User manual ERCP81 - Balogh technical center
Contents
1. ERCPS1 USER MANUAL Document reference ERCP81 UM 1 1 EN BALOGH SA 189 Rue d Aubervilliers CP 97 75886 Paris Cedex 18 France T l phone 33 0 1 44 65 65 00 Fax 33 0 1 44 65 65 10 Web http www balogh rfid com BALOGH TAG 3637 Old US 23 Brighton Michigan MI 48114 USA Tel USA 800 252 RFID 7343 810 360 0182 Canada 800 258 RFID 7343 Fax 810 360 0237 ERCP81 FOREWORD PURPOSE This document contains e areview of the general operation of an ERCP81 e instructions for installing and operating the system e guidelines for troubleshooting UPDATES Version Page index Description of changes 1 0 2006 03 02 Original document 1 1 2012 05 29 Update improvement of drafting NOTES The contents of this manual are subject to changes without notice BALOGH can not be held responsible for the consequences of any error omission or incorrect interpretation of the information ERCP81 UM 1 1 EN 2 24 ERCP81 TABLE OF CONTENTS 1 OBJECTIVE OF THE DOCUMEN T wrsccoscssessesecesccoscecessasscescenscscavvecssecscoscesussedseescensuessvencssesscnssecntwocinacsensvessvesseseseeneas 4 9 1 PROS A 4 2 PACRAGE CONTENT c ete 5 3 MOUNTING INFORMATION icti UR coaascnavaasictcsatas eseucessanstoenasuceaapiatnc cuavannecestacecsasuaassaaptesecciasensucaltcasseuneuseaanianecetss 6 3 1 CRUE ee E EEE2. ESID6 is ES 14 radio Radio dialog with updated data forwarded to host MAID9 radio ES14 M IDO is o T forwarded to host MAID9 pot synchro No Radio dialog I I Messages ACK l are ACKed again Messages are ACKed ACK i again Nota new messages are taken into account once the radio dialog 1s completed ERCP81 UM 1 1 EN 12 24 ERCP81 When the radio dialog failed bad CRC frame error ERR messages are sent on the serial link and repeated periodically Host 1 ERCP Master ERCP Slave Host 2 pee ERCP is set is se 4 to Master synchro No Radio dialog MAID is ent ESID 8 is sent periodically Bad Radio dialog MAID7 radio uu uuu uu Radio dialog OK MAID7 radio Ps No Radio dialog ERCP81 UM 1 1 EN 13 24 ERCP81 4 3 Interfaces 4 3 1 Serial Link Interface 4 3 1 1 Transmission characteristics Each ERCP81 is equipped with a bidirectional digital asynchronous serial link RS 422 The transmission characteristics are 19200 bauds 1 bit start e 8 bits data e 1 bit even parity 1 bit stop Individual transmitted messages are separated by a silence of at least 5 ms Individual received messages must be separated by a silence of at least five characters which corresponds to about 3 ms at 19200 bauds The end of a message is determined after a 4 8 ms timeout Individual characters within a message
3. 32 This command is useful to read reset counters This can be done at address 248 Reset counter are organized as follows in the EEPROM ERCP81 UM 1 1 EN 18 24 ERCP81 UM 1 1 EN Fo ES FA EB EC BD EB ER Resets POR Isb Resets POR msb ERCP81 identificator Power On Reset counter Resets due to MCLR Watchdog resets counter 19 24 ERCP81 5 Firmware update procedure Connect the ERCP81 to an RS232 port on a PC as shown in the diagram and table below ERCP ERES E In order to update the firmware the product must first be put into boot mode This is done by applying a voltage of between 5V and 12V onto pin F while powering up This voltage is then removed This is normally done using special equipment supplied by BALOGH Once in boot mode run Hyperterminal on the PC with the following characteristics text mode 9600 bauds no parity Xon Xoff enabled 9600 8 N 1 The update file must be in HEX format During upload the bootloader sends a character after processing each line of the hexfile After all lines have been successfully processed the S character is sent see screen capture below If the S is not received a problem has occurred and the procedure must be repeated gt MOL81 9600 _ ZON_ OFF HyperTerminal Fichier Edition Affichage Appeler Transfert 1 D connect NTIOD 9600 8 N 1 BEFIL Maj Num Capturer Echo Nota this procedure can also be done with
4. Non Volatile memory ERES 1307 and ERES 1308 are same products excepted that they were developed on different hardware They are used in safety systems in which redundancy is required and the devices shall have different implementations to avoid common mode failures See documentations ERES 1307 and ERES 1308 ERCP81 UM 1 1 EN 7 24 ERCP81 4 2 Functional description 4 2 1 Behaviour in operation The figure below depicts a typical installation PLC computer 2 Ground RS 422 PLC computer A couple of ERCP81 connected each to a host behave like a cross cable It means that a message sent by a host to another one will be transmitted through the serial link and the ERCP81 couple provided that they are close enough to communicate Communication is full duplex messages are sent and received in the same time Message X Message Y Message X Message Y So as to have a communication between ERCP81 one has to be configured as Master and the other one as Slave The host sends a command on the serial link to set the ERCP mode Commands that set the ERCP81 into Master mode are MAIDIA function ID 5 MAID6 function ID 6 MAID7 function ID 7 MAID9 function ID 9 ERCP81 UM 1 1 EN 9 24 ERCP81 Commands that set the ERCP81 into Slave mode are ESIDIA function ID 3 ESIDS function ID 8 These messages also transport data and some have an error counter Once a valid
5. body 11 Make sure the shielding ferrule does not slide over the cable jacket 12 Hold the cable in this position prior to the assembly of the cable gland hoad 13 Hold the cable in the same position as explained above and tighten the cable gland hood The max tightening torque is indicated in the table below LIL To ease the tightening operation an empty receptacle connector can be used when fixed in a bench 15 Make sure that the cable is nat bwisted during the tightening operation Above tightening torques are indicative and have to be adjusted in accordance to the cable diameter and application ERCP81 UM 1 1 EN 24 24
6. from the counterpart Data size is in the range 0 32 7 MAID7 Data and radio error counter received from the counterpart Data size is in the range 0 32 8 ESID8 Data and radio error counter received from the counterpart Data size is in the range 0 32 9 MAID9 Data and radio error counter received from the counterpart Data size is in the range 0 32 ERCP81 UM 1 1 EN 9 24 ERCP81 e Service commands They are synchronous commands used to control or to get the ERCP81 status Read firmware version Firmware version Read status ERCP81 status Reset ERCP81 ACK NAK none Set ACK temporization ACK NAK none Read ACK temporization Temporization Read EEPROM contents EEPROM data Data messages from the host are acknowledged ACK message by the ERCP81 except during radio dialog If the message received on the serial link is not valid parity error unexpected length the ERCP81 returns a NAK message The delay between last radio dialog and next acknowledged message called tempo ACK is configurable and saved in Non Volatile Memory The following scheme depicts messages exchanges between a host and an ERCP81 send data dialog end Message X Message X Message X 2 Wa Radio dial MEE No radio dialog Message X MessageX Message X Message X Message X Host ERCPI Serial ERCP 1 Hostl Serial Message Y Tempo_ACK Last data message to the host 1s repeated once after the c
7. must not be separated by more than two characters which correspond to about 1 2 ms at 19200 bauds During reception each character is checked for parity If all characters have the correct parity the message is processed otherwise it is ignored Due to historical reasons several different message formats are used for communication between the ERCP81 and an external controller host Following sections will detail the format of e Master messages e Slave messages e ACK NAK ERR messages e Service messages 4 3 1 2 Master messages 4 3 1 2 1 Message MA14 ID 5 gt Fixed length frame 14 bytes ERCP81 mode Total length of message 14 encoded in the 4 high order bits Function ID 5 master assignment 4 3 1 2 2 DATA data 12 bytes to processMessage MAID6 gt Variable length frame with header of 3 bytes 3 N l l 1 0 to 32 BEA Total length of message ERCP81 06 Function ID 6 master assignment m error counter n encoded in the 4 low order DATA data to process 4 3 1 2 3 Message MAID7 gt Variable length frame with header of 4 bytes 4 N l l l 1 0 to 32 BEM Total length of message 08 Function ID 7 master assignment EE Inputs Errors inputs are used with ERES 1307 1308 State of 4 inputs on Error counter O to 15 counterpart E4 E3 E2 E1 n3 n2 m no DATA data to process 4 3 1 2 4 Message MAID9 gt Variable length fram
8. serial link message is received it is stored in an internal buffer ready to be sent to the counterpart by radio The only data that can change during the transmission from PLC to PLC is the error counter Communication principles are given hereafter 4 2 2 Serial link protocol Messages exchanged on the serial link can be divided in to 3 categories e Data commands they are synchronous commands sent to the counterpart The list is given in the table below 3 ESIDIA Slave assignment Send data to the ACK NAK none counterpart Data size is fixed to 14 bytes 5 MAID14 Master assignment Send data to the ACK NAK none counterpart Data size 1s fixed to 14 bytes 6 Master assignment Send data to the ACK NAK none counterpart Data size is in the range 0 32 1 Master assignment Send data to the ACK NAK none counterpart Data size is in the range 0 32 8 Slave assignment Send data to the ACK NAK none counterpart Data size is in the range 0 32 9 Slave assignment Send data to the ACK NAK none counterpart Data size is in the range 0 32 e Automatic messages they are asynchronous messages sent by the ERCP81 to the host They are message received from the counterpart or ERR messages that indicate a radio communication failure 3 ESIDIA Data received from the counterpart 14 bytes 5 MAID 14 Data received from the counterpart 14 bytes 6 MAID6 Data and radio error counter received
9. tools delivered by BALOGH ERCP81 UM 1 1 EN 20 24 ERCP81 The procedure 1s the following one Start the BALOGH ERES exe tool version V0 52 or later Select the COM port and then clic on connect Select the Debug button and the select Download mode in the list Clic on Send Clic on the Disconnect button Liaison s rie RAT buffer bi Connexion De connexian R ception derniere trame EMI Asci v Cde Em EmissIan Download mode Lecture CAC16 Lecture Timeouts Lecture checksum Test codage Ecriture Timeouts Custom Aret mission hertzienne Download mode D connect i Taille buffer 0 Then start the BALOGH Flash exe tool Select the HEX file to download and then start the upgrade Follow instructions ERCP81 UM 1 1 EN 21 24 ERCP81 6 MAINTENANCE Troubleshooting involves investigating the two main external interfaces radio communication between an ERCP81 and its counterpart n serial link communication between a master ERCP81 and a slave ERCP81 If after checking these interfaces for correct operation a system malfunction persists the ERCP81 will need to be replaced as follows 1 Removal of faulty ERCP81 e disconnect power e remove connector e remove ERCP81 from mount 2 Installing a new ERCP81 e fix on mount e connect cable e connect power ERCP81 UM 1 1 EN 22 24 ERCP81 ANNEXE A CABLE ASSEMBLY FOR SHIELDED CONN
10. CP81 0 1 2 14 bytes including the final X0 4 3 1 5 2 Read status Heads status and inputs 2 bytes Request Reply where the status byte STA has the following structure 7 6 9 4 3 2 1 0 va us BIBT vw ou PR va EE EE eeprom OK active 1 VA valid exchange seen active 1 PR counterpart present active 1 DM demo mode active 1 TM test mode active 1 TP pre recorded identifiers OK active 1 not used MA Master active 1 The INPUT field is not used in ERES 1307 1308 only 4 3 1 5 3 Reset Force a processer reset ACK Request M02 1 ERCP81 UM 1 1 EN ERCP81 17 24 ERCP81 4 3 1 5 4 Set ACK temporization Set the tempo ACK value This tempo is the delay between the end of the radio dialog and next ACK Commande ACK NAK T1 is a multiple of 10 ms This allows a temporization from 10 ms to 2 55 seconds The default value is 10 ms If T1 this parameter is initialized to its default value 4 3 1 5 5 Read ACK temporization This command allows to read the value of tempo ACK Commande ACK R ponse T1 is the value of tempo ACK in multiples of 10 ms Last byte 1s not used 4 3 1 5 6 Read EEPROM contents gt Fixed length frame with 3 bytes header Total length of the message Function ID 0x10 must be 0 ADH Address Most Significant byte ADL Adresse Least sigificant byte NB Number of bytes to read up to
11. E E EEEE NTS 6 3 2 HECOMMBNBBDCRBUE erna a ENS 6 4 PRODUCT DESCRIPTIONS ax ciet vs bien art MEINE EENE ES 7 4 1 anzi 7 d 6 e 7 4 1 2 Interchangeability mixability with other Balogh products eese eene 7 4 2 FONCTION TBE SC IE TOI rs a oo 8 dadl Denar ouri ODETI TOI ee enne N INDIEN On MD UI EVE LS MEE SUN o Toro CT TT RS 9 RL ACC DE UOC OR TNR PR RR TROP PRORA Rp 11 eT WII VU EAEE EEE A EAE ETE A ITEE EEA ANE E 12 4 3 MTERA T EEEE E E E 14 Asd S ral LINK IMET ACO ncini EEE E E E EE 14 Z gp Transmission e HZ AG 61S IC Senee Ea EE EE NEEE E EAEE Eaei 14 eela N E s TNNT E E E E E E S EE I EE EA EES 14 4 3 1 2 1 Messag MA14 ID D 14 zo NS MESI SMS TETTE UTE TUR E xed asin E CURAE 15 4 3 1 3 1 Message ESTA prc 15 AC NAR ER Ro 2 16 LES CO cpu E puaiet arpa E E EE E E E E EES 16 4 3 1 5 1 Read MWA O NN TRE E O 16 4 3 1 5 2 E SAS T tape EAE E A A E EAE E T A E N AEE EAE 17 4 3 1 5 3 PO m 17 4 3 1 5 4 SACK IOMPO ZATON dan 2e 2 den ee 20 ii 2 2 Uca cesta 2 ea Ed qoia eee eo e So etek 18 4 3 1 5 5 ROO CR TOMIDOFI QUID D hi DUE 18 4 3 1 5 6 Read Fe PRO CONI estesa iut Ut a nee upU ISIN IUOS EN m CNN EIE M INS IM INN 18 5 FIRMWARE UPDATE PROCEDURE ara eas aneirin o
12. ECTORS Shielded connectors How to assemble shielded connectors 1 Put all the parts over the cable as shown on the picture 2 Keep about 10mm of the shielding idim Al Cable gland bady 3 The total strip length tdim Bi of the outer jacket has ta be defined practically This length is defined by the length of the adaptor the cable gland body type of contacts the gender of the plug connector and the dim L as shown on picture 2 4 The strip length of the individual wires is defined in the different contact sections 5 Put the contacts in the corresponding cavities 6 Screw tighten the adaptor and the cable gland body The max tightening torque ts indicated in the table below 7 Make sure the dim L 6 kept after the assembly of the adaptor and the cable gland body This dimension is needed to allow repair of the harnessing It will abo release the stress on the contacts when the assembly of the cable clamp is finished Shielding ferrule B Carefully slide the shielding ferrule until is positioned over the shielding and as clase as possible to the cable jacket amp Make sure that the shielding ferrule is correcthy polarized This polarisation ts a feature to avoid twisting of the cable during the tightening of the cable gland ERCP81 UM 1 1 EN 23 24 ERCP81 Shielded connectors How to assemble shielded connectors con s 10 Manually push the shielding ferrule inside the cable gland
13. e with header of 4 bytes 4 N l l l l lt 32 Wen Total length of message 08 Function ID 9 master assignment EE Inputs Errors inputs are used with ERES 1307 1308 State of 4 inputs on Error counter O to 15 counterpart E4 E3 E2 E1 n3 n2 m no DATA data to process 4 3 1 3 Slave messages 4 3 1 3 1 Message ES14 ID 3 gt Fixed length frame 14 bytes ERCP81 mode ERCP81 UM 1 1 EN 15 24 ERCP81 ED Total length of message 14 encoded in the 4 high order bits Fn Function ID 3 slave assignment Em data 12 bytes to process 4 3 1 3 2 Message ESID8 gt Variable length frame with header of 4 bytes 4 N l 1 1 0 to 32 BEM Total length of message 08 Function ID 8 slave assignment m Inputs Errors inputs are used with ERES 1307 1308 State of 4 inputs on Error counter O to 15 counterpart DATA data to process 4 3 1 4 ACK NAK ERR messages gt Fixed length frame 2 bytes ACK message Message returned to the host when a valid message was received by the ERCP81 It is send when no radio dialog is established NAK message Message returned to the host when an invalid message was received by the ERCP81 It is send when no radio dialog is established 4 3 1 5 Service Commands 4 3 1 5 1 Read firmware version Reads a variable length character string e g ERCP81 UM 1 1 EN 16 24 Request ACK Reply DATA ER
14. idi eas ia 20 6 NAN PEN AN CE E H 22 ANNEXE A CABLE ASSEMBLY FOR SHIELDED CONNECTORS c ee eee ee eee eee esee eese eeeessssssssaas 23 ERCP81 UM 1 1 EN 3 24 ERCP81 1 OBJECTIVE OF THE DOCUMENT 3 1 Purpose This document provides useful information for the user that will integrate ERCP81 in a system This User Manual deals with the following items e Package contents e Mounting information e Description of the ERCP81 product This section provides a product overview a quick description of the ERCP81 functions and how to interface the ERCP81 via a serial link e Firmware upgrade procedure e Maintenance and troubleshooting help e Annexes ERCP81 UM 1 1 EN 4 24 ERCP81 2 PACKAGE CONTENTS The ERCP81 inductively coupled transponder is shipped in a labelled cardboard box When unpacking please ensure that the following items are present e 1x ERCP81 with protection cap on connector e 1x Technical data sheet ERCP81 UM 1 1 EN 5 24 ERCP81 3 MOUNTING INFORMATION 3 1 Features See the product s technical datasheet 3 2 Hecommended cable e 6 or 8 wires 2 or 4 conductors for power supply refer to the pin out hereunder 2 twin twisted pairs line impedance 1200 matched inside the unit for the RS 422 link e 1 overall shield it must be in contact over 360 to the metallic cable connector housing e Connection of conductors to the cable connector by crimping conductor wire ga
15. ounterpart has disappeared The diagram below gives the duration between messages sent on the serial link send data Radio dial E dialog end Last data SSD Zb UA A UA V A 500 ms I 80 ms I 4 ERR messages are sent every 500 ms Data messages MAIDx ESIDx period is about 80 ms ERCP81 UM 1 1 EN 10 24 ERCP81 When radio failures occur an internal counter is incremented and ceiled to 15 This counter is used in some operation messages see details in further section 4 2 2 1 Radio protocol The master sends periodically a synchronisation pattern The Slave waits for this pattern When it receives the synchronisation pattern it sends its data Then the master sends its data The diagram below depicts the transmission protocol send data send data ERCP81 Slave Skeeter eamm ses Peep ee ee eh oe eee eee Sandilata Synchro Synchro ERCP81 Master A8 f ERCP81 UM 1 1 EN 11 24 ERCP81 4 2 3 Sequence diagrams Following diagrams aim at understanding interactions between serial link messages and radio messages The sequence diagram below depicts a typical operation ERCP Maen ERCP Siow 4 to Master No Radio dialog MAID is ent synchro ESID 8 is sent periodically synchro o dialog Naw message not A Ked MAID7 is fofwarded to host New message not ACKed MAID7 radio ESIDS is forwarded to host
16. parts The radio dialog 1s done in half duplex secured by a 16 bit CRC and lasts while the counterparts remain in presence Both devices the fix one and the mobile one are identical However one must be declared as Master and the other one as Slave so that they don t dialog in the same time So the master sends periodically a Request to Send frame If a Slave receives it it sends a data frame Then the Master sends its data The role of the ERCP as Master or Slave is defined by the function ID of the message sent by the host For example e If the host sends a message with a function ID 3 on the serial link the ERCP81 will be set into Slave mode e If the host sends a message with a function ID 5 on the serial link the ERCP81 will be set into Master mode 4 1 2 Interchangeability mixability with other Balogh products ERCP81 can be mixed with and or replaced by BALOGH ERES 1307 and 1308 ERES 1307 and 1308 are transmitters receivers developed on the base of ERCP81 on which additional features have been integrated like e 5 inputs On discrete input is reserved to trigger into ERCP81 mode e 5 outputs One discrete output is reserved to indicate counterpart presence e nputs outputs are available on an additional cylindrical connector e Preset radio frames Up to 4 frames are stored in Non Volatile Memory selectable through inputs e Periodic send of Life message on Serial link e Configurable temporizations saved in
17. uge 0 5 to 1 5mm e Outer diameter of cable 8 to 1 2 5 mm see data sheet accessories e Length For supply voltage 24Vdc a voltage drop of 3volts can be accepted with 1 one pair of 1 5mm diameter max length of cable 540m 2 one pair of 0 5mm diameter max length of cable 180m For supply voltage 29Vdc a voltage drop of 8volts can be accepted with 1 one pair of 1 5mm diameter max length of cable 1200m 2 one pair of 0 5mm diameter max length of cable 480m ERCP81 UM 1 1 EN 6 24 ERCP81 4 Product description 4 1 Overview 4 1 1 ERCP81 ERCP81 was developed for railway applications This product is always operated in pairs one on the eround and one on board a vehicle Once they are close enough the two enter into radio communication exchanging messages through inductive coupling The ERCP81 which is opposite is hereafter in this document referred to as the counterpart ERCPSI is a short range transmitter receiver that dialog at 13 56 MHz This integrated device includes an antenna and provides a cylindrical connector The communication range is below than 1 meter Each ERCP81 is connected to a host or external controller for example a programmable PLC or a computer through a RS 422 serial link The ERCP81 sends by radio the data received by the host On the other hand the data received by radio from the counterpart is transmitted periodically to the host The behavior is symmetrical for both counter
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