUSB Communication USB Port Active Main USB Port Ac 3TX 3RX Serial Port 3 Transmitting Data Receiving Data 1LN 1LK LAN 1 Active Link 1 Active 2LN 2LK LAN 2 Active Link 2 Active MRST MCYC Main Processor Reset Main Processor Running MRST Reset 1 Main Processor Reset Button 5V COMM 5 Volts Test Point COMM PT2 RS232 Serial Interface to Communication Processor SERIAL COM Common Test Point OFF CRST CYCC Communication Processor Reset Communication Processor Running COMM USB USB 2 Communication Processor USB Port COMM DSPY Communication Processor 7 Segment Diagnostic Display CRST Reset 2 Communication Processor Reset Button Figure 5 10 CSEX4 Board Edge P2346E Rev I Mar 15 5 23 Alstom Signaling Inc 5 2 7 NVSP Board Hardware Description and Troubleshooting Guide Refer to Alstom publication P2521B for details on the NVSP Board P N 31166 428 XX hardware Refer to the on line help of Alstom s CAAPE software package for a detailed explanation of the generation and compilation of a non vital application for the NVSP hardware platform Table 5 34 shows the jumper assignments for the NVSP Board All possible functions have a jumper installed even though the jumper may not make an electrical connection This is done to ensure that there is the correct number of jumpers the board at all times See Figure 5 11 for a board la
148. thod is provided for defining Text Messages in the non vital application Text Messages defined for different ports can be linked so that text data received on one port is automatically sent out the other port To define a Text Message preface the CONTROL INDICATION or MESSAGE record with the word TEXT as shown below TEXT CONTROL ADDRESS address LENGTH length NAME name TEXT INDICATION ADDRESS address LENGTH length NAME name TEXT MESSAGE ADDRESS address LENGTH length NAME name See Table 2 13 for descriptions of the Special Message Contents parameters Table 2 13 Text Message Parameters Parameter Description adaress The station address expressed in binary from 1 to 8 bits as for other serial messages length The total number of characters in the Text Message buffer name An optional message identifier of up to 16 characters used when linking Text Messages Unlike control and indication messages message data records do not follow a Text Message definition Examples TEXT CONTROL ADDRESS 00000001 LENGTH 100 NAME TRK IN TEXT INDICATION ADDRESS 00000001 LENGTH 100 NAME TRK OUT P2346E Rev Mar 15 2 21 Alstom Signaling Inc CAAPE Package 2 5 2 9 Text Message Linking An incoming Text Message can be linked to an outgoing one to provide automatic transfer of text data between ports Messages c
149. troduction s uote pee uomen mushu E REOR Ree ee aP cian bra Eae 4 1 42 MAG Port FUNGON u u Uu vec eoe eere fle Ira oer inar AA ANA T s 4 1 4 3 Emulation Men Apk aha Da sisti eA elis dod a e au eicere e MTM 4 2 4 3 1 Emulation Menu Choice Port 4 4 4 3 2 Emulation Menu Choices Next and Last 4 5 4 3 3 Emulation Menu Choice Optns 4 6 4 3 4 Emulation Menu Choice Msg 4 7 4 341 POS MENU die usa uuu suyu Q EE DR RIDERS 4 8 A35 Disp Men Hp I 4 10 4 3 5 T SSBOPMODU yur as sunsu nus ded sers LAG ina ka u tia 4 11 43 52 Mede Men iru p uquyuq can hehe Sede DAD ot eee kee es 4 12 LECDCMME ocu REED T ie me cles vcr 4 15 4 3 6 1 Counts Menu 4 16 4 3 6 2 Reset Menu zee sc ee ce RIA EEWERSEENP NINE REA 4 17 P2346E Rev Mar 15 ii Alstom Signaling Inc TABLE OF CONTENTS Topic Page 4 3 6 3 Show Info Menu 4 18 4 915 M ocal Meni yu e a aree a C Aa Recte atur eod NG 4 20 4 3 0 5 TIMES MENU a a GA oerte tx en aa a Eco e e 4 21 43005 Bags MEN hn unus tote ease EPRIRY hese ees 4 22 4 3 7 Data Monitor SCREEN nn naaa e eae ico bob ek ade hee ade eae hoh 4 23 44 PORT DIAGNOSTIC LEDS 4 26 SECTION 5 Hardware Description and Troubleshooting Guide 5 1 Bll General Lach ex aat e
150. trol MAC port users do not need a technical background or need to understand the details of the system design However users must understand the operation of the DT8 code system Users connect to the MAC port via a VT 100 a video terminal that can communicate and exchange information with the wayside non vital processing component If a VT 100 is not available the user can utilize a PC equivalent to emulate the VT 100 which must contain a software program that emulates the VT 100 and can capture the serial data stream Display modes showing code line traffic can be invoked and the emulator enables the displayed information to be downloaded for future analysis The following sections provide more detail about the diagnostic menus P2346E Rev Mar 15 4 1 Alstom Signaling Inc Diagnostic and User Interface 4 3 EMULATION MENU The Emulation Menu provides access to communication protocol emulations loaded in the wayside non vital processing component DT8 is assigned to a specific serial port in the non vital application g iVPI NYSP System App Processor Terminal Mode Com 15 connected AlsDload File Device Actions Configure View Help z gmm wx a amimiee ALSTOM SIGNALING Non Vital System Processor R Maintenance System Main Menu Monitor System Diagnostic Logger Password Watch Back_ Support Emulations Used Figure 4 1 Emulation Menu Table 4 1 contains a brief description of the options available in the Em
151. trol message data 3 23 G Graphical editor CAAPE 2 29 I IP address B 1 B 2 L LEDs communication 5 2 LEDs diagnostic 5 1 Linking 2 22 LPC files 2 29 M MAC port 4 1 Master Slave mode 3 4 Master Slave mode exchange 3 16 Master Slave polling and message exchange 3 16 Menu choices monitor 4 24 Menu emulation 4 2 Message buffers 2 8 Message display formats 4 13 Message flags special 2 17 3 14 Message timing 3 19 Message timing in peer and sync modes 3 21 Message Timing master slave mode 3 20 Message types 3 8 Mode exchange master slave 3 16 Alstom Signaling Inc INDEX Modes of Operation 3 1 Monitor menu choices 4 24 N Network Serial Communications sample A 1 NVSoE connections 2 28 NVSoE setup B 4 P Parameters 1 7 1 6 2 28 Parameters control contents 2 70 Parameters control definition 2 9 Parameters destination and source 2 13 Parameters indication contents 2 12 Parameters indication definition 2 17 Parameters message 2 14 Parameters special control 2 15 Parameters special message contents 2 17 Parameters text messages 2 21 Parameters timing and configuration 2 1 Peer mode 3 2 Platforms supported 1 4 Protocols supported B 10 Protocols user manuals B 10 R Record descriptions 2 3 2 5 Required files 2 23 S Serial Communications sample A 1 Special Message flags 3 14 Special message flags 3 14 Subcommand descriptions 3 12 Sync mode 3 3 P2346E Rev I Mar 15 T
152. ulation Menu after which these menu choices are described in more detail P2346E Rev Mar 15 4 2 Alstom Signaling Inc Diagnostic and User Interface Table 4 1 Emulation Menu Choices Port Select the serial port of interest enter the port number from 1 to 5 and view the port s setup The serial port number must be specified before using the Next Last Optns Msg or Diags menu choices Next Display the addresses and current contents of control indication and Special Message buffers for the next or only station on the selected serial port If only one station is defined for the code line port the Next and Last options behave identically Last Display the addresses and current contents of control indication and Special Message buffers for the previous or only station on the selected serial port Optns View the serial port setup including baud rate and data format data bits stop bits and parity Msg Observe message exchange controls and indications between the non vital application logic and the emulation and enter and manually post a control or a Special Message to the application logic Diags Execute protocol emulation specific diagnostics Reset Reset the entire system Use this choice with care since it causes the software to re initiate its start up sequence TWC Access the Train to Wayside Communications TWC diagnostics menu if applicable Vital Diags Access the optional Vital Diagnostic
153. und on TCP IP networking and describes how to use CAAPE to configure non vital network communication using DT8 for example P2346E Rev I Mar 15 Alstom Signaling Inc P2346E Rev I Mar 15 Alstom Signaling Inc MANUAL SPECIAL NOTATIONS In the Alstom manuals three methods are used to convey special informational notations These notations are warnings cautions and notes Both warnings and cautions are readily noticeable by boldface type and a box around the entire informational statement Warning A warning is the most important notation to heed A warning is used to tell the reader that special attention needs to be paid to the message because if the instructions or advice is not followed when working on the equipment then the result could be either serious harm or death The sudden unexpected operation of a switch machine for example or the field maintainer contacting the third rail could lead to personal injury or death An example of a typical warning notice follows NWARNING DISCONNECT MOTOR ENERGY Disconnect the motor energy whenever the gear cover is removed Otherwise the switch machine may operate unexpectedly and can cause injury and or death Caution A caution statement is used when failure to follow the recommended procedure could result in loss or alteration of data A typical caution found in a manual is as follows AN CAUTION Turn power off before attempting to remove or insert PC bo
154. undancy is enabled 2 which physical Ethernet devices on the CSEX4 NVSP board will be used for the NVSoE node enet1 enet2 or both enet1 and enet2 if redundancy is required 3 whether the NVSoE node is being set up as the client end or the server end of the TCP IP connection ifthe NVSoE node is being set up as a TCP IP server a port number for the server is also required if it is a client a specific port number is explicitly disallowed see the above discussion of TCP IP client server operation 4 the IP address or addresses if redundancy is enabled associated with the remote end of the connection for the NVSoE node ifthe NVSoE node is being set up as a TCP IP client thus implying that the remote end of the connection is a server then a port number is also required for the remote server connection The IP addresses for the local Ethernet devices on a CSEX4 NVSP board are the same for all NVSoE nodes running on the board Other configuration items are set independently for each NVSoE node which of the board s Ethernet devices is used whether the NVSoE node is client or a server and remote IP addresses are all set independently Following is a discussion of each of these NVSoE setup items including where the information is entered in CAAPE and what options are available P2346E Rev Mar 15 B 2 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup B 1 2 Local IP Address es O
155. ves a bitmap or Change message it sends an Acknowledge message Whenever a peer receives a bitmap message it acknowledges it and responds with a bitmap message of its own A peer unit may send its bitmap or Change message up to three times It waits for a preset and user configurable Message Timeout Interval between transmissions if no Acknowledge message is received The Message Timeout Interval is 100 milliseconds by default If there is no response the local peer periodically sends a bitmap with the same time interval between each transmission until the message is acknowledged and the remote peer sends a bitmap message For more information on how to configure the message time interval see SECTION 2 CAAPE Package Note The Peer Mode is supported for compatibility with earlier installations and legacy products However for new applications itis superseded by the more efficient Sync mode P2346E Rev I Mar 15 3 2 Alstom Signaling Inc Theory of Operation 3 2 2 2 Sync Mode As with Peer Mode Sync Mode can be used when two units occupy a line and both have the same unlimited opportunity to transmit whenever necessary In Sync Mode both units are referred to as peers Sync Mode improves upon Peer Mode in the following ways Sync Mode supports more than one station at a given field location Each station is assigned a unique address and set of message buffers control indication and special See SECTION 2 CAAPE Package for d
156. vice Leave the jumper at Position 2 3 when storing the board Place the CSEX2 Watchdog Timer Enable jumper TB9 at Position 1 2 prior to putting the board into service Table 5 10 CSEX2 Memory Jumpers for Devices U36 and U37 32K x 8 27256 EPROM 2 3 2 3 2 3 64K x 8 27512 EPROM 2 3 2 3 1 2 128K x 8 27010 EPROM 2 3 1 2 1 2 256K x 8 27020 EPROM 2 3 2 3 1 2 1 2 1 2 P2346E Rev l Mar 15 5 10 Alstom Signaling Inc Hardware Description and Troubleshooting Guide SWITCH 5V TP m C 081 nA F3 a le We l CH2 NORMAL FUTURE DS8 m CH1 NORMAL FUTURE APPLICATION RUNNING D CH2 RX ERROR Jumper For Strapping Port 1 See Table 6 8 Port 2 See Table 6 9 CH1 RESPONDIN CH1 VALID ADDRESS COM TP SYSTEM APPLIC TP TEST POINT EPROM U36 D b SYSTEM APPLIC EPROM U37 Figure 5 5 CSEX2 Board P2346E Rev I Mar 15 5 11 Alstom Signaling Inc Hardware Description and Troubleshooting Guide PCB NOTATION LABEL FUNCTION E1 D Isolated 5V ISO5V Isolated 5V E2 Isolated Common MAC Port 0000 s0000 RESET Reset Switch 5V Power Channel 4 Transmitting Data Channel 4 Receiving Data Channel 3 Transmitting Data Channel 3 Receiving Data Channel 5 Receiving Data Channel 5 Transmitting Data Channel 2 Normal TUUS tee Channel 1 Normal future use Application Is Running Channel 2 Error In Received Message Channel 2 Invali
157. which the server can provide a reply In practice a TCP IP port number is assigned to the server and made known to the client but the client automatically chooses an unused port number and uses it to establish a connection with the server the client s port number is not predefined and is referred to as an ephemeral port number Some port numbers are well known and registered with a governing body for example a web browser an HTTP client communicates with an HTTP server at port 80 and an email client communicates with an SMTP server at port 25 Some ranges of unregistered port numbers may be employed for private use for NVSoE communication for example or on an ad hoc basis 1 The TCP IP port number is not to be confused with the CSEX4 NVSP RS 232 RS 422 RS485 hardware ports or the virtual NVSoE nodes 1 through 10 2 Internet Assigned Numbers Authority IANA http www iana org P2346E Rev Mar 15 B 1 Alstom Signaling Inc Non Vital Ethernet Network Communication Background And Setup This understanding of how a TCP IP client server connection works is useful in understanding how to set up an NVSoE connection The NVSoE setup will be described in the context of CAAPE the VPI IVPI application development tool A number of items are required to set up the network settings for an NVSoE node on a CSEXA NVSP board 1 the IP addresses associated with the local Ethernet devices on the CSEX4 NVSP board and whether or not red
158. yout drawing identifying the NVSP jumper locations Table 5 34 NVSP Board Jumpers JP1 Function TB1 no jumper Communication Processor PROMJet Header TB2 no jumper TB3 1 to TB3 2 Communication Processor PROMJet connection points Communication Processor Flash PROM write enabled TB3 2 to TB3 3 Communication Processor Flash PROM write disabled TB4 1 to TB4 2 Backup battery disconnected use this position for shipping amp storage or if no battery is installed during operation TB4 2 to TB4 3 Backup battery connected TB5 1 to TB5 2 TB5 2 to TB5 3 NVSP Processor watchdog normal operation NVSP Processor watchdog disable watchdog reset for emulator use only TB6 no jumper TB7 no jumper NVSP Processor PROMJet Header NVSP Processor PROMJet connection points ASIC Test Header TB8 no jumper TB9 no jumper TB10 1 to TB10 2 ASIC Programming Header NVSP Processor Flash PROM write enabled TB10 2 to TB10 3 NVSP Processor Flash PROM write disabled A port is assigned RS422 485 or RS232 P2346E Rev I Mar 15 5 24 Alstom Signaling Inc Hardware Description and Troubleshooting Guide Table 5 35 NVSP Board Channel 1 Communication Standard Selection Switch Settings Standard SW7 Position RS422 485 all off RS232 all on Table 5 36 NVSP Board Channel 2 Communication Standard Selection Switch Settings Standard

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