170 ENT 110 00 Ethernet Communication Adapter User Guide
Contents
1. llif buf_diff c ibuf c2 ibuf2 System out printl n different 1 if dolog 1 System out printin II end of FOR loop doing 10 catch Exception e System out printIn mbtest unexpected exception e static boolean buf_diff int cl byte bl check only the modbus response for equality ignore address int c2 byte b2 if cl c2 return true int i for i 7 i lt cl itt if b1 i b2 i return true 26 Test Program Source Code return false public static void log_buf byte buf int len String prefix System out print prefix int i for i 0 i lt len i System out print tl nteger toString buf i gt gt 4 amp Oxf 16 Integer toString buf iJ amp Oxf 16 System out printin 27 Test Program Source Code 3 2 Source testl txt This file contains the target addresses of the input and output communication adapters used in the test loop The host server must resolve these to the IP addresses of the adapters The file also contains the input and output Modbus commands to the adapters for reading the base module inputs and writing the base module outputs The file s contents follow target eio4 target eio2 Input command followed by output command 30002 10000240000 00 40 quit 282. operating parameters The block s length is 13 words The registers can be read by the application but cannot be written into Table 6 Module Status Block Layout Reference hex Purpose Contents 4F801 Length of status block words 13 decimal this adapter in most recent Modbus transaction high word of 2 words see 4F 807 4F 802 I O module quantity of input words Module dependent 4F 803 I O module quantity of output words Module dependent 4F 804 I O module ID number Module dependent 4F805 Communication Adapter Format XR revision number where X upper 4 bits always 0000 R lower 12 bits defining the revision as 3 hex characters Example 100 hex Rev 1 00 200 hex Rev 2 00 4F 806 ASCII header block length words Module dependent 4F807 Last IP address to communicate with Node address dependent this adapter in most recent Modbus transaction low word of 2 words see 4F 80D 4F 808 Remaining ownership reservation time milliseconds 4F 809 Remaining outputs holdup time milliseconds 4F80A I O module health 8000 hex healthy 0000 hex not healthy 4F80B I O module last error value Module dependent 4F 80C I O module error counter Error count 0000 FFFF hex 4F80D Last IP address to communicate with Node address dependent 15 Communicating With the Adapter 4FCO1 hex Module ASCII Header Block These registers contain an ASCII text description of the modul
3. substring 6 trim System out printIn mbtest connecting to target es new Socket target 502 os es getQutputStream is new BufferedInputStream es getInputStream cmd di readline trim ing target2 ket es2 null putStream os2 null terlnputStream is2 null cmd startsWith target target2 cmd substring 6 trim System out printin mbtest connecting to target2 es2 new Socket target2 502 os2 es2 getOutputStream is2 new BufferedinputStream es2 geti nputStream cmd di readline trim address 1 address 1 e obuf new byte 261 e obuf2 new byte 261 e ibuf new byte 261 21 Test Program Source Code byte i obuf 0 obuf 1 obuf 2 obuf 3 obuf 4 obuf2 obuf2 obuf2 obuf2 obuf2 for if Il if ignoring uf2 new byte 261 0 0 0 0 0 0 0 0 2 0 3 0 4 0 wed cmd startsWith System out print n cmd cmd di readLine trim conti nue cmd startsWith address2 address2 Integer parselnt cmd substring 9 cmd di readline trim continue cmd startsWith address address Integer parselnt cmd substring 8 address address cmd di readline trim conti nue cmd starts Wi handle script cmd starts Wi int h quit delay h wait Integer parselnt cmd substring 5 delayTime gt 300
4. with discrete I O bases The field output terminals of the output base are wired directly to the field input terminals of the input base An oscilloscope is used to time the switching of the field signals Figure 2 Example Data Turnaround Time Field Osci Adapter i Host PC u with Wining running Discrete Test Input Program Terminals oscope Adapter with Discrete Output Terminals The test program is a J ava loop that performs this sequence 1 Continuously reads the input terminals of the input base module 2 Writes an output terminal to a new ON or OFF condition 3 When a changed state is received from the inputs toggles the outputs The oscilloscope measures the time duration of the ON state of the outputs Figure 3 Data Turnaround Time Measurement Time measured here lt ON OFF Ethernet Communication Adapter Tests were conducted on two separate NT workstations with these configurations H 200 MHz 96 MB RAM H 100 MHz 32 MB RAM Table 3 shows the measured data turnaround times The results indicate thatthe major factor affecting data timing is the speed of the loop execution in the host Table 3 Results Data Turnaround Time Networked Network Minimum Maximum Average HostCPU Devices Loading Time Time Time Speed and RAM 2 10 5ms 9 ms 6 2 ms 200
5. 00 break delayTime if delayTime lt 0 System out printin mbtest warning else Thread sleep del ayTi me cmd di readline trim continue invalid delay time delayTime 22 Test Program Source Code if os null os2 null System out printIn mbtestt abort no connection established to target break II now convert to a byte string II assume format is hex separated by whitespace int ix 0 output index number of bytes found int sx 0 input index substring position int cmd length while sx lt I int ex ex cmd indexOf sx if ex lt 0 ex int bval Integer parselnt cmd substring sx ex 16 obuf 7 ix byte bval sx ext if ix 0 I handle blank line as comment System out print n cmd cmd di readline trim conti nue obuf 5 byte ix 1 obuf 6 byte address Kieser ten pre Benin er Da ie en en Reis Il read the command for the second target Massen este er BE ee EEA RE cmd di readline trim ix 0 output index number of bytes found sx 0 input index substring position cmd length while sx lt I int ex ex cmd indexOf sx if ex lt 0 ex int bval Integer parselnt cmd substring sx ex 16 obuf 2 7 ix t byte bval sx ext 23 Test Program Source Code if ix 0 handle blank line as co
6. AM If a new initialization occurs and the adapter cannot find a BOOTP server the adapter will use this saved address If a data 0 is written to the reference the current IP address will be erased Warning DUPLICATE ADDRESS HAZARD Having two or more devices with the same IP address can cause unpredictable operation of your network Before removing any adapter from service you must first write a logical 0 zero into register 4F411 to clear the adapter s stored address This will reduce the possibility of a duplicate IP address appearing on your network if the adapter is later restored to service Failure to observe this precaution can result in injury or equipment damage Warning THE ADAPTER INITIALIZES WHEN THESE CONTENTS CHANGE Any change of state of this reference s contents will cause the adapter to re initialize Modbus Read Command Get Current IP Address Fora Modbus Read command the reference is treated as a two word register with the application reading two words of data If the adapter has IP parameters saved in its non volatile RAM it will return its current IP address to the Modbus Read command indicating that it has stored parameters If IP parameters are not currently saved the adapter returns all ones FFFFFFFF hex to the Read 14 Communicating With the Adapter 2 1 3 Status Registers 4F801 hex Module Status Block These registers provide information about the module s revision level and current
7. MHz 96 MB 2 40 5 ms 9ms 6 2 ms 200 MHz 96 MB 2 70 6 ms 9ms 6 3 ms 200 MHz 96 MB 64 10 6 ms 8 ms 6 8 ms 200 MHz 96 MB 64 40 6 ms 12 ms 8 4 ms 200 MHz 96 MB 64 70 6 ms 13 ms 8 2 ms 200 MHz 96 MB 64 10 25 ms 30 ms 26 7ms 100 MHz 32 MB 64 40 25 ms 30 ms 26 7ms 100 MHz 32 MB 64 70 26 ms 30 ms 27 0ms 100 MHz 32 MB J ava source code for the test program is reproduced in Chapter 3 Ethernet Communication Adapter 13 Status Indicators The adapter has two front panel indicators showing its operating status Figure 4 Indicators Adapter Status Network Activity 170 ENT 110 00 Table 4 RUN Indicator Adapter Status Indicator State Status On steady Normal operation power is present from I O base and the adapter is ready for network communication 3 Flashes long Off No Link The network cable is not connected or is defective 4 Flashes long Off No MAC Address The adapter s MAC address is not set Internal hardware problem 5 Flashes long Off No IP Address The adapter is attempting to obtain an IP Address from a BOOTP server 6 Flashes long Off The adapter s internal executive program has started but cannot initialize the I O base 7 Flashes long Off The adapter has obtained an IP address but does not have a valid executive program 8 Flashes long Off The adapter s executive prog
8. SS 000054XXxXXXxXx WARNING DO NOT USE DUPLICATE IP ADDRESS IP Labels on Adapter s Global Address Adapter s IP Address end panels Ethernet Communication Adapter 1 5 15 1 1 5 2 Placing the Adapter into Service Initialization and Self Tests When the adapter receives its initial operating power from its I O base it performs internal initialization and self tests If the tests fail the RUN indicator flashes to indicate the failure reason if possible and the adapter remains offline If the tests are successful the adapter attempts to obtain its Ethernet IP address Assigning an Ethernet IP Address Overview Address Assignment A BOOTP server is required to assign a new IP address to the adapter After the server assigns the IP address the server application can issue a command to the adapter to cause it to store the address internally If the adapter has stored its address and is re initialized for example following a power loss the adapter will again issue requests for an address from a BOOTP server If a server responds with an address the adapter will use it that address If a server does not respond the adapter will revert to its stored address Requesting the IP Address After completing its initialization the adapter requests its Ethernet IP address from a BOOTP server The adapter uses its MAC address with the BOOTP protocol over the Ethernet network R
9. Starting reference 40001 is used to address input data from field inputs and output data to field outputs Data is transferred in the IEC format Mapping between the controller s data registers and I O base field terminals is unique to each base and is described in the TSX Momentum I O Bases User Manual 870 USE 002 00 Configuration Registers 4F001 hex Outputs Holdup Timeout Value Reference 4F001 specifies the amount of time that outputs will be held in their current state if they are not updated by a new Modbus Write command If the module s holdup time expires before a new write command is received all outputs are set to logical 0 zero The field length is one word The timeout value is expressed in units of 10 milliseconds with a minimum register value of 30 300 milliseconds and maximum value of 6000 60 seconds The default value is 100 1 second The register s contents can be read using a Modbus Read command 4F401 hex Ownership of Write Privilege When the adapter first receives power it will give sole write privilege to the first node that writes to it using the Modbus Write command The adapter maintains an internal 60 second timer for handling the write privilege and will reserve sole privilege to that node as long at the node continues to write within 60 second intervals to the adapter Starting reference 4F 401 specifies the IP addresses of up to three more nodes which may concurrently own write privilege t
10. XXXXXX 00 170 ENT 110 00 Ethernet Communication Adapter User Guide 870 USE 112 00 Rev 10 07 98 S GROUPE SCHNEIDER E Modicon Square D E Telemecanique Breite 185 mm H he 230 mm Breite 178 mm H he 216 mm Data Illustrations Alterations Data and illustrations are notbinding We reserve the right to alter products in line with our policy of continuous product development If you have any suggestions for improvements or amendments or have found errors in this publication please notify us using the form on one of the last pages of this publication Training Schneider Automation offers suitable further training on the system Hotline See addresses for the Technical Support Centers at the end of this publication Trademarks All terms used in this publication to denote Schneider Automation products are trademarks of Schneider Automation Incorporated All other terms used in this publication to denote products may be registered trademarks and or trademarks of the corresponding corporations Microsoft and MS DOS are registered trademarks of Microsoft Corporation Windows is a brandname of Microsoft C orporation in the USA and other countries IBM is a registered trademark of International Business Machines Corporation Intel is a registered trademark of Intel Corporation Copyright Allrights are reserved No partof this document may be reproduced ortransmitted in any form or by any means electronic or mechanica
11. apter 000ee 10 Install the New Adapter ccc cece eee eee een nn 10 WOW WWOONNNANMNAPWWWNNNDN ei Communicating With the Adapter eeeeeeeeeeees 11 Communication Access Registers cece eee eee eee 12 Data Registers nn ne ei diesel Gaba tune 13 Configuration Registers 2 eet teens 13 Status Register ka a anal astra nda 15 Test Program Source Code 2rsnsneensnnnnnnnnnnn 19 Source FESPONSE JAVA nneeeeeeeneneeen ernennen essen 20 SOURCE TESTER en a nk OOR EAE E a OTA AO AIA 28 870 USE 112 00 Breite 178 mm H he 216 mm TSX Momentum Ethernet Communication Adapter 1 170 ENT 110 00 This Communication Adapter can be connected to any TSX Momentum 1 0 base to create a functional I O module It provides direct connection to the Ethernet network enabling an Ethernet host to communicate with field devices wired to the I O base terminals Figure 1 shows the layout of a typical adapter and I O base Figure 1 Communication Adapter with TSX Momentum I O Base Side Front View View Communication Adapter I O Base Ethernet network port co gt I gt gt Communication D Adapter q O Base This chapter describes H Product Overview H Example Data Turnaround Time Status Indicators Connecting to the Network Placing the Adapter into Service T E so ZE Replacing an Adapter Ethernet Communicati
12. apter from service The adapter has an internal register which defines the boolean state saved or not saved of its IP parameters The register can be read by the application and it can be written into to cause the adapter to clear the parameters Warning DUPLICATE ADDRESS HAZARD Having two or more devices with the same IP address can cause unpredictable operation of your network Before removing any adapter from service you should first write a logical 0 zero into the parameter storage register to clear the adapter s stored parameters This will rreduce the possibility of a duplicate IP address appearing on your network if the adapter is later restored to service Failure to observe this precaution can result in injury or equipment damage Refer to Section 2 1 for a description of the adapter s registers including how to clear its stored parameters Remove Operating Power and Disconnect the Adapter Before removing the adapter remove the operating power from the I O base Then disconnect the Ethernet cable and remove the adapter from the base Install the New Adapter Mount the new adapter onto the I O base following the instructions supplied with the new adapter Record the new adapter s IEEE Global Address MAC address and use it to configure an Internet Protocol address IP address for the adapter Section 1 5 describes how to place the new adapter into service using the Ethernet BOOTP protocol 10 Communica
13. apter receives its IP address it runs an internal procedure to identify its I O base If the procedure fails the adapter s RUN indicator flashes a failure pattern six flashes and will remain offline If the I O base is successfully identified the adapter is ready to communicate using the Modbus protocol over TCP IP Storing the IP Address in the Adapter The adapter has a non volatile RAM area for storing its assigned IP address If the application requires the adapter to retain its current IP address the application must issue a Modbus Write command to write a boolean value into a specific register in the adapter to cause the address to be stored The adapter s default state is to not store the address Section 2 1 describes how to store the IP address and how to determine if an address has been previously stored Ethernet Communication Adapter 1 6 1 6 1 1 6 2 1 6 3 Replacing an Adapter Erase the Stored IP Address Before removing any adapter from service you should clear its IP address The adapter has a non volatile RAM area for storing its assigned IP parameters The parameters are retained when power is removed from the adapter and will remain permanently in the adapter when it is removed from service If the adapter is subsequently returned to service it would be possible for it to cause unspecified activity on your network You should therefore erase the current parameters before removing the ad
14. e The registers can be read by the application but cannot be written into The block length depends upon the type of I O base to which the adapter is connected The maximum length is 64 bytes of ASCII characters corresponding to a length of 8 32 words as specified in word 6 of the Module Status Block at reference 4F 806 The block contains labels to identify the quantities of input and output words and the ID code of the I O base You can parse the block contents to extract this information into your application Table 7 ASCII Header Block Layout ASCII Characters Meaning ETHERNET Identifies Ethernet Communication Adapter 20 hex 32 decimal space EC Data is transferred with I O base in IEC format 20 hex 32 decimal space DIG Digital module ID range XX00 XX7F hex EXP Expert module ID range XX80 XXBF hex ANA Analog module ID range XXCO XXFE hex 20 hex 32 decimal space inlen n Input words n quantity of words decimal 20 hex 32 decimal space outlen n Output words n quantity of words decimal 20 hex 32 decimal space D 0xnnnn Module ID code nnnn 1D code hex Figure 8 shows examples of the ASCII Header Block contents for two I O bases 16 Communicating With the Adapter Figure8 Examples ASCII Header Block 170 ADM 350 00 Discrete 16 Point Input 16 Point Output Module ETHERNET IEC DIG inlen 1
15. eceiving the Server Response The adapter will wait ten seconds fora BOOTP server to respond with the adapter s IP address If the server response is received the adapter will use that address as long as power remains applied to the adapter Warning DUPLICATE ADDRESS HAZARD Having two or more devices with the same IP address can cause unpredictable operation of your network Ensure that this device will receive a unique IP address Failure to observe this precaution can result in injury or equipment damage Retries to the Server Ifa BOOTP server response is not received the adapter will retry the request six times three times using the Ethernet II framing type and three times using the 802 3 framing type Ethernet Communication Adapter 1 5 3 1 5 4 Server Response Not Received IP Address Previously Stored Ifthe adapter receives no response to any of its attempts to obtain an IP address and if an address has been previously stored by a Modbus Write command from the application the adapter will then use that stored address Server Response Not Received IP Address Not Stored Ifthe adapter receives no response to any of its attempts to obtain an IP address and if it does not have any stored address the adapter will continue to retry the BOOTP request every 30 seconds During this time it will flash its RUN indicator in the requesting pattern a sequence of five flashes Identifying the I O Base After the ad
16. ed by the user at the field location The adapter receives its operating voltage through its I O base internal connection The adapter monitors its voltage and goes offline to the network if the voltage is not within tolerance Ethernet Communication Adapter 1 1 4 1 1 5 1 1 6 Mapping Data to I O Base Field Terminals Data is mapped between the application and I O base field terminals in the IEC format Refer to the TSX Momentum I O Bases User Manual 870 USE 002 for the mapping diagrams for the I O bases Managing Throughput to I O Bases To ensure deterministic timing of I O messages you should design your network to include only your application host and your I O base communication adapters Adding other kinds of devices such as user interfaces or programmers can cause variables in I O message timing when those devices access the network Specifications Table 1 Network Specification Description Specification Ethernet interface Compliant with the STP or UTP 100 ohm connection Table 2 Agency Approval Agency Status UL 508 Approved CAN CSA C22 2NO 142 Approved CE Mark Approved Ethernet Communication Adapter 1 2 Example Data Turnaround Time Figure 2 shows an example of a control loop constructed to measure the data turnaround time at the field terminals of a pair of I O bases A host PC running the test program is connected by Ethernet to two adapters
17. es of the 10 modules and the write and read commands are read froma text file II mbtest java 4 26 96 Ii minimal application to communicate and do performance measurement I to the Quantum Ethernet module using ASA registered TCP port and II MODBUS ENCODING PDU format II variant 5 14 96 to allow comparison of responses to the same request from 2 targets II variant 5 24 96 to allow specification of independent addresses on the 2 targets I and to allow time delay in script ll 11 11 97 generate usage and handle blank lines as comment import java io import java net class mbtest public static void main String argv if argv length lt l System out printin usage java mbtest scriptfile gt reportfile n eg java mbtest script txt gt result txt else try 20 Test Program Source Code int int lon int byt int Dat Str 11 I Il Str Soc Out Fil cmd if Str Soc Out Fil if int int byt byt byt dolog 1 keybuf g skipcnt i oCount e expect first alnputStream di new DatalnputStream new FilelnputStream argv 0 ing cmd analyse arget lines Note must be followed by address note this version of the program requires that the target lines be the first 1 or 2 lines of the script ing target ket es null putStream os null terlnputStream is null di readline trim cmd startsWith target target cmd
18. l including copying processing or by online file transfer without permission in writing by Schneider Automation Incorporated You are not authorized to translate this document into any other language 1998 Schneider Automation Incorporated All rights reserved Contents Contents TSX Momentum Ethernet Communication Adapter 170 ENT 110 00 1 Product Overview ae nen mon dedi ttt nie IV 14 Kol 0 1 NORMSS SCHWERTER PURE tou nahh odie danttis NE RSTERE HE ar p a pS a TEUER Physical Structure seieren eera ran BR eis Operating Voltages and Error Control 0 cece eee Mapping Data to I O Base Field Terminals ccc cece eee eens Managing Throughput to I O Bases 0 ccc cece eee Specifications soe se tan reed dod oo een ba Example Data Turnaround Time 0 00 c cece eee Status Indicators iccccsee nes Connecting to the Network i ieee ett Network Connector 0 cece eect nern Network Labels Global Address and IP Address 220eeeeuee Placing the Adapter into Service 0 eee eee Initialization and Self Tests 2222sseeeeeeenennn ernennen Assigning an Ethernet IP Address 0 cece eee Identifying the I O Base osuisi Storing the IP Address in the Adapter 0 cece cece eee eee Replacing an Adapter 0 eects 10 Erase the Stored IP Address ccc cece cette eee 10 Remove Operating Power and Disconnect the Ad
19. mment System out print n cmd cmd di readLine trim conti nue obuf2 5 byte ix 1 obuf2 6 byte address cmd di readLine trim II end of FOR loop reading the input text Il purge e key buffer PEO ot IIkeybuf Systemin available Ilif keybuf 0 IIbreak IIkeybuf System in read 11 keybuf System in avallable if keybuf gt 1 I skipent keybuf hi System out println skip keybuf do System in read keybuf while keybuf gt 1 System out printIn Press any key to stop expect 0x40 first 1 I Now loop performing the 10 for loop doing 10 IIfor ioCount 0 ioCount lt 500 ioCount loop doing 10 int c 0 int c2 0 int ix keybuf Systemin available iti dolog 1 System out printin keybuf keybuf if keybuf gt 1 keybuf System in read 24 Test Program Source Code break ix int obuf 5 E os write obuf 0 ix 7 c is read ibuf 0 261 if c lt 0 System out printin mbtest abort break while c lt 7 c lt 6 Oxff amp int ibu System out printin mbtest warning int cx is read ibuf c 261 c if cx lt 0 System out printin mbtest warn break c CX II verify input length against fragmen if int ibuf 5 amp Oxff c 6 System out printin mbtest warning if dolog 1 log_buf obuf ix 7 g
20. o the adapter A node which currently owns the write privilege may write up to three IP addresses 2 words per address to the adapter starting at 4F401 With those addresses stored any of those three nodes may then write to the adapter in addition to the original privileged node This allows up to four nodes to concurrently own write privilege to the adapter If writes continue to occur within the 60 second interval from any of the three privileged nodes no other node may write to the adapter If the timer is allowed to expire any node may write to the adapter Note that this 60 second Write Privilege timer is separate from the Outputs Holdup timer and applies only to the write privilege The 60 second time is a fixed value and is not accessible to the application Any node may read the input data or status information from the adapter 13 Communicating With the Adapter 4F411 hex IP Address Saved This reference serves a dual purpose depending on whether the application issues a Modbus Write command or a Modbus Read command Modbus Write Command Save or Clear IP Address Fora Modbus Write command the reference is treated as a one word register with the application writing one word of data The Modbus Write data may consist of a 1 or 0 zero which causes the adapter to save or clear its current IP address If a data 1 is written to the reference the adapter will save its currently assigned IP address in its non volatile R
21. on Adapter 11 111 1 1 2 1 1 3 Product Overview Function This adapter is installed on any TSX Momentum I O base to form a complete I O module that communicates on an Ethernet network A programmable controller or other host device on the network can then read from the input terminals and write to the output terminals of the I O base The adapter communicates with host devices using Modbus Application Protocol with TCP IP packets It supports both Ethernet Il and IEEE 802 3 framing For information about using Modbus Application Protocol with TCP IP refer to the Ethernet TCP IP Module User Guide part number 840 USE 107 Details of the Modbus protocol are provided in the Modbus Protocol Reference Guide part number PI MBUS 300 For information about the application and field wiring of I O bases refer to the TSX Momentum I O Bases User Manual part number 870 USE 002 Physical Structure Each adapter connects to the internal communication connector of its I O base Clips lock the adapter in place and can be released with a common screwdriver to remove the adapter The user can fill out the front panel wiring label supplied with the I O base to identify the wiring connections at the I O base terminals The adapter is considered open equipment and must be mounted in an enclosure that is approved for the site at which itis installed Operating Voltages and Error Control Power for the adapter and I O base is provid
22. outlen 1 D 0x0002 jus 4 fii Data bits transferred in IEC format Module ID Digital Ss Input words 1 module Output words 1 170 AAO 120 00 Analog 4 Channel Output Module ETHERNET IEC ANA inlen 0 outlen 5 D 0x01C3 az Data bits transferred in IEC format Module ID Input words 0 Analog Output words 5 module m includes 1 parameter word 17 Test Program Source Code H Source response java H Source testl txt 19 Test Program Source Code 3 1 Source response java This J ava program furnishes the looping for data throughput testing as described in Chapter 1 It reads the textfiletest1 txt to get the target addresses and Modbus commands for communicating with the input and output communication adapters The file s contents follow II response java 6 17 98 This is a variation of mbtest java This code I will send a write command to one address and a separate command read II to the second address It will loop performing the read each time but only doing the write when the read command detects a change in the input that was read The loop counter is set as a constant An improvement would be to pass it in the command line The purpose of this program Il is to use an oscilloscope to measure the time elapsed between the input I going high and the output responding to it The IP address
23. ram has failed during execution Flashing constantly Adapter is downloading its executive program Table 5 LAN ACT Indicator Network Activity Indicator State Status Flashing Normal operation Adapter detects network activity Flashing rate indicates the amount of activity May appear steadily On if network activity is high Off Adapter is not detecting any network activity Ethernet Communication Adapter 1 4 1 4 1 1 4 2 Connecting to the Network Network Connector The adapter has one RJ 45 connector for a 10Base T UTP STP Unshielded or Shielded Twisted Pair cable The adapter should be cabled directly to the Ethernet hub Figure 5 Network Connector RJ 45 10Base T for Unshielded or Shielded Twisted Pair UTP STP cable fee Network Labels Global Address and IP Address The adapter has two labels mounted on its end panels One label identifies the adapter s IEEE Global Address MAC address The other identifies its Internet Protocol address IP address The installer records the Global Address and gives it to the network administrator for use in establishing an IP address for the adapter during the BOOTP process at startup When the IP address has been assigned the administrator gives this address to the installer who writes it onto the adapter s IP address label Figure 6 Adapter Labels Global Address and IP Address T IEEE GLOBAL ADDRE
24. t log_buf ibuf c lt write to the second target using t wait until the input has changed if first 1 ibuf 12 amp 0x40 first 0 ix int obuf2 5 1 If if input bit 0x40 is on turn on if expect 0x40 expect 0 obuf2 16 byte obuf2 16 amp obuf2 16 byte obuf2 16 else expect 0x40 obuf2 16 byte obuf2 16 obuf2 16 byte obuf2 16 amp detected unexpected close of channel f 5 response appears fragmented ing response incomplete tation response length mismatch he 2nd buffer expect output bit 0x01 Oxbf bit 40 off 0x01 bit 01 on 0x40 bit 40 on Oxfe bit 01 off 25 Test Program Source Code 052 write obuf2 0 ix 7 c2 is2 read ibuf2 0 261 if c2 lt 0 System out printIn mbtest abort detected unexpected close of channel break while c2 lt 7 c2 lt 6 Oxff amp int ibuf2 5 System out printin mbtest warning response appears fragmented int cx2 is2 read ibuf2 c2 261 c2 if cx2 lt 0 System out printin mbtest warning response incomplete break c2 cx2 if int ibuf2 5 amp dxff c2 6 System out printin mbtest warning response length mismatch if dolog 1 log_buf obuf2 ix 7 gt log_buf ibuf2 c2 lt II check only the modbus response for equality ignore address
25. ting With the Adapter 2 Communication Access Registers Data Registers Configuration Registers a ZEN EZ Status Registers Communicating With the Adapter 2 1 Communication Access Registers Each adapter contains three groups of registers that enable the application to communicate with the I O base module The application accesses the registers to transfer input or output data at the I O base module s field terminals to set or retrieve the module s configuration or to monitor its status All of the registers can be accessed as 4XXXX references by MSTR function blocks in the application program Figure 7 Communication Adapter Access Registers ETHERNET NETWORK DATA REGISTERS DATA INPUT Read Only DATA OUTPUT Write Only CONFIGURATION REGISTERS MODULE TIMEOUT Read or Write MODULE OWNERSHIP Read or Write IP ADDRESS SAVED Read or Write STATUS REGISTERS MODULE STATUS Read Only MODULE ASCII HEADER Read Only STARTING REFERENCE Hex Decimal 40001 400001 40001 400001 4F 001 461441 4F 401 462465 4F 411 462481 4F 801 463489 4FC01 464513 LENGTH 16 Bit Words Module dependent Module dependent 1 on Write 2 on Read 13 Module dependent 12 Communicating With the Adapter 2 1 1 2 1 2 Data Registers 40001 hex Data Input or Output
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