User Manual - Sütron electronic GmbH
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1. For example W h 4BC8 4 B 8 0 1 0 0 1 0 1 1 1 1 0 0 1 0 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Data Block Number Byte word double word number Abbrevi Value Description ation W Data Width DW Double Word 32 Bits DW 4 Double Word 32 Bits W Word 16 Bits W 2 Word 16 Bits BY Byte 8 Bits W Bit access to word address if bit address is specified BY Bit access to byte address if bit address is specified h Hexadecimal Number 4BC8 Numeric Code for Data ID 4B Data Block Number here DB75 C8 Double Word Word Byte Number here Word 200 6 SUTRON 2 25 INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 11 Overview of Function Blocks from S tron electronic Which function block is needed v 57 300 Controller v 57 400 Controller v DSCI T Controller board v Asynchronous with Asynchronous KA synchronisation impulse Y v v Y Interfaces Interfaces Interfaces Interfaces 06 14 18 21 02 10 15 23 71 78 06 14 18 21 02 10 15 23 71 78 64 Bit 80 Bit 64 Bit 80 Bit FC60 FC80 FB80 FC65 FC85 v DSCI T Controller board Y v Asynchronous with Asynchronous peters synchronisat2. 2 19 SUTRON INTERBUS Interface 06 14 18 21 76 Table 2 17 Parameters for the FC20 function Parameter Value Description CONFIGURATION 32 configuration bits for INTERBUS blocks BitO 0 Peripheral entries PF entries are made by the function IB_DIAG in the IBDB Bit 0 1 Peripheral entries PF entries are not made by the func tion DIAG in the IBDB Bit 1 0 User error entries USER entries are made by the func tion DIAG in the IBDB Bit 1 1 User error entries USER entries are not made by the function DIAG in the IBDB Bit2 0 Bus error entries BUS entries are made by the function IB_DIAG in the Bit2 1 Bus error entries BUS entries are not made by the func tion DIAG in the IBDB Bit3 0 Controller entries CTRL entries are made by the func tion DIAG in the Bit3 1 Controller entries CTRL entries are not made by the function IB_DIAG in the Bit4 0 Reserved Bit4 1 Reserved Bit 31 0 Not relevant Bit31 1 This bit must always be set This informs all of the driver blocks that this is a S7 300 DSC controller board DW 16 8000000F No errors are entered into the IBDB DW 16 80000000 All errors are entered into the IBDB 2 20 SUTRON INTERBUS Interface 06 14 18 21 76 Table 2 17 Parameters for the FC20 function Parameter Value
3. ter alien 2 16 2 8 1 Siemens S7 Controller ence erii 2 16 2 8 1 1 Operating Mode Asynchronous 2 16 2 8 1 2 Operating Mode Asynchronous with Synchronization 2 16 2 8 1 3 Configuring the Operating Device as INTERBUS Participant 2 17 2 8 1 4 Phoenix Contact Function Blocks 2 17 2 8 1 5 se ra a ka a amin Ri da a lasa 2 18 2 8 1 6 21 AD aranan 2 22 2 8 1 7 22 MEM WRIT ark a Balak rl o alla PARS 2 23 2 8 1 8 28 eee aaa 2 24 2 8 1 9 Function Blocks from S tron electronic 2 24 2 8 1 10 Decoding the Variable Number sise 2 24 2 8 1 11 Overview of Function Blocks from S tron electronic 2 26 2 8 1 12 Inserting Sources and Function Blocks 2 26 SUTRON Overall Table of Contents 2 8 1 13 FC60 for the Operating Mode 57 400 2 28 2 8 1 14 FC66 for the Operating Mode Asynchronous withS7 300 2 29 2 8 1 15 FC80 for the Operating Mode Asynchronous withS7 400 2 31 2 8 1 16 FC86 for the Operating Mode Asynchronous with S7 300 2 32 2 8 1 17 FC65 for the Operating Mode Asynchronous with Syn
4. UN FC21BusyBit 5 FC21BusyBit CALL FC21 IBDB DB20 MODE SOURCE 0 DEST_AREA 0 DEST_AREA_NR 0 DEST_OFFSET 0 DEST_LENGTH 0 RET FC21RetBit BUSY FC21BusyBit Table 2 18 Parameters for the FC21 function Parameter Value Description IBDB DB20 Number of the global INTERBUS data block Here it is DB20 MODE 1 The function s operating mode Mode 1 here Read from data set 1 This must be parameterized in the IBS CMD SOURCE 0 Data source Not relevant in mode 1 Always 0 DEST_AREA 0 Data destination area Not relevant in mode 1 Always 0 DEST_AREA_NR 0 Number of the data block if the destination area data Not relevant in mode 1 Always 0 DEST_OFFSET 0 Start address in the destination area DEST_AREA Not relevant in mode 1 Always 0 DEST_LENGTH 0 Number of words to be read Not relevant in mode 1 Al ways 0 RET Result bit When the result bit is set the DBW58 of the IBDB contains an error code with the following meaning DBW58 error number 1 to 5 Error number 1 The DEST_AREA_NR parameter has been used to specify DBO as the destination Error number 2 The DEST_AREA parameter has been used to specify an invalid destination area Error number 3 The MODE parameter has been used to specify an in valid operating mode Error number 4 An invalid CR number number for a PCP enabled IN TERBUS participant has been specified in the parame ter SOURCE Error numb
5. PD Index 0x15 Write Variable 2 Bytes Mandatory PD Index 0x16 Write Variable 4 Bytes PD Index 0x40 Read Variable 1 Byte Mandatory PD Index 0x41 Read Variable 2 Bytes Mandatory PD Index 0x42 Read Variable 4 Bytes PD Index 0x84 Write Bit to Byte PD Index 0x85 Write Bit to Word SUTRON 2 3 INTERBUS MMICOM Interface 06 14 18 21 76 2 4 Data Types The data types specify how many bytes are assigned to a single variable Table 2 2 Data types MMICOM Data Access to Length of Comment Type Single Vari able BY Byte 1 Byte Next Byte and Bit also is Located 1 Address Higher W Word 2 Bytes Next Word is Located 1 Address Higher W 2 Word 2 Bytes Next Word is Located 2 Address Higher DW Double Word 4 Bytes Next Double Word is Located 1 Address Higher DW 2 Double Word 4 Bytes Next Double Word is Located 2 Address Higher DW 4 Double Word 4 Bytes Next Double Word is Located 4 Address Higher The access parameter determines the data length that is evaluated by the operating device and the MMICOM service used to handle the variable For example A text with ten characters that starts at the variable 100 access W word is made up of the variables 100 to 104 The following convention applies to data with a data length of more than 4 bytes for example alphanumeric texts tables polling area status messages D
6. SUTRON INTERBUS Interface 06 14 18 21 76 Table 2 17 Parameters for the FC20 function Parameter Value Description FKN_STATE 0 S7 address for the standard function status register This address depends on the controller board s base ad dress and is assigned automatically Therefore enter the value 0 zero MEM_READ Block number 21 for the read driver FC21 MEM_READ MEM_WRITE Block number 22 for the write driver FC22 MEM_WRITE LOAD The interface s module configuration is loaded 0 Flash The configuration is loaded from the parameterization memory This requires programming through the IBS CMD parameterization memory 1 APPLIC The configuration is loaded through the application s function blocks 2 CMD_IB The configuration is loaded via a CMD file and data blocks IN_BOOT This parameter controls the INTERBUS start up only applies if LOAD 0 0 The bus system is started from the configuration the pa rameterization stored on the Flash card contains the bus system start up information 1 The bus system is started with the configuration frame 1 via the initialization driver MODE Operating mode BA of the controller board 0 A SYN Asynchronous 1 A SYN IMP Asynchronous with synchronization impulse acting as an interrupt TIMER NR Number of the timer used by the function SOURCE Number of the parameterization DB for LOAD 2
7. INTERBUS MMICOM Interface 06 14 18 21 76 Connector in the terminal 9 pin D SUB female connector strip for remote bus out Table 2 14 Pin assignment remote bus out INTERBUS Pin Designation Function 1 DO Data Output 2 DI Data Input 3 GND Ground 4 nc Not Connected 5 5 V Power Supply 5 VDC 6 DO Data Output Inverted 7 DI Data Input Inverted 8 nc Not Connected 9 RBST Remote Bus Status 2 6 5 2 2 Wire Remote Bus Cable Operating Device Remote Bus OUT Remote Bus IN 5V RBST 00000 J 2 2 DI DI 7 D GND 5 U GND D SUB D SUB Female Connector Male Connector 9 Pin 9 Pin 2 12 SUTRON INTERBUS Interface 06 14 18 21 76 2 6 5 3 Converting from 8 Wire Protocol to 2 Protocol Using bus terminal IBS 24 BK Operating Device Remote Bus OUT Remote Bus IN w EA 5 DO DO 5 15 DO 2 9 0 XXXXXX i 71 22 DI DI dg 3 14 GND UJ GND D SUB D SUB Female Connector Male Connector 9 Pin 25 Pin 2 13 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 7 Error Messages Error messages are displayed on the operating device along with a code and sub code Error messages are composed as follows Communication Error Code XXXXX Subcode XXXXX Retrie
8. 2 From the context menu select Insert with ID Code The Insert Device dialog opens 3 Enter the ID code in either the hexadecimal 2F or decimal format 47 4 Enter the value 8 for the Process Data Channel 5 For the Device Type select the Remote Bus Device button 6 Click OK to confirm your input The Device Description dialog opens Here you can enter a description of the op erating device 7 Click OK to confirm this dialog The configuration is complete Save the configuration to the parameterization mem ory 2 8 1 4 Phoenix Contact Function Blocks Phoenix Contact provides the following functions and data blocks for the operating mode Asynchronous with Synchronization Impulse FC20 INIT IB FC21 READ FC22 FC24 IB DIAG FC28 IB SYNC and DB20 IBDB When operating the S7 300 controller in the operating mode Asynchronous you need the INTERBUS data block also 2 17 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 Table 2 17 Parameters for the FC20 function 2 8 1 5 FC20 INIT_IB The FC20 function is called up once when the controller OB100 is started up It controls the start up behavior of the controller board and initializes the INTERBUS data block IBDB DB20 in the example below with the required data The settings for timer T1 are fixed Parameter The busy bit must be set when the function is called up Otherw
9. SUTRON visualization control communication User Manual Connection to INTERBUS MMICOM Interface 06 14 18 21 76 Part Number 80 860 659 Version 3 Date 08 12 2009 Valid for TSwin net 4 x visualization control communication Version Date Modifications 1 26 07 2005 First edition 2 24 11 2005 Validation extended chapter Important Notes added overview of function blocks corrected 3 08 12 2009 New Layout interface 76 added MPM description FC66 FC86 This manual including all illustrations contained herein is copyright protected Use of this manual by any third party in departure from the copyright provision is forbidden No part of this manual may be reproduced trans lated or electronically or photographically archived or altered without the express written consent from S tron electronic GmbH Violations shall be cause for damage liability S tron electronic reserves the right to make any changes that contribute to technical improvement S SUTRON Overall Table of Contents Overall Table of Contents 1 IMponant Notes TR 1 1 1 1 1 1 12 Safety Notes ius urs Ue leon einen 1 1 13 ROI 1 1 1 4 Target Group sienne 1 1 2 INTERBUS Interface 06 14 18 21 76 2 1 2 1 Integration of the Operating Devices 2 1 2 2
10. Osto20s 10s 2 6 1 3 Floating Point Numbers in the Siemens Format This parameter specifies whether floating point numbers are exchanged in the Sie mens specific format or IEEE format Table 2 9 Floating point number in the Siemens format Configurable Values Default Value IEEE Format Siemens Format X 2 6 1 4 Optimized Data Transmission This parameter specifies whether optimized data transmission should be used For using optimized data transmission it is recommended to fulfill certain considerations while programming the controller Table 2 10 Optimized data transmission Configurable Values Default Value ON OFF X See chapter Considerations for Optimized Data Transmission on page 2 4 2 8 SUTRON INTERBUS Interface 06 14 18 21 76 2 6 2 Polling Area The polling area is used to manage the write coordination byte WCB the serial message channel and the LEDs in the function keys This area is continuously polled by the operating device The polling area is structured as follows Table 2 11 Additional function polling area MMICOM Bit Number 15 817 0 Variable X WCB Reserved Variable X 1 Serial Message Channel High Byte Serial Message Channel Low Byte Variable X 2 LED 1 to 4 LED 5to8 Variable X 3 LED 9 to 12 LED 13 to 16 Variable X 4 LED 17 to 20 LED 21 to 24 Variable X 5 LED 25 to 28 LED 29 to
11. DB101 P_IN 10 P_OUT 10 DBOFFSET 0 VAROFFSET 0 Table 2 23 Parameters for the FC80 function Parameter Value Description P_IN 10 Start address of the operating device s inputs INTE GER Example 10 PEB10 P_OUT 10 Start address of the operating device s outputs Example 10 PAB10 IBDB DB20 INTERBUS data block DEST Destination address of the operating device s data in the controller SOURCE Source address of the operating device s data in the con troller DBOFFSET DB offset which is added to the data block address of the variables VAROFFSET Variable offset which is added to the byte address of the variables 2 31 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 16 FC86 for the Operating Mode Asynchronous with 57 300 This function decodes the data transferred by the operating device and executes read and write accesses accordingly The data width is 10 bytes Because this block accesses the MPM Multi Port Memory of the controller board the operating device must be parametrized with the INTERBUS project tool CMD into a INTERBUS data set of its own This INTERBUS data set may not be updated with commands of FC21 MEM_READ FC22 MEM_WRIT within the OB1 on the I O range The calculation of the parameters PIN POUT is carried out with the following for mula PIN POUT MPM offset Interbus dataset CMD processdata assignment IBS
12. DEST_AREA DEST_AREA_NR DEST_OFFSET DEST LENGTH 10 1 BUSY M10 0 CALL FC 65 10 POUT AB10 DBOFFSET 0 VAROFFSET 0 FC51 UN M 11 0 5 M 11 0 CALL FC 22 IBDB DB20 MODE r SOURCE_AREA r SOURCE AREA NR SOURCE OFFSET SOURCE_LENGTH DESTINATION 11 1 BUSY 11 0 O O Pi 2 37 A 2 SUTRON INTERBUS Interface 06 14 18 21 76 2 38 SUTRON Index Considerations for optimized data transmission 2 4 E Error messages INTERBUS MMICOM Interface 06 14 18 21 Pi en ates eel 2 14 Important notes 1 1 Intendedi use 1 1 INTERBUS Interface 06 14 18 21 76 2 1 M MMICOM MMI COMprofile 2 1 O Optimizeddatatransmission 2 8 Considerations 2 4 Protocol parameters INTERBUS MMICOM Interface 06 14 18 21 2 7 5 Safety notes 1 1 1 1 Syntax diagram 2 9 T Target gro p 2 2 ees 1 1 SUTRON A 1 2 SUTRON SUTRON
13. Options dialog opens 6 Select the Board s Interrupt Mode check box This ensures that the parameters for the process alarm interrupt line 1 and alarm OB 40 are transferred to the controller system 7 Click OK to confirm your settings To parameterize data sets to transfer the process data carry out the following steps 1 Select the controller board 2 From the context menu select Settings The Controller Board Settings dialog opens 3 Open the IBS Data Records tab 2 16 SUTRON INTERBUS Interface 06 14 18 21 76 The IBS Data Records tab allows you to specify the following parameters Table 2 16 Parameters for IBS data sets Parameter Description Record Choose the number of the data set you want to spec ify the parameters for Area Specify the destination area DB E M or the source area A DB M respectively in the controller Data Block If you selected DB for the destination source area enter the number of your target source data block Offset Byte Enter the start address of the data to be transferred into the selected target source area Length Byte Enter the length of the data to be transferred 8 bytes for operating devices 4 Click OK to confirm your settings 2 8 1 3 Configuring the Operating Device as an INTERBUS Participant To add an operating device to the INTERBUS carry out the following steps 1 Select the controller board
14. in the controller board the par ticipants input and output areas are placed sequentially in the memory of the con troller in the same order that they are physically installed in the bus If the Logical Address operating mode is selected in the controller board the location of the input and output areas can be placed freely in the controller memory The lo cation of these areas is also independent of the sequence of bus participants 2 2 MMICOM Profile The MMICOM profile distinguishes between the following three basic data channels on the INTERBUS 1 Direct process data channel 2 Indirect process data channel 3 Parameter channel 2 2 1 Direct Process Data Channel Direct process data is cyclical data that remains constant while the device is in oper ation They are not acknowledged and are incorporated cyclically into the process data channel for example 16 inputs of an input module or bit information of a key field device class A1 or B1 2 1 SUTRON INTERBUS Interface 06 14 18 21 76 2 2 2 Indirect Process Data Channel Indirect process data is data that does not remain constant while the device is in op eration and changes depending on external events or requirements Process data identifiers PD index are used to determine the structure of this data The handshake between both communication partners is defined using a status control byte 2 2 3 Parameter Channel In addition to t
15. its own This INTERBUS data set may not be updated with commands of 21 MEM_READ FC22 MEM_WRIT within the OB1 on the I O range The calculation of the parameters PIN POUT is carried out with the following for mula PIN POUT MPM offset Interbus dataset CMD processdata assignment IBS participant CMD Interbus dataset offset Explanation For the INTERBUS data sets the MPM offset Interbus dataset is defined as fol lows DS1 0 DS2 128 DS3 256 DS4 384 DS5 512 all values decimal CMD processdata assignment IBS participant See CMD Project Device gt process data gt parameter assignments CMD Interbus dataset offset See CMD Project Controller board gt settings gt IBS data records for inputs outputs gt parameter offset Example all values are decimal A operating device in INTERBUS data set 3 MPM_offset_Interbus_dataset 256 CMD_Interbus_dataset_offset 256 CMD processdata assignment IBS participant 256 for I O PIN POUT 256 256 256 256 DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Parameter Call FC 66 PIN 10 POUT 10 IBDB DB20 DEST DB10 DBX0 0 SOURCE DB10 DBX8 0 VAROFFSET 0 DBOFFSET 0 Table 2 22 Parameters for the FC66 function Parameter Value Description PIN 10 Offset within the INTERBUS input data start address of the operating device s input data
16. location of the IN and OUT data and must be called for each connected operating device If necessary the function block inter prets the requests received from the operating device In this context either a read or a write function is carried out which makes the assignment between the variable number and the actual controller variable If necessary the data is copied the con troller in an event controlled manner As a result the controller has a say in what data is written and read by the operating device All services requests required to run the operating device originate in the operating device The operating device has client functionality The controller only reacts to the requests of the operating device and therefore fulfils the functions of a server 2 2 SUTRON INTERBUS Interface 06 14 18 21 76 2 3 1 Specification for INTERBUS The following parameters are used to run operating devices on the INTERBUS Table 2 1 Parameters for the operating devices on the INTERBUS Parameter Value Width of the Data Channel Indirect Process Data with Status Word 4 Words 8 Bytes and Output Data Direct Process Data None Parameter Channel None Identcode PD Channel with Input 2F 474 Function group specifica tion within the MMICOM B3 Variable Input G1 Variable Reguest MMICOM Services Used PD Index 0x14 Write Variable 1 Byte Mandatory
17. mode was being edited when the error occurred 56 Variable has wrong base size The subcode indi Wrong access type specified cates the variable number in decimal format which was being edited when the error occurred 57 Handshake error The subcode indicates the vari Handshake bits were not set able number in decimal format which was being correctly by controller edited when the error occurred 2 14 SUTRON INTERBUS Interface 06 14 18 21 76 Table 2 15 Error messages INTERBUS MMICOM interface 06 14 18 21 76 Code Subcode Error Type Possible Cause 58 Access error The subcode indicates the variable No valid data cycles are exe number in decimal format which was being edited cuted on the INTERBUS when the error occurred 59 Wrong variable number received The subcode indi The 8 byte user data are not cates the variable number in decimal format which consistent There is an error was being edited when the error occurred within the controller board 60 Wrong PD index received The subcode specifies The 8 byte user data are not the received PD Index in decimal format consistent There is an error within the controller board By setting up the following system variables in one of the screens in the project you can log the error messages with the operating device to log the number of the error codes 59 ComOv
18. participant CMD Interbus dataset offset Explanation For the INTERBUS data sets the MPM offset Interbus dataset is defined as fol lows DS1 0 DS2 128 DS3 256 DSA 384 DS5 512 all values decimal CMD processdata assignment IBS participant See CMD Project Device gt process data gt parameter assignments CMD Interbus dataset offset See CMD Project Controller board gt settings gt IBS data records for inputs outputs gt parameter offset Example all values are decimal A operating device in INTERBUS data set 3 MPM_offset_Interbus_dataset 256 CMD_Interbus_dataset_offset 256 CMD_processdata_assignment_IBS_participant 256 for 1 0 PIN POUT 256 256 256 256 DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Parameter Call FC 86 PIN 10 POUT 10 IBDB DB20 DEST DB10 DBX0 0 SOURCE DB10 DBX10 0 DBOFFSET 0 VAROFFSET 0 Table 2 24 Parameters for the FC86 function Parameter Value Description PIN 10 Offset within the INTERBUS input data start address of the operating device s input data Example 10 E10 POUT 10 Offset within the INTERBUS output data start address of the operating device s output data Example 10 PAB10 IBDB DB20 INTERBUS data block Example DB20 DEST DB10 DBX0 0 Destination address of the operating device s data in the controller E
19. ve aa m ali an alna 2 1 2 2 1 Direct Process Data Channel 2 1 2 2 2 Indirect Process Data Channel 2 2 2 2 3 Parameter Channel askeri meli ilan badana oaan e asl a ana 2 2 2 3 Connecting the Operating Device sese 2 2 2 3 1 Specification for INTERBUS 2 3 24 Data Types iore pente 2 4 2 55 Considerations for OptimizedDatalransmission 2 4 2 0 Programming RS 2 7 2 6 1 Protocol Parameters 2 7 2 6 1 1 MMICOM Handshake Timeout 2 7 2 6 1 2 Delay until Connection Set Up sis 2 8 2 6 1 3 Floating Point Numbers in the Siemens Format 2 8 2 6 1 4 Optimized Data Trarismission cincti ert thon ita re iret geo det Fee cda 2 8 2 6 2 PROMI ANGE p 2 9 2 6 3 Status Messages a lend dete SEI va dez ER ilin 2 9 2 6 4 PUES VMAX M 2 9 2 6 5 Physical Connection 2 11 2 6 5 1 Pin ASSIONM NE i ent 2 11 2 6 5 2 2 Wire Remote Bus Cable 2 12 2 6 5 3 Converting from 8 Wire Protocolto2 WireProtocol 2 13 2 Error Messages eae 2 14 2 8 ever
20. 0 DIAG PARA FKN START FKN PARA FKN STATE MEM READ MEM WRITE LOAD Ho NG U 2 35 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 BOOT 0 MODE 0 TIMER_NR T1 SOURCI 0 CONFIGURATION z DW 16 8000000F RET 10 1 BUSY M10 0 UN M 100 5 M 100 UN M 10 UN M 10 OB1 for 57 400 OB1 Lu 11 60 P P10 0 DESTP DB101 DBX0 0 Byte 8 SOURCEP DB101 DBX8 0 Byte 8 POUT P P10 0 DBOFFSET 0 VAROFFSET 0 2 8 1 20 Example for the Operating Mode Asynchronous with Synchroni zation Impulse OB1 40 100 FC50 and FC51 for 57 300 OB1 CALL FC 28 IBDB DB20 READ_FC FC50 WRITE_FC FC51 CYCLE_OB TRUE RET M14 0 BE OB40 CALL FC 28 IBDB DB20 READ_FC FC50 WRITE_FC FC51 CYCLE_OB FALSE RET M12 0 BE OB100 UN M 10 0 5 M 10 0 R M 10 1 CALL FC 20 IBDB DB20 COM_ADR 256 DIAG_STATE 0 DIAG PARA 0 FKN START 0 FKN PARA 0 FKN STATE 0 MEM READ 21 MEM_WRITE 22 LOAD 0 2 36 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 BOOT MODE TIMER_NR T1 SOURCE 0 CONFIGURATION DW 16 8000000F RET M10 1 BUSY M10 0 UN M 10 0 UN M 1051 50 UN M 10 0 5 10 0 CALL 21 IBDB DB20 MODE SOURCE
21. 0 Data destination Not relevant in mode 1 Always 0 RET Result bit When the result bit is set the DBW60 of the IBDB contains an error code with the following meaning DBW60 error number 1 to 5 Error number 1 The SOURCE_AREA_NR parameter has been used to specify DBO as the source Error number 2 The SOURCE_AREA parameter has been used to spec ify an invalid source area Error number 3 The MODE parameter has been used to specify an in valid operating mode Error number 4 An invalid CR number number for a PCP enabled IN TERBUS participant has been specified in the parame ter DESTINATION Error number 5 A data set not enabled activated in IBS CMD has been specified Busy 1 Function active This bit must be set during call up 2 23 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 8 FC28 IB_SYNC The function FC28 controls the protocol in the operating mode Asynchronous with Synchronization Impulse and monitors the transfer of consistent data greater than 16 bit In addition it requires functions for reading and writing I O data FC50 and FC51 in the following example These functions must be programmed without pa rameters Parameter Call FC 28 IBDB DB20 READ_FC FC50 WRITE_FC FC51 RET M10 1 Table 2 20 Parameters for the FC28 function Parameter Value Description IBDB DB20 Numb
22. 32 2 6 3 Status Messages Status messages are the static assignment of flags bits in the controller to plain text messages in the operating device The area for the status messages has the following structure Table 2 12 Status messages MMICOM Bit Number 15 8 7 0 Variable Message Message 16109 8 to 1 Variable X 1 Message Message 32 to 25 24 to 17 Variable X 2 Message Message 48 to 41 40 to 33 2 6 4 Input Syntax The following image illustrates the structure of the input syntax for variables in the programming software BY K gt wD CDW Do c Wa Figure 2 1 COR gt h Number gt x h Number gt gt h Syntax diagram INTERBUS MMICOM SUTRON 2 9 INTERBUS Interface 06 14 18 21 76 In the programming software the Variable dialog opens to define controller vari able Variable d Protocol Protocol name ee Address Low bit no High bit no Figure 2 2 Variable dialog Variable name Enter any name for a variable in this field Address Enter an address according to the syntax diagram above Low Bit No and High Bit No If you specify a single bit of a byte word or double word enter the same bit number in each field Example To specify the address of the data block 100 b
23. BB10 W 100 10 DB100 DBW10 DW 100 10 DB100 DBD10 Examples for PC WORX BY100 byte array byte 100 W100 word array word 100 DW100 double word array double word 100 2 5 SUTRON INTERBUS Interface 06 14 18 21 76 BIT access Without optimized data transmission up to 8 16 32 bits which have the same byte word or double word address are transmitted together With optimized data transmission also bits which are located in consecutively ad dressed bytes or words are transmitted together Table 2 4 access Bit Variables on one Screen Number Number Of of Bits Telegrams Variable Address Low High With With Bit No Bit No out Optim Optim 1 BY 100 10 10 0 8 1 1 8 BY 100 10 7 7 1 BY 100 10 0 0 16 2 1 8 BY 100 10 7 7 9 BY 100 11 0 0 16 100 11 7 7 1 BY 100 10 0 0 32 4 1 8 100 10 7 7 9 BY 100 11 0 0 16 BY 100 11 7 7 17 BY 100 12 0 0 24 BY 100 12 7 7 25 BY 100 13 0 0 32 BY 100 13 7 7 1 W 100 10 0 0 16 1 1 16 W 100 10 15 15 1 W 100 10 0 0 32 2 1 16 W 100 10 15 15 17 W 100 12 32 W 100 12 15 15 1 DW 100 10 0 0 32 1 1 32 DW 100 10 31 31 2 6 SUTRON INTERBUS Interface 06 14 18 21 76 BYTE access Table 2 5 BYTE access Byte Variables on one Screen Number Number Of of Bytes Telegrams With With out Opt
24. Description RET When the result bit is set 1 DBW56 of the IBDB con tains an error code with the following meaning High Byte DBB56 error number Low Byte DBB57 number of the defective step Error number 1 Timeout Error number 2 Negative result for Stop and reconfiguration request Error number 3 Negative result for Start data transfer Error number 4 Parameter LOAD invalid Error number 5 Communication register cannot be read basic address is set incorrectly or hardware defective Error number 6 Error in parameterization sequence SOURCE parame ter The diagnostic status register displayed is entered in the IBDB at DBW 76 diagnostic parameter register displayed is en tered in the IBDB at DBW 78 The incorrect service code is entered the IBDB at DBW 74 and is used for internal purposes BUSY 1 Function active This bit must be set during call up 2 21 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 6 FC21 MEM_READ The function FC21 MEM_READ reads data from the controller board and copies it to the specified destination area of the controller Parameter The number of the INTERBUS data block IBDB in the following example DB20 is transferred as a parameter The busy bit must be set when the function is called up Otherwise no action will be taken
25. Example 10 E10 POUT 10 0 Start address of the outputs the operating device Example P P10 0 PAB10 IBDB DB20 INTERBUS data block DEST Destination address of the operating device s data in the controller 2 29 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 Table 2 22 Parameters for the FC66 function Parameter Value Description SOURCE Source address of the operating device s data in the con troller DBOFFSET DB offset which is added to the data block address of the variables VAROFFSET Variable offset which is added to the byte address of the variables 2 30 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 15 80 for the Operating Mode Asynchronous with 57 400 An instance data block must be specified when the function block is called up The protocol data for inputs and outputs stored in this block are only visible to the FB88 This function block decodes the data transferred by the operating device and exe cutes read and write accesses accordingly The data width is 10 bytes The function block access the peripheral addresses directly DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Each of the available I O points of the module are mapped to byte position 10 in the IN and OUT frame of the module and are not influenced by the function block Parameter Call 80
26. chronization Impulse with 57 300 2 34 2 8 1 18 FC85 for the Operating Mode Asynchronous with Synchronization Impulse with 57 300 2 35 2 8 1 19 Example for the Operating Mode 2 35 2 8 1 20 Example for the Operating Mode Asynchronous with Synchronization Impulse 2 36 A IS Rete A 1 ii 5 2 SUTRON Important Notes 1 Important Notes T 1 1 Symbols The symbols in this manual are used to draw your attention on notes and dangers Danger This symbol is used to refer to instructions which if ignored or not carefully followed could result in personal injury Note This symbol indicates application tips or supplementary notes Reference to source of information This symbol refers to detailed sources of information on the current topic 1 2 Safety Notes Read this manual carefully before using the software Keep this manual in a place where it is always accessible to all users user manual in particular the safety notes must be observed by all person nel working with the software and the programmed device Observe the accident prevention rules and regulations that apply to the operating site Installation and operation must only be carried out by qualified and trained per sonnel 1 3 Intended Use The software has to be used for programming operating devices exclusively Ev ery other use is not permitte
27. d 1 4 Target Group All configuration and programming work in connection with the automation system must be performed by trained personnel only e g qualified electricians electrical en gineers The configuration and programming personnel must be familiar with the safety con cepts of automation technology 1 1 SUTRON Important Notes S SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 INTERBUS Interface 06 14 18 21 76 To select the correct interface variant in the programming software take note of the ID on the label attached to the operating device The two digits after the slash indicate the interface variant printed in bold in the ex ample displayed below For example TP32ET 159032 2 1 Integration of the Operating Devices INTERBUS is an open field bus concept that is supported by a number of manufac turers of sensor technology and actuator devices This means that in addition to us ing the same bus to connect to the operating devices several other participants can be connected to the controller for example decentralized inputs and outputs The operating device is integrated as a slave in the 2 wire remote bus In this context the operating device occupies a data width of 4 words or 8 bytes on the INTERBUS The controller maps each operating device with 8 bytes IN data and 8 bytes OUT data in the memory map If the Physical Addressing operating mode is selected
28. e peripheral addresses and not the process image DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Parameter Call FC 60 PIN P P10 0 POUT DEST P P10 0 P DB101 DBX0 0 Byte 8 SOURCE P DB101 DBX8 0 Byte 8 VAROFFSET DBOFFSET 0 0 Table 2 21 Parameters for the FC60 function Parameter Value Description PIN P P10 0 Start address of the P inputs of the operating device Ex ample P P10 0 PEB10 POUT P P10 0 Start address of the P outputs of the operating device Example P P10 0 PAB10 DEST Memory address of the input data This address must NOT be overwritten by other program parts SOURCE Memory address of the output data This address must NOT be overwritten by other program parts DBOFFSET DB offset which is added to the data block address of the variables VAROFFSET Variable offset which is added to the byte address of the variables 2 28 SUTRON INTERBUS Interface 06 14 18 21 76 2 8 1 14 FC66 for the Operating Mode Asynchronous with 57 300 This function decodes the data transferred by the operating device and executes read and write accesses accordingly The data width is 8 bytes Because this block accesses the MPM Multi Port Memory of the controller board the operating device must be parametrized with the INTERBUS project tool CMD into a INTERBUS data set of
29. epending on the access type the data is processed with the corresponding one two or four byte access If there is other data to be processed it is assumed that this data is located under the next higher variable number in each case 2 5 Considerations for Optimized Data Transmission The usage of optimized data transmission is not permitted to projects with PC WORX To optimize the data transmission and as a result accelerate the speed of screen composition at the operating device you can activate the Optimized data transmis sion in the protocol parameters In this case the available user data of 4 byte 32 bit is used more efficient and the number of communication telegrams is reduced To make this available you have to address the variables consecutively as bit byte or word access in the corresponding address area 2 4 SUTRON INTERBUS Interface 06 14 18 21 76 The following table shows the possible combinations Table 2 3 Combinations for optimized data transmission DB X DB X DB X DB X Number Of Offset Y Offset Y 1 Offset Y 2 Offset Y 3 Telegrams With With out Optim Optim BY 1 1 BY BY 2 1 BY BY 2 2 BY BY 2 1 BY BY BY 3 2 BY BY BY 3 1 BY BY BY 3 1 BY BY BY BY 4 1 W low W high 1 1 W low W high W low W high 2 1 The syntax for INTERBUS MMICOM is not controller specific Examples for Siemens S7 controllers BY 100 10 DB100 D
30. er 5 A data set not enabled activated in IBS CMD has been specified Busy Function active This bit must be set during call up 2 22 6 SUTRON INTERBUS Interface 06 14 18 21 76 2 8 1 7 22 MEM_WRIT The function FC22 writes data from the controller s source area to the specified des tination area on the controller board Parameter The number of the INTERBUS data block IBDB in the following example DB20 is transferred as a parameter The busy bit must be set when the function is called up Otherwise no action will be taken UN FC22BusyBit 5 FC22BusyBit CALL FC 22 IBDB MODE SOURCE_AREA SOURCE_AREA_NR SOURCE_OFFSET SOURCE_LENGTH DESTINATION RET BUSY Il w N Il oo O O Pp FC22RetBit FC22BusyBit Table 2 19 Parameters for the FC22 function Parameter Value Description IBDB DB20 Number of the global INTERBUS data block Here it is DB20 MODE 1 The function s operating mode Here mode 1 writing to data set 1 This must be parameterized in IBS CMD SOURCE AREA 0 Data source relevant in mode 1 Always 0 SOURCE_AREA_NR_ 0 Number of the data block if the source area data Not relevant in mode 1 Always 0 SOURCE_OFFSET 0 Start address in the SOURCE_AREA Not relevant in mode 1 Always 0 SOURCE_LENGTH 0 Number of words to be written Not relevant in mode 1 Always 0 DESTINATION
31. er of the global INTERBUS data block Here it is DB20 READ_FC Function to be called to read the input data WRITE_FC Function to be called up to write the output data RET 0 Function was executed with no errors 1 Error The function was exited 2 8 1 9 Function Blocks from S tron electronic Unlike an S5 controller the S7 controller has a byte structure in all memory areas This means that you must use the following designations for variables with more than four bytes in the controller W 2 instead of W for The polling area The parallel message system Thetime update from and to the controller Therecipe buffer DW 4 instead of DW for Alphanumeric variables The length of the variable must be divisible by four If a variable with a memory space requirement of more than four bytes is inadvert ently assigned the incorrect data ID the user data is incorrectly interpreted The vari able does not issue any correct values Caution When you are starting up the operating device a one byte read access is carried out on the variable with the number zero in a test communication The data read is not interpreted that is the read function block does not have to decode this variable number 2 8 1 10 Decoding the Variable Number The function blocks write and read function decodes the received variable number as follows 2 24 SUTRON INTERBUS Interface 06 14 18 21 76
32. errunCount to log the number of the error codes 60 ComFrameCount to log the number of all other error codes SUTRON 2 15 INTERBUS Interface 06 14 18 21 76 2 8 Applications 2 8 1 Siemens 57 Controller 2 8 1 1 Operating Mode Asynchronous For the controllers S7 300 and S7 400 the controller boards are normally run in the asynchronous mode of operation To set the operating mode with IBS CMD G4 carry out the following steps 1 Select the controller board 2 From the context menu select Settings The Controller Board Settings dialog opens 3 Open the Bus Operation tab 4 From the Bus Operation field select the Asynchronous operating mode 5 Click OK to confirm your settings 2 8 1 2 Operating Mode Asynchronous with Synchronization Impulse You can operate the INTERBUS on both the S7 300 and the S7 400 in the asyn chronous with synchronization impulse operating mode It is however recommended to use the S7 400 in the asynchronous mode of op eration only To set the operating mode Asynchronous with Synchronization Impulse carry out the following steps 1 Select the controller board 2 From the context menu select Settings The Controller Board Settings dialog opens 3 Open the Bus Operation tab 4 From the Bus Operation field select the operating mode Asynchronous with Synchronization Impulse 5 Click the Bus Operation Options button The Bus Operation
33. he process data channel the parameter channel allows an FMS like background communication to be carried out In this context the bytes of a saved log are sequentially transferred via the INTERBUS This process is usually advanta geous for slower communication processes where larger data volumes are being used and it does not delay the equidistant transfer of time critical data 2 3 Connecting the Operating Device In the INTERBUS the operating device is run in the indirect process data channel Neither the parameter channel nor the direct process data channel is used The user data is interpreted in accordance with the MMICOM profile The connection to the bus is implemented using dc decoupled RS485 drivers The actual bus protocol is handled by the INTERBUS protocol chip On the controller side a manufacturer specific INTERBUS master controller board is required preferably with dc decoupling If the controller board in the controller has an 8 wire remote bus interface 25 pin use the bus terminal IBS 24 BK LC2 to convert to the 2 wire remote bus 9 pin Both the INTERBUS connection and the MMICOM protocol are independent of the controller As a result only variable numbers and no real controller addresses are transferred in the MMICOM protocol The variable number is referenced to the vari able in the controller A function block must be called in the controllers main program This function block is assigned the parameters for the
34. im Optim BY 100 10 1 1 1 BY 100 10 BY 100 11 BY 100 10 BY 100 12 BY 100 10 BY 100 11 BY 100 12 BY 100 10 BY 100 11 100 13 BY 100 10 BY 100 11 BY 100 12 BY 100 13 D D NIN DM For 3 consecutive Bytes 2 accesses are made The first 2 bytes are accessed with one WORD access and the third byte is accessed with a BYTE access In case of the third byte is at the end of a data block this will not cause a communication error WORD access Table 2 6 WORD access Word Variables on one Screen Number Number Of of Words Telegrams With With out Optim Optim W 100 10 1 1 1 100 10 W 100 12 2 2 1 2 6 Programming 2 6 1 Protocol Parameters With the protocol parameters you can adapt the communication of the controller used 2 6 1 1 MMICOM Handshake Timeout This parameter specifies how long the operating device waits for an acknowledge ment from the controller Table 2 7 handshake timeout Configurable Values Default Value 0 ms to 65535 ms 100 ms 2 7 SUTRON INTERBUS Interface 06 14 18 21 76 2 6 1 2 Delay until Connection Set Up This parameter specifies the waiting time after which the operating device starts the communication Table 2 8 Delay until connection set up Configurable Values Default Value
35. ion impulse Y Y Y Interfaces Interfaces Interfaces Interfaces 06 14 18 21 02 10 15 23 71 78 06 14 18 21 02 10 15 23 71 78 64 Bit 80 Bit 64 Bit 80 Bit FC66 FC86 FC65 FC85 Figure 2 4 Overview of function blocks from S tron electronic 2 8 1 12 Inserting Sources and Function Blocks The supplied S tron STL files are imported into the SIMATIC Manager using the en try Sources To do this select the menu item External Source from the menu In sert The function blocks required depend on the controller type and the connection of the operating device see diagram The files are located in the programming software directory under FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 02 10 15 23 71 78 300 ASYNC FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 02 10 15 23 71 78 N300 400 ASYMSI 2 26 SUTRON INTERBUS Interface 06 14 18 21 76 FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 02 10 15 23 71 78 400 ASYNC FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 06 14 18 21 300 ASYNC FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 06 14 18 21 300_400 ASYMSI FBs INTERBUS SIEMENS S7 MMI COM Schnittstelle 06 14 18 21 400 ASYNC The numbers in the square brackets indicate the operating device s interface type The imported STL sources must subsequently be converted to the S7 function block format using the STL Edi
36. ise no action will be taken UN FC20BusyBit S FC21BusyBit CALL FC 20 IBDB COM_ADR DIAG_STATE DIAG_PARA FKN_START FKN_PARA FKN_STATE MEM_READ MEM_WRITE LOAD BOOT MODE TIMER_NR SOURCE G 0 CONFIGURATION DW 16 8000000F RET FC20RetBit BUSY FC20BusyBit DB20 256 uo od e M D Il I Parameter Value Description IBDB DB20 Number of the global INTERBUS data block This is the data block in which the FC20 function speci fies the settings COM_ADR S7 base address of the controller board DIAG_STATE 0 S7 address for the diagnostic status register This address depends on the controller board s base ad dress and is assigned automatically Therefore enter the value 0 zero DIAG_PARA 0 S7 address for the diagnostic parameter register This address depends on the controller board s base ad dress and is assigned automatically Therefore enter the value 0 zero FKN_START 0 S7 address for the standard function start register This address depends on the controller board s base ad dress and is assigned automatically Therefore enter the value 0 zero FKN_PARA 0 S7 address for the standard function parameter register This address depends on the controller board s base ad dress and is assigned automatically Therefore enter the value 0 zero 2 18
37. s XXXXX Table 2 15 Error messages INTERBUS MMICOM interface 06 14 18 21 76 Code Subcode Error Possible Cause 2 The controller has transferred data to the operating device but the operating device has not reguested the data The subcode specifies the received PD in dex in decimal format 40 Illegal system variable The project contains an illegal system variable 50 Malfunction bit not set by controller The subcode specifies the received PD Index in decimal format 51 Online bit not set by controller The subcode speci Bus is not running PLC pro fies the received status control byte in decimal for gram is missing or controller mat is in STOP mode 52 Standard bit and or index bit not set by control Bus is not running PLC pro ler The subcode specifies the received status control gram is missing or controller byte in decimal format is in STOP mode 53 Wrong PD index received The subcode specifies the received PD Index in decimal format 54 Handshake error receive timeout The subcode in PLC program is missing or dicates the variable number in decimal format controller is in STOP mode or which was being edited when the error occurred the function block for the op erating device is not active 55 Handshake error send timeout The subcode indi PLC program is missing or cates the variable number in decimal format which controller is in STOP
38. s added to the byte address of the variables Example 0 2 34 6 SUTRON INTERBUS Interface 06 14 18 21 76 2 8 1 18 FC85 for the Operating Mode Asynchronous with Synchronization Impulse with 57 300 This function decodes the data transferred by the operating device and executes read and write accesses accordingly The data width is 10 bytes Accesses are made to the data sets which were parameterized in IBS CMD DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Parameter Call FC 85PIN z EB10POUT AB10DBOFFSET 0VAROFFSET 0 Table 2 26 Parameters for the FC85 function Parameter Value Description PIN EB10 Start address of the operating device s inputs Example EB10 POUT AB10 Start address of the operating device s outputs Example AB10 DBOFFSET 0 DB offset which is added to the data block address of the variables Example 0 VAROFFSET 0 Variable offset which is added to the byte address of the variables Example 0 2 8 1 19 Example for the Operating Mode Asynchronous OB1 and OB100 for S7 300 When calling up the function FC20 INIT_IB 100 you must set the MODE rameter to zero 0 OB1 Call FC 66 PIN 10 POUT 10 IBDB DB20 DEST DB10 DBX0 0 SOURCE DB10 DBX8 0 DBOFFSET 0 VAROFFSET 0 BE 100 UN M 10 0 S 10 0 R M 10 1 CALL FC 20 IBDB COM ADR DIAG STATE
39. tor S tron s functions and function blocks use the register indirect cross area address ing technique If interrupt controlled program calls are permitted in the program cy cle the contents of the address registers 1 and 2 and possibly also the local data stack may need to be saved in addition to the contents of both accumulators For more information see the section on how to avoid errors when calling function blocks Avoiding Errors when Calling Blocks in the programming manual for your S7 con troller system software S7 300 400 program design The operating device can access the controller data on a bit byte word or double word basis Bit access is possible on a byte or word address As the MMICOM profile itself does not transfer data type IDs these are transferred using the variable num bers Each variable is uniquely identified using a variable number This number is de fined during programming in the programming software The functions must be called cyclically in the application program A separate func tion block must be called for each connected operating device 2 27 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 2 8 1 13 FC60 for the Operating Mode Asynchronous with 57 400 This function decodes the data transferred by the operating device and executes read and write accesses accordingly The data width is 8 bytes To optimize the transfer time the function block directly accesses th
40. xample DB10 DBX0 0 2 32 SUTRON INTERBUS MMICOM Interface 06 14 18 21 76 Table 2 24 Parameters for the FC86 function Parameter Value Description SOURCE DB10 DBX10 0 Source address of the operating device s data in the con troller Example DB10 DBX10 0 DBOFFSET DB offset which is added to the data block address of the variables Example 0 VAROFFSET Variable offset which is added to the byte address of the variables Example 0 6 2 33 SUTRON INTERBUS Interface 06 14 18 21 76 2 8 1 17 FC65 for the Operating Mode Asynchronous with Synchronization Impulse with 57 300 This function decodes the data transferred by the operating device and executes read and write accesses accordingly The data width is 8 bytes Accesses are made to the data sets which were parameterized in IBS CMD DBOFFSET and VAROFFSET also permit access to data blocks and byte addresses greater than 255 Parameter Call FC 65PIN Table 2 25 Parameters for the FC65 function EB10POUT AB10DBOFFSET 0VAROFFSET 0 Parameter Value Description PIN EB10 Start address of the operating device s inputs Example EB10 POUT AB10 Start address of the operating device s outputs Example AB10 DBOFFSET 0 DB offset which is added to the data block address of the variables Example O VAROFFSET 0 Variable offset which i
41. yte 10 bit 0 enter the following values Address BY100 10 Low Bit No 0 High Bit No 0 If you specify the address of several bits bitstream of one byte word or double word enter the lower significant bit number in the Low Bit No field and the higher significant bit number in the High Bit No field 2 10 SUTRON INTERBUS Interface 06 14 18 21 76 Example To specify the address of the data block 100 byte 10 bits 0 to 3 enter the following values Address BY 100 10 Low Bit No 0 High Bit 3 The syntax for INTERBUS MMICOM is not controller specific Examples for Siemens S7 controllers BY 100 10 DB100 DBB10 W 100 10 DB100 DBW10 DW 100 10 DB100 DBD10 Examples for PC WORX BY100 byte array byte 100 W100 word array word 100 DW100 double word array double word 100 2 6 5 Physical Connection 2 6 5 1 Pin Assignment 1 5 5 1 00000 0000 6 9 9 6 Figure 2 3 9 D SUB male connector strip and female connector strip Connector in the terminal 9 pin D SUB male connector strip for remote bus in Table 2 13 Pin assignment remote bus INTERBUS Pin Designation Function 1 DO Data Input 2 DI Data Output 3 GND Ground 4 nc Not Connected 5 nc Not Connected 6 DO Data Input Inverted 7 DI Data Output Inverted 8 nc Not Connected 9 nc Not Connected 2 11 SUTRON
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