Specification for Data Logger system for Railway S&T Installation
Contents
1. MSB LSB RESULT l ID No Serial No MSB CRCI 2 CRC1 Serial No LSB CRC2 3 CRC2 Time 1 CRC3 4 CRC3 Time 2 CRC4 5 CRC4 Time 3 CRCS5 6 CRCS5 Time 4 CRC6 7 CRC6 Type identifier CRC7 8 CRC7 Data 1 CRC8 9 CRC8 Data 2 CRC9 10 CRC9 Data 3 CRC10 The CRC10 will be the CRC field in event packet Time 1 Time 2 Time 3 and Time 4 are 4 bytes of packed Time filed from MSB to LSB respectively Data 1 Data 2 and Data 3 are 3 bytes of DATA field from MSB to LSB respectively First word will be framed by taking ID no as MSB and Serial No MSB as LSB For this word the CRC byte will be taken from CRC lookup table is mentioned as CRC1 in the above table Second word will be framed by taking this resultant CRC byte CRC1 as MSB and Serial No LSB as LSB For this word the CRC byte will be read from CRC lookup table is mentioned as CRC2 in the above table This process will be repeated for 10 times as shown in the above table the resultant byte CRC10 is the final CRC This will be placed in the event packet as CRC Effective from 05 04 2006 Page 36 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 PACKED TIME Time will be stored in the Packed Form This is a long word size and time will be calculated in multiples of 1 64 second This long word will hold time for one year and even odd year identification In the long word least 31 bits will represen2. Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 SPECIFICATION FOR DATA LOGGER SYSTEM FOR RAILWAY S amp T INSTALLATIONS IRS S 99 2006 APRIL 2006 Pages 63 Research Designs amp Standards Organisation Lucknow 226 011 Effective from 05 04 2006 Page 1 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 DOCUMENT DATA SHEET Designation Amendment IRS S 99 2006 3 Title of Document Data Logger System for Railway S amp T Installations Authors Shrikant Singh Designation Executive Director Signal RDSO Approved by Name Shri G D Bhatia Designation Sr Executive Director Signal RDSO Abstract This document defines Data Logger System for Railway S amp T installation Effective from 05 04 2006 Page 2 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 DOCUMENT CONTROL SHEET NAME ORGANIZATION FUNCTION LEVEL Shrikant Singh RDSO Member Prepare G D Bhatia RDSO Approve Effective from 05 04 2006 Page 3 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 AMENDMENTS Version Chapter Amendment Effective date Annexure IRS S 99 2001 FIRST ISSUE August 2001 IRS S 99 2001 Amendment 1 12 Feb
3. 11 5 Any other voltage Whether RTU is required for monitoring of the equipments at distant place no of digital and analog inputs required in RTU Details of analog inputs to be monitored from RTU should be given in the format as given below Type of input No of Approximate distance from Digital Analog channels data logger Additional exception reports other than those mentioned in para 5 6 to be generated List of functions in addition those mentioned in para 3 10 to be monitored a Central monitoring equipment CMU required Yes No b FEP required Yes NO If YES indicate whether it is to be provided at the same station or at a remote place like control office etc Whether printer is required with data logger at the station Yes No Effective from 05 04 2006 Page 23 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Annexure Communication Protocol for Data Logger Network A 1 Scope This Document completely details out the communication methods and protocols for the data logger These methods and protocols are independent of the hardware of the data logger The communication methods and protocols have been designed to bring out the maximum throughput from the network A 1 1 Overview The data structure protocol for communication between the data loggers and CMU is explained in paras A 4 A 5 and A 6 of this Annexure A 2 Network
4. 4 2 11 Scanning interval for digital inputs shall be less than 20 milliseconds Change in status of digital signal shall only be recorded Effective from 05 04 2006 Page 13 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 4 2 12 4 2 13 4 2 14 4 2 15 4 2 16 4 2 17 4 2 18 4 2 19 Scanning interval for analog signals like DC or AC supply voltage temperature axle counter RX voltage etc shall be less than 1 second Variation of more than 5 of the nominal value from the last recorded value provided it has gone 5 beyond the nominal value shall be recorded Accuracy of measurement of analog signals shall be better than 1 within 40 of nominal value The equipment shall have facility to receive serial data from external equipment like Electronic Interlocking Integrated Power Supply etc and record it with time stamp The software of the system shall be of approved type and written in a structured format so that the purchaser can reconfigure it if required The software shall have clear bifurcation between generic software and application software At least 6 serial ports shall be provided for communication with other data loggers CMU RTU EI IPS etc Power Supply The system shall work on 24V DC 20 30 Railways will provide 24VDC input supply 19 rack mountable and 3 4 6 U high cabinets made of aluminum of minimum thickness 2mm should be used f
5. 02H Set the Tran pointer to the beginning address of the event packets Database Acknowledgement for SET TRAN POINTER BLOCK 0 TI DOH RECORD LENGTH 11H BLOCK 1 8 bytes Bytel Status Byte2 Port No 1 2 Bytes3 amp 4 SEQ No Bytes5 to 8 Packed Time Byte9 DL ID Byte10 Search status BLOCK2 Effective from 05 04 2006 Page 59 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 STATUS 00 SUCCESS 01 SEARCH FAIL 02 SEARCH FAIL DUE TO INVALID PARAMETERS 03 SEARCH FAIL DUE TO RECORDS DATA BASE IS IN PURGING All Other parameters are echoed back GET RELAY STATUS 1 8 BLOCK 0 TI 91H RECORD LENGTH 07H BLOCK 1 NO DATA BYTE BLOCK2 Acknowledgement for GET RELAY STATUS BLOCK 0 TI D1H RECORD LENGTH 08H BLOCK 1 1 Byte Byte Bits 0 7 represent the status of 1 8 relays respectively If any bit is 1 then the respective relay is picked up and if any bit is O then that particular relay is in dropped condition BLOCK2 Effective from 05 04 2006 Page 60 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 SET RELAY STATUS 1 8 BLOCK 0 TI 92H RECORD LENGTH 08H BLOCK 1 1 Bits 0 7 represent the status of 1 8 relays respectively If any bit is 1 then that respective relay should be picked u
6. 121 3 110 AC 99 121 4 110 DC 99 121 5 60 DC 55 69 6 60 DC 55 69 7 24 DC 22 5 28 8 24 DC 22 5 28 9 16 1 0 AC 5KHz Or as specified by purchaser 4 2 6 Display shall be provided on the front panel of the data logger to display current status faults alarms along with time stamp It shall be possible to display faults alarms generated up to one week earlier on the panel At least two row display shall be used with at least 16 characters in each row 4 2 71 The equipment shall have real time clock for recording time at which the status of the particular information has changed The real time clock on data logger should get synchronized with the central monitoring unit The cascaded Data logger s shall also synchronize their clocks with the real time clock of master Data logger 4 2 8 Opto couplers may be provided to electrically isolate external digital inputs relay contacts from the equipment Self diagnostics shall be provided in the system Any fault in the system shall generate error message in the system panel and generate alarm in the CMU 4 2 9 The hardware structure of the system shall be modular 4 2 10 Event logging facility for minimum 10 Lac events shall be provided in a Data logger Data shall be recorded on first in first out basis so that latest data is available in the system There should be no loss of data from the data logger memory in case of power supply failure of data logger
7. 48H 00H 31H 10H 90H 00H C2H 13H 87H FFH FFH 31H Byte 4 is CRC which is excluded in calculation CALCULATION Actual value Actual value Rotated by 1 value Shifter by 1 in Hex in Binary in binary value in hex Byte 1 48H 0100 1000 1001 0000 90H Byte 2 00H 0000 0000 0000 0000 00H Byte 3 31H 0011 0001 0110 0010 62H Byte 5 90H 1001 0000 0010 0001 21H Byte 6 00H 0000 0000 0000 0000 00H Byte 7 C2H 1100 0010 1000 0101 85H Byte 8 13H 0001 0011 0010 0110 26H Byte 9 87H 1000 0111 0000 1111 OFH Byte 10 FFH 11111111 1111 1111 FFH Byte 11 FFH 11111111 1111 1111 FFH Byte 12 31H 0011 0001 0110 0010 62H Shift checksum or Resultant byte 2DH END It is the Event packet END identifier A 4 2 DIGITAL RECORD This record will be created to indicate the change in status of the digital input Occurrence This record will be created whenever a digital input changes its state From ON to OFF or OFF to ON Its record ID is 00H BLOCK 0 BLOCK 1 TI 00H 1Byte INPUT NUMBER 2Bytes STATUS OF INPUT 1Byte BLOCK 2 Effective from 05 04 2006 Page 39 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 INPUT NUMBER 1 TO 4096 STATUS OF INPUT 00h PICK UP FFh DROP A 4 3 ANALOG RECORD This record will be created w
8. LSB END CHECK SUM Effective from 05 04 2006 Specification no IRS S 99 2006 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 START AAH 33H are the start identifiers FROM Indicates the data logger ID from which the acknowledgement is sent DATALOGGER ID 1 Signifies the DL ID in the first event packet received DATALOGGER ID 2 Signifies the DL ID in the second event packet received DATALOGGER ID 3 Signifies the DL ID in the third event packet received SERIAL NO Signifies the serial number in the received event packet CHECKSUM Signifies the validation Byte for this acknowledgement packet It is the 2 s complement of modulo sum of the 11 bytes from FROM field to Serial Number LSB of third event packet The length of the frame is always fixed to 14 bytes in spite of the number of event packets received are less than 3 also In that case the other acknowledges are filled with OOh A 6 Command Format AAH START CCH LENGTH MSB LENGTH BLOCKO LENGTH LSB TYPE IDENTIFIER TI SOURCE CONTROL FIELD DESTINATION PORT NO SEQ NO DATA BLOCK 1 Variable Length CHECKSUM MSB CHECK BLOCK 2 SUM CHECKSUM LSB Effective from 05 04 2006 Page 50 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 6 1 BLOCKO START Every command frame will be started with
9. The acknowledgement for the event packets are sent for every three event packets received or if the time between received packet exceeds 300 milliseconds On receiving any event packet it is validated for CRC and Shift Checksum If validity fails no action is performed For valid packets Data Logger will check for any duplication within the last 100 packets If it is a duplicate packet then acknowledgement will be given but it will not be transmitted in the other direction If it is a new packet then it will be placed in the buffer if space is available and acknowledge is sent back If space is not available then buffer full command is sent back Once the space is available then buffer free command is sent to reinitiate the packets transmission Once buffer full command is received back for packet transmission then the Data logger will set itself to buffer full status and wait for a time lapse of 60 Seconds On receiving the status of buffer free the Data Logger will clear the buffer full status and time lapses counts to initiate the transmission of packets At FEP the received event packets from both the directions are buffered These data will be sent to CMU whenever request received from CMU Till then it is stored in buffer These processes are illustrated with flow diagrams given below Effective from 05 04 2006 Page 28 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 4 Receive
10. A 2 1 Topology Ring Network topology has been adopted in this network In Ring configuration the Data loggers are connected serially one to another If n number of Data loggers are in network then the first Data logger is connected to the second Data logger and second Data logger to third Data logger so on up to the nth Data logger Then the first and n th Data loggers will be connected to the Front End Processor FEP individually to make the network as closed ring Each Data logger is connected with other Data loggers in either direction with 4 wire leased line modems FEP is also connected through the modems to the first and last Data loggers Since this type of configuration gives individual one to one communication between Data loggers so event data can be placed into network immediately and simultaneously by all the Data loggers Data Logger System Network Effective from 05 04 2006 Page 24 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Direction A is data flow from Data logger n n 1 1 FEP Direction B is data flow from Data logger 1 2 n FEP A 2 2 Port i Mode Asynchronous ii Baud 57600 bps iii Character Length 8 bits iv Parity none v Stop bits 1 A 3 Message Formats Two types of message formats have been implemented One for Commands from CMU to any Data Logger FEP and other is for event packets transmissi
11. Added as per clause 4 3 9 Effective from 05 04 2006 Page 6 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 TABLE OF CONTENTS S No Item Page No 1 Foreword 8 2 Scope 8 3 Terminology 9 4 General requirements 9 5 Technical requirements 11 6 Data logger equipment 12 7 Central monitoring unit 15 8 Functional requirements 16 9 Exception report 16 10 Test and requirements 18 11 Test equipment 18 12 Type tests 18 13 Acceptance test 19 14 Routine test 19 15 Test procedure 19 16 Visual inspection 20 17 Insulation resistance test 20 18 Environmental climatic tests 20 19 Applied high voltage test 20 20 Quality assurance 20 21 Plant amp machinery 21 22 Packing 21 23 Information to be supplied by the manufacturer 21 24 Information to be supplied by the purchaser 22 25 Annexure 24 63 A l Scope 24 A 2 Network 24 A 3 Message formats 25 A 4 Event packet 34 A 5 Acknowledgement Packet 49 A 6 Command Format 50 Effective from 05 04 2006 Page 7 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 0 1 0 2 1 1 GOVERNMENT OF INDIA MINISTRY OF RAILWAYS RAILWAY BOARD INDIAN RAILWAYS STANDARD SPECIFICATIONS FOR DATA LOGGER SYSTEM TENTATIVE Serial No S 99 2006 FOREWORD This specifi
12. End identifier If data is not available N becomes 0 Number of Bytes is N Effective from 05 04 2006 Page 54 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 UpLoad Result BLOCK 0 TI 82H RECORD LENGTH 07H BLOCK 1 NO DATA BYTES BLOCK 2 After successful event data transfer from data logger CMU will send this command TIME READ BLOCK 0 TI 83H RECORD LENGTH 07H BLOCK 1 No DATA BYTE is available BLOCK 2 Acknowledgement for TIME READ BLOCK 0 TI C3H RECORD LENGTH 0DH BLOCK 1 6 bytes Byte 1 4 Packed Time Byte 5 Year MSB Hex Byte 6 Year LSB Hex BLOCK 2 Effective from 05 04 2006 Page 55 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 TIME WRITE BLOCK 0 TI 84H RECORD LENGTH 0DH BLOCK 1 6 bytes Bytel 4 Packed Time Byte 5 Year MSB HEX Byte 6 Year LSB HEX BLOCK 2 Acknowledgement for TIME WRITE BLOCK 0 TI C4H RECORD LENGTH 08H BLOCK 1 1 Byte Byte 1 STATUS BYTE BLOCK 2 STATUS BYTE 00 Time Write Success 01 Time Write Fail BUFFER FREE BLOCK 0 TI 85H RECORD LENGTH 07H BLOCK 1 No Data BLOCK2 This command will be sent between data loggers to intimate other data logger that its buffer is fre
13. capable of Effective from 05 04 2006 Page 9 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 10 1 driving 24V Q series relays These outputs may be used for non vital functions like radio patching of control circuits etc For digital inputs potential free contacts shall be used Analog signals shall be scaled to a suitable limit using signal conditioner before converting to digital signal While tapping analog input it shall not load the analog channel field gear by more than 1 of rated load The system shall be suitable for working on non electrified AC electrified and DC electrified areas and where passenger freight trains hauled by single phase thyristor controlled or three phase induction motor controlled AC locomotives or chopper controlled EMU stock are operated The system shall be capable of working in conjunction with conventional relay interlocking multi aspect colour light signalling installations operated by lever frames slides amp Electronic Interlocking systems It shall have facility to log data received from Electronic Interlocking through a serial port The system except commercial PC used for CMU shall be capable of working in an ambient temperature range of 10 C to 70 C and relative humidity up to 95 at ambient temperature of 40 C Special protection against ingress of dust moisture etc shall
14. for drop If the number of inputs configured is 512 32 records will be created The configuration should be in the multiples of 512 inputs The Ist record will have inputs of 1 to 16 2nd record will have 17 to 32 and so on up to the total number of inputs BI B1 B1 B1 B1 B1 B1 BO BO BO BO BO BO BO BO BO BO 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 T IP N OJ 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Effective from 05 04 2006 Page 43 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 BLOCK 0 BLOCK 1 TI 06H 1B STATUS 2B SERIAL NUMBER 1B BLOCK 2 STATUS Status of a set of 16 inputs SERIAL NUMBER 00h FFh For the first 1 to 16 inputs 00h is given as serial number and continued up to FFh for the inputs 4096 A 4 9 All Inputs Status At RESET These records have been created at the time of Data Logger Reset This is identical to the Periodical All Inputs Status except the type identifier Occurrence These records will be created when ever the data logger resets BLOCK 0 BLOCK 1 TI 07H 1B STATUS 2B SERIAL NUMBER 1B BLOCK 2 A 4 10 Configuration Record This record will be created to store the all configurations of the Data Logger Occurrence This record will be created whenever data
15. logger is reset powered on This record will also be sent for every 34 minutes along with the Periodical all input status packets Effective from 05 04 2006 Page 44 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 BLOCK 0 BLOCK 1 TI 09H 1B CONFIGURATION BYTES 3B BLOCK 2 CONFIGURATION BYTES Bytel Higher nibble B7 B4 contain version value Lower nibble will give Revision value Byte2 Bit 7 is to differentiate data logger from relay hut Ifitis I itis a Data logger Ifitis O itisa relay hut Bit 6 is not used Bit 5 is not used Bit 4 is to indicate whether analog channels are enabled or not If 0 analog channels are disabled If I analog channels are enabled Bit 3 is not used Bits B2 B1 BO will indicate the digital inputs configuration B2 Bl BO Number of digital inputs configured 0 0 0 512 0 0 1 1024 0 1 0 1536 0 1 1 2048 1 0 0 2560 1 0 1 3072 1 1 0 3584 1 1 1 4096 Byte3 Reserved Effective from 05 04 2006 Page 45 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 4 11 DGTLFALT_RECID This record will be created whenever the digital fault sequence occurs No specific data format is defined since the digital fault sequence is dependent on local PC Occurrence This record is creat
16. these two identifiers The identifiers are 1 AAH 2 CCH LENGTH The LENGTH is represented in two bytes as 16 bit value It defines the no of bytes in between Type identifier TI and Checksum Lsb Inclusive of both CONTROL FIELD A TYPE IDENTIFIER B SOURCE C DESTINATION D PORT NO E SEQ NO A TYPE IDENTIFIER TD Type Identifier will represent different commands Also it represent the acknowledgement by OR with 40h for the command received Type Identifier Range Details 00h 7Fh Reserved 80h BFh Commands COh FFh Acknowledgements B SOURCE This byte signifies from where the command is originated C DESTINATION This byte indicates the destination to where the command has to reach For above two control bytes the identifications are i CMU The identification for CMU was FFh ii EP Identification for FEP was 00h ii DL Identification range was 41h to 7Fh For any command If the destination byte is FFH then that command will be treated as a Global command Whenever a data logger receives a command it will check the destination byte for FFH if it is FFH then it will serve the command and will send it to next data Effective from 05 04 2006 Page 51 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 logger If the destination byte is not FFH then the data logger will check it with it s own ID If it found to be e
17. CMU amp FEP in the User s manual 11 INFORMATION TO BE SUPPLIED BY THE PURCHASER 11 1 Total number of digital and analog inputs to be monitored calculated as under 11 1 1 The tenderer should give number of digital inputs required by calculating the inputs from the list given below a b c d e f g h 1 D k D All ECRs All HRs HHRs DRs or equivalent All point operating relays NWRs RWRs or equivalent All point indicating NWKRs RWKRs or equivalent All buttons and knob relays All track and axle counter relays All timer repeater relays Intermediate interlocking relays which tenderer need to monitor through data logger e g UCR ASR JSLR etc or equivalent All relays related with emergency operations e g route cancellation overlap cancellation point operation under emergency crank handle release gate release etc CH GF LX release and indication relays All relays related with block instruments with or without axle counters and SM key Any other relay required to be monitored 11 1 2 Details of Analog inputs to be monitored in local area Type of input No of channels required Effective from 230 V AC 110 V AC 12 V AC 110 V DC 60 V DC 18 V DC 12 V DC Axle counter evaluator input voltages RX unit wise 24 V DC po 05 04 2006 Page 22 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 11 1 3 11 2 11 3 11 4
18. Effective from 05 04 2006 Page 26 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 1 Command flow for request respond CMU FEP DL1IDL2_ DLn y gt a Request to DL 2 Il Accept request Send response lt lt Accept response il t From DL 2 A 3 3 2 Packet flow for event data in two directions Direction I FEP DLI DL2 DLn 2 assests Nia Send event x poe Accept event From DL n 2 Direction II FEP DLn DL n 1 DL n 2 4 Send event x J Accept event t From DL n 2 iji Retransmission to the next Data Logger in the other direction Effective from 05 04 2006 Page 27 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 3 Event Packets Communication The event packets created in the DL will be sent immediately in both the directions The event packets received from one direction is retransmitted to the other direction The event packet is maintained in the buffer till it is acknowledged On failure of acknowledgement the event packets are tried again for transmission after the time out of 3 Seconds This is repeated and tried for three times with the same time out of 3 Seconds If acknowledgment is not received even after three trials then time out will be changed to 120 Seconds thereafter it will be tried every 120 Seconds till it is acknowledged
19. HTROFF_RECID This record is created whenever any relay is normalized from chattering Occurrence This record will be created whenever digital input changes from CHATTERING state to NORMAL state Effective from 05 04 2006 Page 47 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 BLOCK 0 BLOCK 1 TI 11H 1Byte INPUT NUMBER 2Bytes INPUT STATUS 1Byte BLOCK 2 INPUT NUMBER 01 TO 4096 INPUT STATUS 00H PICKUP FFH DROP A 4 15 Modem Link Status This record will be created whenever the modem establishes or losses the link with the other modem Occurrence This record will be created whenever Carrier Detect bit of the modem changes its state BLOCK 0 BLOCK 1 TI 12H 1Byte CD STATUS 1Byte PORT NUMBER 1Byte 00H 1B BLOCK 2 PORT NUMBER 01H Direction A 02H Direction B CD STATUS 00h CD NOT EXISTING FFh CD EXSISTING Effective from 05 04 2006 Page 48 of 63 Data Logger System For Railway S amp T Installations AS ACKNOWLEDGEMENT PACKET The Acknowledgement packet structure is given below START AA H 33 H FROM 00 H DATALOGGER ID 1 SERIAL NO MSB ACK PACKET 1 SERIAL NO LSB DATALOGGER ID 2 ACK PACKET 2 SERIAL NO MSB SERIAL NO LSB DATALOGGER ID 3 ACK PACKET 3 SERIAL NO MSB SERIAL NO
20. Optional OAH Time Write High Compulsory OBH Reserved OCH Reserved ODH Digital Fault Optional OEH Analog Fault Optional OFH Reserved 10H Digital Chattering On Compulsory 11H Digital Chattering Off Compulsory 12H Modem Link Status Compulsory 13H Reserved 14H Reserved 15H Reserved 16H Reserved 17H Reserved DATA This field is having 3 bytes and the structure of these bytes will vary depending upon packet All the packets are explained in the following sections A 4 1 3 BLOCK 2 BLOCK 2 size is 2 bytes The structure of Block 2 is common for any type of event packet and it is having the following two fields Field Name Size in bytes Shift Checksum 1 End BBh 1 SHIFT CHECKSUM This is also a validation byte provided for the 11 bytes in the data packet from ID No to DATA fields excluding CRC Calculation of SHIFT CHECKSUM byte In the calculation process each byte in the record structure leaving the CRC byte will be rotated to left by one bit and then these bytes will be summed up to form the Shift checksum byte Effective from 05 04 2006 Page 38 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 It is explained in the given below example Bytel Byte2 Byte3 Byte4 Byte5 Byte6 Byte7 Byte8 Byte9 Bytel0 Bytel1 Byte12
21. RIAL NUMBER It specifies the type of Packets count Serial Number Details Olh Transmitted Packets Count Direction A 02h Receive Fail Packets Count Direction A 03h Pending Packets Count Direction A 04h Received Packets Count Direction A 05h Transmitted Packets Count Direction B 06h Receive Fail Packets Count Direction B 07h Pending Packets Count Direction B O8h Received Packets Count Direction B Effective from 05 04 2006 Page 42 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Odh Duplication Packets Count Direction A Oeh Duplication Packets Count Direction B A 4 7 HEALTH RECORD This record will be created to notify the health of data logger to the CMU Occurrence This record will be created for every one minute if any other record is not created BLOCK 0 BLOCK 1 TI 05H 1B DUMMY BYTES 3BH BLOCK 2 DUMMY BYTES 00H A 4 8 Periodical All Inputs Status In these records the status of all the digital inputs will be sent So as the CMU can synchronize with the latest input status Occurrence These records are created for every 34 minutes approximately and also on request of the CMU The number of records created will depend upon the number of inputs configured In each record status of 16 inputs will be sent Each inputs status can be 0 or 1 0 for pickup and 1
22. S COUNT 3 OR NOT NO CHECK THE TIME LAPSE OF 300ms IS TIME LAPSE IS OVER NO YES SEND ACK Effective from 05 04 2006 Page 32 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 7 Commands Communication Commands always originated from the CMU to facilitate control actions on any one or all the Data Logger s in the network Buffer full and Buffer free commands are the only commands originated by Data Loggers for control of event packets flow The commands always work in the Request and Response style Effective from 05 04 2006 Page 33 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 4 EVENT PACKET A 4 1 EVENT PACKET FORMAT AAH START 2 BYTES 55H ID NO ADDRESSS 1BYTE BLOCK 0 SERL NO SERIAL NUMBER 2 BYTES CRC i VALIDATION 1 1 BYTE PACKED TIME PACKED TIME 4 BYTES TYPE IDENTIFICATION PASEET Pee eye BLOCK 1 PACKET DATA 3 BYTES DATA SHIFT CHECK SUM VALIDATION 2 1 BYTE BLOCK2 _ BBH END Event packet consists three blocks as shown in the above frame format i Block 0 ii Block 1 iii Block 2 Effective from 05 04 2006 Page 34 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 4 1 1 BLOCK 0 The size of the BLOCK 0 is 10 bytes The structure of Block 0 is c
23. STATUS 00 Success Non Zero Fail A 6 2 BLOCK1 DATA Block 1 is for data where length is variable A 6 3 BLOCK2 CHECK SUM This checksum is 16 bit value and it is placed in the Block2 This is calculated as sum of all the bytes starting from RL MSB to last byte stored in BLOCK1 e ee Effective from 05 04 2006 Page 63 of 63
24. TH 10H BLOCK 1 9 bytes Bytel Port No 1 2 Bytes2 amp 3 SEQ No Byte4 to 7 Packed Time Byte8 DL ID Byte9 Search status BLOCK2 Effective from 05 04 2006 Page 58 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 In bi directional ring communication when there is a break in one direction transmission of event packets in that direction gets stop But in other direction the event packets continue to reach CMU Once the broken communication link is restored all pending event packets start flooding continuously towards the CMU This increases network traffic Also these packets have been already reached the CMU in other redundant communication path In order to stop the flow of packets the pointer in the data logger can be adjusted to the requested event packet Thus stopping the old events packets flow This command will move the pointer in the forward direction for the above said condition Like wise the pointer need to be moved in backward direction for the need of transmission of old event packets which are available in non volatile memory Thus by this command the pointer can be moved back and then old event packets starts transmitted Port No 01H Network Port in Direction A 02H Network Port in Direction B SEQ Number Packed Time amp DL ID are the parameters to match the event packet Search status OOH Forward search 01H Backward search
25. WAGO Phoenix etc makes shall be used as per RDSO SPN 144 All wires should be neatly bunched in horizontal and vertical channels CENTRAL MONITORING UNIT CMU SOFTWARE CONFIGURATION The database management system i e MS SQL server or Interbase shall be used to cater for basic function of Data loggers at CMU level Only licensed software shall be used HARDWARE CONFIGURATION Central monitoring unit shall be state of art PC of reputed brand based system working on commercial supply of 230VAC 50Hz The minimum configuration shall be as specified by RDSO from time to time Presently minimum configuration must be as under i Pentium 4 or equivalent processor 3 GHz 256MB RAM 2 x 20 GB HDD with disk mirroring 1 44 FDD SVGA colour monitor 17 sound card with speaker 56 KBPS modem key board optical mouse 10 100T LAN card CD writer and inkjet printer ii UPS with minimum 6 hours battery backup for central monitoring unit iii Software tools Central monitoring unit shall have Graphical User Interface GUI based software and retrieve data from all Networked data loggers up to 32 at various stations It shall store data in standard data base files The CMU shall also be capable of analyzing the data amp generate reports amp audio visual alarms on defined conditions It shall be possible to compress the data and take backup on floppy Effective from 05 04 2006 Page 15 of 63 Data Logger System Fo
26. atus information shall be processed at the central monitoring unit and audio visual alarm generated for the fault alarm condition TESTS AND REQUIREMENTS Conditions of Tests Unless otherwise specified all tests shall be carried out at ambient atmospheric conditions For inspection of material relevant clauses of IRS S 23 and RDSO SPN 144 shall apply Test Equipment i Dual beam oscilloscope of 20 MHz bandwidth ii Digital multimeters 3 1 2 digit display with facility of diode amp transistor testing with 1 accuracy iii EPROM Programmer and UV eraser iv Megger 500V v PC vi Test jig vii Any other test equipment considered necessary Type Tests The following tests shall constitute type tests a Visual inspection as per Clause 7 1 b Insulation Resistance tests as per Clause 7 2 c Card level functional tests on all the cards d System level functional tests Effective from 05 04 2006 Page 18 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 e Environmental climatic tests as per Clause 7 3 f Applied High Voltage Test as per Clause 7 4 6 3 2 Any other tests shall be carried out as considered necessary by the purchaser 6 3 3 Only one equipment shall be tested for this purpose The equipment shall successfully pass all the type tests for proving conformity with this specification If the equipment fails in any of the type tests the purchaser or
27. be provided The data logger shall be capable of being connected to a printer for obtaining a hard copy of the function recorded It shall be possible to print the following on the connected printer by selecting from user friendly menu i on line events as they are generated i1 to print the exception report i11 to print the status of user specified inputs for user definable time period The data logger shall record various field functions as indicated in para 3 10 below chronologically in the following format with name of the location at top of every page Date time channel no field function status value The status of various functions shall be recorded in the following way Digital Input Functions Status configuration Normal or reverse N or R locked or Effective from 05 04 2006 Page 10 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 es nes en v vi Locked free Pressed released SM s key xi Slots Given not given Received not Good bad through ELDs 3 10 2 Analog inputs i Axle counter Rx signal at the tag Value block AC power supply 230 110V DC supply 12 24 48 60 1 10 etc The purchaser shall indicate any additional field information required to be recorded 3 11 The system shall be easily re configurable to any changes required by user whenever modifications are carried out in the yard 3 12 Provision for n
28. cation is issued under the fixed serial number followed by the year of adoption as standard or in case of revision year of latest revision This specification requires reference to the following specifications IRS 23 Electrical signalling and interlocking equipment RDSO SPN 144 Safety and reliability requirement of electronic signalling equipment IS 9000 Basic environmental testing procedures for electronic and electrical items Wherever reference to any specification appears in this document it shall be taken as a reference to the latest version of that specification unless the year of issue of the specification is specifically stated SCOPE This specification covers the technical and operational requirements of data logger equipment which is installed to monitor the status of the signalling gears Effective from 05 04 2006 Page 8 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 1 2 2 1 2 2 2 3 2 4 2 5 3 1 3 2 3 3 at stations It also covers minimum configuration of central monitoring unit CMU Inspection shall be carried out for data logger equipment consisting of RTU FEP and CMU software Standard accessories used external to the data logger like PC for CMU UPS for CMU and modem etc shall be checked during inspection for their functional performance only required for data logger system as per specification TERMINOLOGY For the purpo
29. compares the chip time with the packed time periodically and to record the difference if any BLOCK 0 BLOCK 1 TI 02H 1B STATUS BYTE 1B DIFFERNCE TIME VALUE 2B BLOCK 2 STATUS BYTE 00H if RTC Time gt Packed Time FFH if RTC Time lt Packed Time DIFFERNCE TIME VALUE RTC Time Packed Time A 4 5 TIME WRITE This record will be created whenever time set command was sent from CMU Occurrence This record is created whenever time was set from CMU two records were created one for lower 3 bytes and another for upper 3 bytes of packed time that has been sent from the CMU These two records differ in record Id for the lower 3 bytes it is 03H For the higher three bytes it is OAH Effective from 05 04 2006 Page 41 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 BLOCK 0 BLOCK 1 TI 03h 0Ah Byte Set Time 3Byte BLOCK 2 A 4 6 Communication Status Packets These records were created to log network status for later analysis the network communication health status Occurrence These records will be created for every 68 minutes approximately BLOCK 0 BLOCK 1 TI 04H 1B PACKETS COUNT 2B SERIAL NUMBER 1B BLOCK 2 A 4 6 1 PACKET COUNT Transmitted packets or Received packets or Pending packets or Duplication packets or Fail packets for two network ports A 4 6 2 SE
30. ction The equipment shall be visually inspected to ensure compliance with the requirement of Clauses 3 to 5 of this specification The visual inspection will broadly include System level checking Constructional details Dimensional check General workmanship Configuration Mechanical polarisation on cards VVVVV Card level checking General track layout Quality of soldering and component mounting Conformal coating Legend printing Green masking VVVVV Module level checking gt General shielding arrangement of individual cards gt Indications and displays gt Mounting and clamping of connectors gt Proper housing of cards Insulation Resistance Test Insulation Resistance Test shall be conducted as per RDSO SPN 144 Environmental climatic tests Environmental climatic tests shall be conducted as per RDSO SPN 144 Applied High Voltage Test Applied High Voltage Test shall be conducted as per RDSO SPN 144 QUALITY ASSURANCE Effective from 05 04 2006 Page 20 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 8 1 All materials amp workmanship shall be of good quality 8 2 Since the quality of the equipment bears a direct relationship to the manufacturing process and the environment under which it is manufactured the manufacturer shall ensure Quality Assurance Program of adequate standard 8 3 Validation and system of monitoring of QA proced
31. d Effective from 05 04 2006 Page 52 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 91H Receive relay status Requesting 1 8 relay status from data logger 92H Send relay status Sending 1 8 relay status to the data logger 93H Receive relay status Requesting 9 16 relay status from data logger 94H Send relay status Sending 9 16 relay status to the data logger 95H Reserved Link check BLOCK 0 TI 80H RECORD LENGTH 07H BLOCK 1 No DATA BYTE is available BLOCK 2 Acknowledgement for Link Check BLOCK 0 TI COH RECORD LENGTH 07H BLOCK 1 No DATA BYTE is available BLOCK 2 Effective from 05 04 2006 Page 53 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Data Request BLOCK 0 TI 81H RECORD LENGTH 07H BLOCK 1 No DATA BYTE is available BLOCK 2 This command is used to receive event records of the Data Logger in to local PC Acknowledgement for DATA REQUEST BLOCK 0 TI C1H RECORD LENGTH N 07H BLOCK 1 N Bytes Length is Variable BLOCK 2 In the acknowledgement frame Data Logger can send event data of 10 records maximum to local PC Event packets are identical with 12 bytes in length as specified in event packet format without Start Shift Checksum and
32. d Event Packet Processing ENTER CHECK FOR CRC and Shift Checksum VALIDITY IS IT VALID in both cases CHECK FOR THE DUPLICATION in the last 100 events in the buffer ISITA DUPLICATE PCKT CHECK FOR TRANSMITTING BUFFER SPACE IN OTHER DIRECTION NO SEND BUFFER FULL BUFFER FREE COMMAND STORE THE RECVD PCKT IN TRANSMITTING BUFFER SPACE IN OTHER DIRECTION Effective from 05 04 2006 Page 29 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 5 Event Packet Transmission Process IS BUFFER FULL STATUS RECEIVED FROM OTHER DATA NO TRANSMIT CHECK THE PCKT PCKT IS A NEW SET PEKTI TIMELAPSE 3SECS IS TIME LAPSE FOR RETRANSMISSION CHECK THE TRANSMIT PCKT NUMBER OF SET TIME TRANSMITTED LAPSE 3SECS TRANSMIT THE PCKT SET TIME LAPSE 120 SECONDS Effective from 05 04 2006 Page 30 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 IS BUFFER CLEAR STATUS RECEIVED FROM OTHER DATA LOGGER YES CHECK THE 60 SECONDS TIME LAPSE OVER NO CLEAR THE BUFFER FULL STATUS CLEAR THE TIME LAPSES OF ALL PCKTS Effective from 05 04 2006 Page 31 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 3 3 6 Acknowledgement Process for Event Packet G CHECK THE RECEIVED PCKT
33. e now and it can take event data Effective from 05 04 2006 Page 56 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 ALL INPUT STATUS BLOCK 0 TI 8BH RECORD LENGTH 07H BLOCK 1 No DATA BYTE is available BLOCK2 Acknowledgement for ALL INPUT STATUS BLOCK 0 TI CBH RECORD LENGTH 07H BLOCK 1 1Byte Bytel Success 00 BLOCK2 This command will be sent whenever all digital input status need to be updated in CMU This command will trigger all input event packets to be generated and the command will be acknowledged with above frame MODEM RESET BLOCK 0 TI 8CH RECORD LENGTH 08H BLOCK 1 1 Byte Bit0 Modem in direction A Bitl Modem in direction B BLOCK2 If the bit is 1 Modem will be reset Effective from 05 04 2006 Page 57 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Acknowledgement for MODEM RESET BLOCK 0 TI CCH RECORD LENGTH 07H BLOCK 1 1Byte Bytel Success 00 BLOCK2 BUFFER FULL BLOCK 0 TI 8FH RECORD LENGTH 07H BLOCK 1 No Data BLOCK2 This command will be sent between data loggers to intimate other data logger that its buffer is full and it cannot take any more event data at present SET TRAN POINTER BLOCK 0 TI 90H RECORD LENG
34. ed whenever the predefined sequence of operations will occur BLOCK 0 BLOCK 1 TI ODH Byte DATA 3Bytes BLOCK 2 A 4 12 ANLGFALT_RECID This record will be created to indicate that the analog channels exceeded configured safe limits Occurrence This record is created whenever an analog channel crosses the configured minimum or maximum channel limits This record identical to analog record except type identifier BLOCK 0 BLOCK 1 TI OEH 1Byte CHANNEL VALUE 2Bytes CHANNEL NUMBER 1Byte BLOCK 2 CHANNEL VALUE 0 TO 4095 CHANNEL NUMBER 1 TO 64 Effective from 05 04 2006 Page 46 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 B7 1 THEN FAULT IS DUE TO EXCEEDING MAX VALUE 0 THEN FAULT IS DUE TO FALLING BELOW MIN VALUE B6 TO BO INDICATE THE CHANNEL NUMBER A 4 13 CHTRON_RECID This record is created whenever any relay is chattering Occurrence This record will be created whenever digital input changes from NORMAL state to CHATTERING state A digital input is said to be in chattering state if its status changes by 8 times or more in 4 seconds Normal state is the state where the input status does not change so BLOCK 0 BLOCK 1 TI 10H 1Byte INPUT NUMBER 2Bytes INPUT STATUS 1Bytes BLOCK 2 INPUT NUMBER 01 TO 4096 INPUT STATUS No significance A 4 14 C
35. etworking and remote monitoring of several data loggers from the central place shall be provided 3 13 Implementation of version control and change of software shall be as per RDSO SPN 144 4 TECHNICAL REQUIREMENTS Effective from 05 04 2006 Page 11 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 4 1 4 2 4 2 1 4 2 2 4 2 3 4 2 4 Data logger system consists of a Data logger equipment which is provided near the signalling gears to be monitored has following modules i Processor module 11 Input module digital analog iii Signal conditioning module iv Communication module v Printer 80 Col Dot matrix Optional vi Modem s b Central monitoring unit if provided with communication facility to retrieve data from data logger s provided at station s The central monitoring unit shall run the diagnostic software to generate alarm and exception reports Data Logger Equipment The equipment shall cater for minimum 512 digital inputs in the form of potential free contacts and 32 analog inputs The system shall be expandable up to 4096 digital amp 96 analog inputs by expansion cascading the similar equipment The equipment shall have facility to interface with Remote Terminal Unit RTU The RTU shall have modules normally identical to that used in Data logger A RTU shall cater for minimum 32 digital and 8 analog inputs The RTU shall have
36. henever there is variation in the any of analog inputs Occurrence This record will be created whenever the difference of previous recorded channel value and present scanned channel value of a particular input crosses the configured tolerance limit BLOCK 0 BLOCK 1 TI 01H Byte CHANNEL VALUE 2Byte CHANNEL NUMBER 1Byte BLOCK 2 A 4 3 1 CHANNEL VALUE 0 TO 4095 Value 4095 is equivalent to Maximum possible Channel value for that input The nominal voltages and their corresponding maximum voltages are shown in the below table Nominal voltage Maximum voltage Maximum value 230V AC 330V AC 4095 110V AC 170V AC 4095 110V DC 170V DC 4095 60V DC 90V DC 4095 24V AC 50V DC 4095 24V DC 50V DC 4095 18V DC 50V DC 4095 12V DC 25 VDC 4095 150mv 150 mv 4095 3V or 2V 5KHZ 3000mv 4095 6V DC 10V DC 4095 Effective from 05 04 2006 Page 40 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 A 4 3 2 CHANNEL NUMBER 1 TO 96 The temperature record will also be created with the same analog record ID with channel number as 00h The channel value MSB made 00 and LSB gives the temperature measured A 4 4 TIME DIFF ID To notify the difference between the packed time and with RTC chip time Occurrence This record will be created whenever there is a difference in packed time and RTC chip time The data logger
37. his nominee at his discretion may call for another equipment card s of the same type and subject it to all tests or to the test s in which failure occurred No failure shall be permitted in the repeat test s 6 4 Acceptance Tests 6 4 1 The following shall comprise acceptance tests a Visual inspection Clause 7 1 b Insulation Resistance tests Clause 7 2 c System level functional tests 6 4 2 Any other tests shall be carried out as considered necessary by the purchaser 6 5 Routine tests 6 5 1 The following shall comprise the routine tests and shall be conducted by manufacturer on every equipment and the test results will be submitted to the inspection authority before inspection The application software in proper format shall also be submitted to the inspection authority in advance a Visual inspection Clause 7 1 b Insulation Resistance tests Clause 7 2 c Card level functional test on all the cards d System level functional test 6 5 2 Any other tests shall be carried out as considered necessary by the purchaser 7 TEST PROCEDURE The test procedure shall be based on the system design The methodologies to be adopted for various tests shall be decided taking into account the system design configuration Effective from 05 04 2006 Page 19 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 7 1 7 2 7 2 1 7 3 7 3 1 7 4 7 4 1 8 Visual Inspe
38. its own processor amp communication modules RTU shall have facility to store at least 1 Lac events RTU should be expandable up to 64 digital inputs and 16 analog inputs The inputs of RTU can be taken as part of data logger system and the inputs of RTU shall be a part of the total capacity 4096 digital input and analog input capacity of 96 The programming of the individual digital amp analog channels shall be controlled by the data loggers It shall be possible to connect maximum of 4 RTUs Alternatively the RTU can exist with separate ID There shall be no loss of data due to power failure RTU shall use standard current loop serial interface for data transmission It shall be possible to connect RTU up to 3 Km from main Data logger equipment Signal conditioning module shall convert analog signals like 230 VAC 110 VAC 110 VDC 60 VDC 24 VDC 12VDC and axle counter RX voltages etc to suitable level for recording Normally all AC voltages shall be at commercial frequency of 50 HZ except for Axle counter which is at 5KHZ When an analog channel is not connected it shall not pick up any noise Effective from 05 04 2006 Page 12 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 4 2 5 Configuration of analog channels may be as under Channel Nominal Voltage DC or Voltage Range for no AC RMS alarm adjustable 1 230 AC 207 253 2 110 AC 99
39. mp 3 Add To include transmission media 18 4 2 20 2 Add Common protocol between RTU amp DL 19 4 2 21 3 Add Capacity of one cabinet 1024 Digital amp 64 Analog 20 4 2 22 3 Add Termination of All input Like Wago etc 21 4 3 1 2 amp 3 Modified Specification of PC for CMU upgraded to state of art amp Sub Effective from 05 04 2006 Page 5 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 clause added 22 4 3 8 3 Modified FEP must have capacity to store 10 lac telegrams 23 4 3 9 1 amp 3 Modified Details of common protocol 24 5 5 3 Modified Transmission rate to increase up to 57600 BPS 25 5 6 1 3 Modified Sub clause Number given 26 5 6 2 3 Modified Sub clause Number given 27 6 3 1 3 Add Applied high voltage test added 28 7 1 3 Add Sub clause number given 29 7 2 3 Modified IR test as per RDSO SPN 144 2006 amp Sub clause added 30 7 3 3 Modified Environmental as per RDSO SPN 144 2006 amp Sub clause added 31 7 4 3 Add Applied high voltage test as per RDSO SPN 144 2006 amp Sub clause added 32 10 4 3 Add Pre commissioning check list amp DOs and DON Ts 33 11 1 1 3 Modified Sub clause given number 34 11 2 3 Modified Additional ward added 35 11 4 c 2 Delete Deleted against Cl 4 1 a vi 36 11 5 amp 3 Delete Deleted against Cl 4 2 17 11 5 1 37 Annexure 3 Add
40. ommon for any type of event packet and it is having the following five fields Field Name Size in bytes START 2 ID Number 1 Serial No 2 CRC 1 Packed Time 4 START AA and 55 are the start of the event packet ID NO This is used for the identification of various devices like FEP DATALOGGER and RTU The ID numbers allotted for each device is listed below DEVICE ID RANGE FEP 00H RTU 01H 40H DATALOGGERS 41H 7FH Note The ID numbers range from 80H to FFH are reserved Serial Number It is the sequence number of packet With this CMU will identify that it is receiving all the packets or not Serial no will start from OOOOH when ever a packet is created count will be incremented by one and will roll over to OOOOH after reaching FFFFH CRC This is a validation byte provided for the 11 bytes in the data packet from ID No to DATA fields Calculation of CRC byte Effective from 05 04 2006 Page 35 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Calculation of CRC byte using Microprocessor is time consuming process So look up table technique is being used The lookup table will be prepared for all the combinations of words 16 bits each word The total possible combinations are 65536 0000H to FFFFH So total 64K bytes of lookup table is needed Calculation of the CRC byte for all 11 bytes as follows
41. on in the network A 3 1 Commands Between CMU and Data Logger FEP CMU Data Logger FEP a Request Respond Request gt Accept request Accept response lt ____ Send response b Send all get Reply Broad cast request p Accept Broadcast request Accept reply qnt Reply from all A 3 2 Event Packets Between two Data Loggers or Data Logger and FEP Data Logger n Data Logger FEP n Effective from 05 04 2006 Page 25 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Send event packet 1 Send event packet 2 Send event packet 3 Receive event packets Confirmation packet For 3 packets Data Logger n Send event packet 1 Send event packet 2 Receive event packets Confirmation packet For 2 packets Data Logger n Send event packet 1 Receive event packets Confirmation packet For 1 packet Receive event packet 1 gt Receive event packet 2 gt Receive event packet 3 Send event packets a Confirmation packet Data Logger FEP n 1 gt Receive event packet 1 Receive event packet 2 Time out 300 milliseconds Send event packets Jt Confirmation packet Data Logger FEP n Receive event packet 1 Time out 300 milliseconds Send event packets Jt Confirmation packet A 3 3 Command and Event Flow
42. or battery charger defective with acknowledgement facility Each data logger shall have it s own identity code which shall be transmitted along with data packet to central monitoring unit Events recorded at each station shall be continuously transmitted to central monitoring unit Response time of data transfer shall not exceed 10 sec In case of loss of data retransmission of data shall take place Data transfer rate shall be 57600 BPS with fallback facility to lower rates EXCEPTION REPORT Effective from 05 04 2006 Page 16 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 5 6 1 The Data logger equipment shall be capable of generating following exception reports i ii iii iv v vi vii viii ix X xi xii xiii xiv xv xvi xvii xviii xix XxX Battery Low voltage Battery charger defective Under wheel flashing of points Signal lamp failure Blanking of Signals Route section not released after passage of train due to track circuit failure Point Failure point detection not available after set time period Track circuit failure Fuse Blown OFF Timer not properly set for 120 Sec Sluggish relay operation Signal cable low insulation Route not set when operation is valid Push button stuck Signal over shoot Wrong operation Axle Counter RX low level Bobbing of track point signal crank handle Level X ing or Gro
43. or housing the PCB cards to achieve modular and ergonomic design for good maintainability The cabinet should be powder coated The front and backsides of the cabinets shall have the facility for locking the equipment Data Logger shall be capable of working with different transmission media like under ground telecom cable microwave Digital or Analog amp OFC The provision of either in built modem or external modem is acceptable The data logger equipment will continuously check the modem status and give the necessary reset as required to eliminate modem hanging condition The modem will be housed within the data logger cabinet The data logger shall be compatible to the following media i Main telecom cable 11 Quad cable iii Analog channel of OFC digital microwave or analog microwave iv 64 KBPS data channel on OFC or digital microwave Effective from 05 04 2006 Page 14 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 4 2 20 4 2 21 4 2 22 4 3 4 3 1 4 3 1 1 4 3 2 4 3 2 1 4 3 2 Communication between data logger amp RTU shall also be as per communication protocol mentioned in clause 4 3 9 Cards and terminals required for up to minimum 1024 digital inputs 32 analog inputs signal conditioning modules etc shall be accommodated in one rack of 19 width For termination of external digital and analog inputs international quality terminals of
44. p and if any bit is 0 then that particular relay should be dropped BLOCK2 Acknowledgement for SET RELAY STATUS BLOCK 0 TI D2H RECORD LENGTH 07H BLOCK 1 1 Byte Byte1 Status BLOCK2 STATUS 00 Success Non Zero Fail GET RELAY STATUS 9 16 BLOCK 0 TI 93H RECORD LENGTH 07H BLOCK 1 NO DATA BYTE BLOCK2 Effective from 05 04 2006 Page 61 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Acknowledgement for GET RELAY STATUS BLOCK 0 TI D3H RECORD LENGTH 08H BLOCK 1 1 Byte Byte Bits 0 7 represent the status of 9 16 relays respectively If any bit is 1 then the respective relay is picked up and if any bit is O then that particular relay is in dropped condition BLOCK2 SET RELAY STATUS 9 16 BLOCK 0 TI 94H RECORD LENGTH 08H BLOCK 1 1 Bits 0 7 represent the status of 9 16 relays respectively If any bit is 1 then that respective relay should be picked up and if any bit is 0 then that particular relay should be dropped BLOCK2 Acknowledgement for SET RELAY STATUS BLOCK 0 TI D4H RECORD LENGTH 07H BLOCK 1 1 Byte Bytel Status BLOCK2 Effective from 05 04 2006 Page 62 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006
45. qual then it will serve the command If it is not equal then it will send that command to the next data logger D PORT NO FEP is having 3 Ports in 3 directions CMU can send the command in any direction s by placing 1 in the relevant bit s in the field Byte structure Bit pos B7 B6 B5 B4 B3 B2 Bl BO Value 0 0 0 0 0 Port3 Port2 Portl 1 Selection of port 0 Ignoring of port E SEQUENCE NO This byte is generated by the CMU And CMU anticipates the same byte should be echoed in the acknowledgement command other wise CMU treats acknowledgement as invalid Type Identifiers Type Identifiey Command Description 80H Link check For checking link in b w CMU amp DL 81H Data Request Request DL for Data in Stand alone mode Ignored in network ports 82H Upload result Ack To the above Data Request Command 83H Read Time Read time from DATA LOGGER 84H Write Time Writing time into DATA LOGGER 85H Buffer Free Buffer free between Data Loggers 86H Reserved 87H Reserved 88H Reserved 89H Reserved 8AH Reserved 8BH All I P Status Request For Creating All inputs Records 8CH Modem reset Request For Modem Reset Res 8DH Reserved 8EH Reserved 8FH Buffer full Buffer full between Data Loggers 90H Set transmitting pointer For setting the Transmitting pointer of the required port to the required recor
46. r Railway S amp T Installations Specification no IRS S 99 2006 4 3 3 4 3 4 4 3 5 4 3 6 4 3 7 4 3 8 4 3 9 5 1 35 2 5 3 5 4 5 5 5 6 Software used for analysis of data prediction of faults etc in central monitoring unit shall be of approved type and written in a structured format so that purchaser can reconfigure it if required A copy of software shall be supplied in CD It shall be possible to display the status of signalling gears at any selected time in graphic form for any selected station yard on the central monitoring unit It shall be possible to retrieve the stored data amp simulate train movement on the central monitoring equipment It shall be possible to send commands to various Data loggers to activate audio visual alarm or operate an electromagnetic relay It shall be possible to share data available in CMU by other PCs through available local area network where this data can be used for train charting passenger information purpose Front End Processor FEP shall be provided to continuously retrieve data from station data loggers FEP must have capacity to store 10 lac telegrams It should have 6 ports The communication protocol for transmitting data and command between data logger and CMU is given in Annexure FUNCTIONAL REQUIREMENTS The system shall generate audiovisual alarm in ASM s Signal Maintainer s room in the case of power supply failure battery voltage low
47. ruary 2002 IRS S 99 2001 Amendment 2 30 September 2004 IRS S 99 2006 Amendment 3 5 April 2006 Effective from 05 04 2006 Page 4 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 Amendment 3 Details SI Clause Amendment status Remarks l 1 2 2 Add To clarify The scope of inspection of Modem amp CMU 2 3 3 3 Modified Output relay capable to drive 24V Q Series Relay 3 3 4 3 Modified Field gear shall not load gt 1 4 3 7 3 Modified Forced Cooling to be deleted 5 3 8 3 Modified To Print in user friendly mode 6 3 9 3 Modified Format to include location name amp Channel no 7 3 10 1 vii 3 Deleted amp To delete Three position inputs amp xvii subsequent clause renumbered 8 3 10 2 iv 3 Deleted amp Covered by Digital Input subsequent clause renumbered 9 3 13 3 Add To include Version control 10 4 1 vi 2 amp 3 Add To add modem 11 4 2 2 3 Modified RTU Event Capacity Defined 12 4 2 7 1 1 amp 3 Deleted To delete synchronization of control office digital clock 13 4 2 10 3 Modified Storing capacity to increase upto 10 lac 14 4 2 12 1 amp 3 Add amp To clarify input variation Modified storing percentage of analog 15 4 2 17 3 Modified Power Supply as per spn 144 16 4 2 18 3 Modified To make modular amp Ergonomic design 17 4 2 19 2 a
48. se of this specification the terminology given in IRS S23 and RDSO SPN 144 shall apply Input module means an electronic module card used to read status of relays digital input and or level of analog signals Signal Conditioner means an electronic module or card used to convert analog signals to a suitable level for recording SSI Electronic interlocking is a processor based electronic system to control signalling equipments functions at any interlocked station Integrated power supply IPS is a composite module delivering various AC and DC voltage for signalling equipment GENERAL REQUIREMENTS The system shall chronologically monitor and record the status of various field functions like track circuits points signals operator s push buttons switches digital Inputs and level of various analog signals like DC and AC supply voltages Axle counter signals etc The equipment shall also have the capability of statistical analysis predict the faults and generate failure reports It shall be possible for the user to define fault logics taking digital analog inputs into consideration and generate reports for such faults The equipment shall be capable of generating audio visual alarm under defined conditions In addition it shall be able to deliver non vital relay outputs on receipt of command from CMU At least 8 non vital relay outputs shall be provided The non vital relay output shall be in the form of potential free contacts
49. t the time The 32 bit will be used to represent the year status 1 for odd year and 0 for even year The equation to build packed time from the real time is given below Packed time Days x 24 x 60 x 60 x 64 Hr x 60 x 60 x 64 Mt x 60 x 64 Sec x 64 Here Days Number of completed days till present date Hr Hours Mt Minutes Sec Seconds Example Consider 12th March 2003 21 16 24 Days 70 Hr 21 Mt 16 Sec 24 Packed Time 70 24 60 60 64 2 1 60 60 64 16 60 64 24 64 391973376 decimal 175DOA00 hexa A 4 1 2 BLOCK 1 Block 1 size is 4 bytes The values in the BLOCK 1 will vary depending upon the type of event packet BLOCK 1 is having the following fields a TYPE IDENTIFIER 1 bytes b DATA 3 bytes TYPE IDENTIFIER TD This is a byte sized value and it indicates packet type Each packet will have a unique type identifier The below table shows various type identifiers TI Details USAGE 00H Digital Record Compulsory 01H Analog Record Compulsory 02H Time Difference Compulsory 03H Time Write Low Compulsory 04H Communication Status Packets Optional Effective from 05 04 2006 Page 37 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 05H Health Record Compulsory 06H Periodical All Inputs Status Compulsory 07H All Inputs Status at Reset Compulsory 08H Reserved 09H Configuration Record
50. und frame repeater relay Point repeated operation Non sequential shunting of tracks 5 6 2 The CMU shall be capable of generating following additional exception reports i ii iii iv v vi vii viii ix x xi xii xiii Emergency cancellation of route Panel failure due to power failure Late start of a train train operation Late operation of signals with respect to local trains train operation Route failure online indication with analysis of the stage at which it had failed Non signal movement train operation Total on time of lamp to assess working life of signal lamp Total number of operations of the relay to assess life of relay Emergency Point operation Emergency Route Release Emergency Sub Route Release Overlap release Emergency Crank Handle release Effective from 05 04 2006 Page 17 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 5 7 5 8 6 1 6 2 6 2 1 6 3 6 3 1 xiv Calling on operations xv Slot operations Xvi Historical replay of events in a yard in graphical manner xvii Circuit progression Railway shall provide logic for the same xviii Any other exception report Exception condition shall be stored in the data logger chronologically and displayed one by one on the front panel through a toggle switch Data loggers of all stations shall send status report to the Central monitoring unit continuously St
51. ure shall form a part of type approval The necessary Plant Machinery and Test instruments as given below shall be available with the manufacturer 8 3 1 Plant amp Machinery i Ultrasonic cleaner Aqueous cleaner for automatic cleaning ii Burn in chamber iii Anti static assembly iv EPROM Programmer and UV Eraser v Microprocessor development system vi Computer aided design system 8 3 2 All test instruments as given in Cl 6 2 1 shall be available with the manufacturer 8 4 Along with the prototype sample for type test the manufacturer shall submit the Quality Assurance Manual 9 PACKING The equipment and its sub assemblies shall be packed in thermocole boxes and the empty spaces shall be filled with suitable filling material Before keeping in the thermocole box the equipment shall be wrapped with bubble sheet The equipment shall be finally packed in a wooden case of sufficient strength so that it can withstand bumps and jerks encountered in a road rail journey 10 INFORMATION TO BE SUPPLIED BY THE MANUFACTURER Following documents should be supplied along with the system 10 1 Mechanical drawings of each sub system rack 10 2 Trouble shooting chart 10 3 Installation and Maintenance Manual Effective from 05 04 2006 Page 21 of 63 Data Logger System For Railway S amp T Installations Specification no IRS S 99 2006 10 4 Pre commissioning check list DOs and DON Ts of data logger system including RTU
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