User Manual - Sütron electronic GmbH
Contents
1. User Manual Connection to PROFIBUS DP Part Number 80 860 655 Version 2 Date 22 11 2005 Valid for TSwin net 4 0x TSwin net 4 1x Version Date Modifications 1 25 07 2005 First edition 2 22 11 2005 Validation extended chapter Important Notes added 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 Sutron electronic GmbH Violations shall be cause for damage liability S tron electronic reserves the right to make any changes that contribute to technical improvement 6 SUTRON ELECTRONIC GMBH Overall Table of Contents Overall Table of Contents 1 Important Notes 2 PROFIBUS DP 2 6 1 2 6 1 1 2 6 1 2 2 6 1 3 2 6 1 4 2 6 1 5 2 6 1 6 2 6 1 7 2 6 1 8 1 1 is ta a 1 1 SENI e aa deeeedesanasenteyesernneniaes 1 1 Intended Use ale his 1 1 Target Group terere b Rr ege eon a ba d RARE REM X REB ER 1 2 U 2 1 Specification for PROFIBUS DP nanna ann nt 2 1 DIAGNOSIS ka a a A 2 1 Data Prorsus e A a e einen 2 2 Request telegram nn 2 2 Response Telegram nn 2 3 User Data2. the operating device uses the cyclical input output image for data exchange between the master and the slave The data content to be interpreted is defined for both partners in a data profile All services required for running the operating device originate in the operating de vice The operating device has client functions The controller reacts to the requests of the operating device It has server functions The master module must interpret the incoming data according to the profile and also respond according to the profile This is carried out using a function block in the con troller that is able to interpret the requests in the IN data and write a response to the OUT data 2 1 Specification for PROFIBUS DP The specification of the operating device in PROFIBUS DP is defined using the de vice data base GSD file SE03081A GSD 2 1 1 Diagnosis The operating device implements the station related diagnosis 5 byte user diagnosis data is transferred dst byte error number 1 communication error in the operating device 2nd and 3rd byte communication error code 4th and 5th byte communication error subcode The communication error code and subcode are the values that are also displayed on the operating device S sutron al ELECTRONIC GMBH PROFIBUS DP 2 2 Data Profile To allow direct data access to the different data areas in a controller a data profile must be agreed between the master and the s
3. Figure 2 1 Syntax diagram for bit access PROFIBUS DP 1 BY Number Number DB Number BY 2 S7 gt C DB Number DBB Number Figure 2 2 Syntax diagram for byte access PROFIBUS DP 1 The number in front of the point is a word or double word address The number after the point specifies the byte number within the word double word 2 The number in front of the point is a byte address mW DB Number gt S D8 Number DBW Figure 2 3 Syntax diagram for word access PROFIBUS DP gt DW gt Number DB Number DW S7 DB j Number DBD Figure 2 4 Syntax diagram for double word access PROFIBUS DP S sutron ELECTRONIC GMBH PROFIBUS DP 2 4 Physical Connection 2 4 1 Pin Assignment 5 1 00000 0000 9 6 Figure 2 5 9 pin D SUB female connector strip Connector in the terminal 9 pin D SUB female connector strip Table 2 15 Pin assignment PROFIBUS DP Pin Designation Function 1 nc Not Connected 2 nc Not Connected 3 RxD TxD P Received Data Transmitted Data Plus 4 CNTR P Repeater Control Signal Plus 5 DGND Data Transmission Potential 6 VP Supply Voltage of Terminators Plus 7 nc Not Connected 8 RxD TxD N Received Data Transmitted Data Minus 9 CNTR N Repeater Control Signal Minus 2 4 2 Cable for PROFIBUS DP In the wiring d
4. PROFO2ST S5D The function block interprets the following bytes in the telegram as follows Byte 2 bit O is interpreted as a byte code for a byte access to a word address Table 2 26 FB111 Byte code in byte 2 Value Meaning 0 DL High Byte 1 DR Low Byte MByte 3 contains the data block number Byte 4 contains the data word number within the DB MByte 5 and MByte 6 contain the bit mask for the logical operation Byte 7 contains the logical instruction AND OR Siehe Kapitel Data Profile auf Seite 2 2 2 22 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 6 2 7 Protocol Parameters for the Siemens S5 Series For the protocol specifv the parameters shown in the figure below Protokollparameter Profibus DP LXI max Wartezeit f r Antwort ms fi 000 Ex Verz gerung bis Verbindungsaufbau ms 5000 Abbruch Stationsnummer 3 Hilfe Telegrammlange 20 Standard IV Gleitkommazahlen im Siemens Format AdreBweite l Figure 2 19 Protocol parameters for PROFIBUS using a Siemens S5 2 6 2 8 Defining Variables Specify the variable addresses in either the hexadecimal notation or using the follow ing syntax formats DB Number B Figure 2 20 Bit access for PROFIBUS using a Siemens S5 1 BY M Number Number ta Figure 2 21 Byte access for PROFIBUS using a Siemens S5 gt w ne Number gt Figure 2 22 Word access for PROFIB
5. iii ei ER 2 3 Reading and Writing Bytes esee 2 4 FROACIMGMBMS ER ER 2 4 Writing dz c 2 4 Programming annehmen 2 4 Protocol Parameters sss nnn nnns 2 4 Maximum Waiting Time For Response 2 5 Delay until Connection Set Up serrar nnnnnna arr n nennen 2 5 Station Number nina 2 5 Telegram Lengti reb aringi a A a drin a idi E ada 2 5 Floating Point Numbers in the Siemens Format sse 2 5 Timer and Counter in the Siemens Format 2 6 Byte Order 2 6 Address Width ee a inne 2 6 Polling Are ai iii eoe eres E rer re 2 6 Input Syntax ne nei 2 7 Physical Connection c ooo kernel 2 8 PIM ASSIQrilTient ord eee att aa dk nahmen rn 2 8 Cable for PROFIBUS DP sssserennenennnnnnnnzznzznnrznenzznnnaznnnnnnnzzenanzanana 2 8 Transfer Speed and Line Length nn 2 9 Error Messages dona aede la qe ee Feeder tacet dod ieda 2 10 hose mee a 2 12 Siemens S7 Controllers sisses ai ena a 2 12 Hardware Configurator nti der hen de b ft E a tag fak f 2 12 PROFIBUS Function Blocks nee nanna mrar nr nar ann anna n nanna 2 15 Importing the STL Source Files essen 2 15 General Funetioning inte a ecard eee 2 16 SFG14 E nctionifig oe vc eti rr lat ta da ba f 2 17 FG80 F nctioning iid ceteri ei ied ii ssesie ie reas 2 18 SFCS FUNCION snsnsvi rece t re i redi ce a e aate etate 2 18 Example for an OB urne t en eo EUER ite
6. refers to detailed sources of information on the current topic 1 2 Safety Notes Read this manual carefully before using the operating device Keep this manual in aplace where it is alwavs accessible to all users Proper transportation handling and storage placement and installation of this product are prerequisites for its subsequent flawless and safe operation This user manual contains the most important information for the safe operation of the device The user manual in particular the safety notes must be observed by all person nel working with the 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 device is designed for use in the industry The device is state of the art and has been built to the latest standard safety re quirements However dangerous situations or damage to the machine itself or other property can arise from the use of this device The device fulfills the requirements of the EMC directives and harmonized Euro pean standards Any modifications to the system can influence the EMC behav ior S sutron ii ELECTRONIC GMBH Important Notes 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 electricia
7. 2 11 Floating point numbers in the Siemens format Configurable Values Default Value OFF X ON S sutron i ELECTRONIC GMBH PROFIBUS DP 2 3 1 6 Timer and Counter in the Siemens Format This parameter specifies wether timer and counter are exchanged in the Siemens specific format or IEEE format Table 2 12 Timer and counter in the Siemens format Configurable Values Default Value OFF X ON 2 3 1 7 Byte Order Specify the byte order for word and double word addresses Siemens High Low Bosch Low High Table 2 13 Byte order Configurable Values Default Value Low High X High Low 2 3 1 8 Address Width Specify the address width you want the operating device to use when accessing con troller addresses Table 2 14 Adress width Configurable Values Default Value 1 Byte Address 2 Word Address X 4 Doppel Word Ad dress 2 3 2 Polling Area Limits applying to the poll area The variable must be word oriented The area must be contiguous The controller must be able to access this area in bit mode The operating device must be able to access this area in word mode 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 3 3 Input Svntax The following figure illustrates the structure of the input svntax for variables in the programming software S7 DB Number DBX
8. 2 18 6 SUTRON ELECTRONIC GMBH Overall Table of Contents 2 6 1 9 Defining Variables eiit tea de e ta ai te a 2 6 2 Siemens S5 Controllers 2 6 2 1 Parameter Settings for IM308B nn 2 19 2 6 2 2 Data ConsisSteney mili iii a e a shits 2 20 2 6 2 3 PLO sr foto 11 L EP 2 20 2 6 2 4 FB110 Evaluation Block nn nanna n ann anna nanna nn 2 21 2 6 2 5 FB111 Reading from the Data BIOCK eee ennnennnnn nn n nn rna rna rna 2 22 2 6 2 6 FB112 Writing to the Data Block enne nnne etna 2 22 2 6 2 7 Protocol Parameters for the Siemens S5 Series ssssssssssssssss 2 23 2 6 2 8 Definido A EIOS EEE TEEMPM 2 6 3 Rexroth Controllers sss 2 6 3 1 Configuration in WINSPS 2 6 3 2 Configuration in PROFIT 2 6 3 3 Protocol Parameters for BM DP12 seen reac 2 28 2 6 3 4 Protocol Parameters for the Bosch CL Series sssssssssssseeee 2 29 2 6 3 5 Defining Variables biis REN A 1 ii 6 SUTRON ELECTRONIC GMBH Important Notes 1 important Notes A gt 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 wich if ignored or not carfully followed could result in personal injury Note This symbol indicates application tips or supplementary notes Reference to source of information This symbol
9. 3 Transfer Speed and Line Length With the PROFIBUS data can be transferred using different transfer speeds How ever the higher the transfer speed the shorter the maximum permitted line length The values listed in the following table applv to the cable tvpe A which is more closelv specified in DIN E 19245 part 3 Table 2 19 Transfer speed versus line length for PROFIBUS Baud Rate Bit s Line Length m 187 500 1000 500 000 400 1500 000 200 3 000 000 100 6 000 000 100 12 000 000 100 S sutron B ELECTRONIC GMBH PROFIBUS DP 2 5 Error Messages Error messages are displaved on the operating device along with a code and sub code Error messages are composed as follows Communication Error Code XXXXX Subcode XXXXX Retries XXXXX Table 2 20 Fehlermeldungen PROFIBUS DP Code Subcode Error Type Possible Cause 1 Slave is currentiv not readv Packets out of sequence Protocol framing error Timeout CRC error Parity error Send process aborted Receive process aborted O MO I NI oO a BR wy MD Buffer too small for cyclic data eo No cyclic data defined A M Cyclic data already defined o The selected protocol is not supported Oo Receive buffer overrun gt o Undefined system variable 50 Error initializing the SPC3 1 Buffer too large 2 No ini
10. 5 BT_PB345 pxl SoftSPS FBs Profibus BOSCH WINSPS PLC BT_PBPLC px Error Handling in the PLC Program Errors can be entered in the return code byte 4 of the response telegram If no error occurs byte 4 must be deleted Possible errors are DB does not exist Function Blocks Supplied You must configure the operating device as the slave using n Byte kons Daten E A n byte cons data I O in the DP master module If you are using interrupts you must save the scratch flags and the four registers used in the interrupt OB Inserting the Library Files in WINSPS 1 Start WinSPS 2 Copy the corresponding pxl file to the ZSO directory of the PLC project You can only copy the file to the appropriate project directory as modules of the in correct controller type are not recognized 3 Assign the library in the toolbar Example FC10 R BT PB345 4 Open the editor in the PLC software 2 24 6 SUTRON ELECTRONIC GMBH PROFIBUS DP Example OB1 Select the PROFIBUS block from the Edit Parameter list menu Parameterizing the call up function Example For two operating devices DEF f r Ger t 1 DEF 10 EZ Basisn DEF 10 AZ Basisn DEF DB50 DBNR DEF 0 WDNR DEF 20 TLNG DEF f r Ger t 2 DEF 10 EZ_Basisn2 DEF 10 AZ Basisn2 DEF DB50 DBNR2 DEF 0 WDNR2 DEF 20 TLNG2 Aufruf Ger t 1 BA BT 345 SFC10 PO W EZ_Basisn P1 W AZ_Basisn P2 DBNR P3 W WDNR P4 W TLNG A
11. 8 12 or 16 bytes for the telegram length S sutron ELECTRONIC GMBH PROFIBUS DP 2 6 3 4 Protocol Parameters for the Bosch CL Series Set the following parameters for the protocol Table 2 33 Protocol parameters for the Bosch CL series Parameter Value Maximum Waiting Time for Response ms 1000 Delay Until Connection Set Up ms 5000 Station Number 3 Telegram Length 20 Floating Point Number in the Siemens Format Inactive Byte Order is High Low Inactive Address Width 2 2 6 3 5 Defining Variables Specify the variable addresses in either the hexadecimal notation or using the follow ing syntax formats gt B pp gt Number B Number Mr DB Number Figure 2 25 Bit access for PROFIBUS using the Bosch CL series 1 BY mr Number eT DB Number BY 2 Figure 2 26 Byte access for PROFIBUS using the Bosch CL series p w y Number s Figure 2 27 Word access for PROFIBUS with the Bosch CL series u DW Number gt Figure 2 28 Double word access for PROFIBUS using the Bosch CL series S sutron T ELECTRONIC GMBH PROFIBUS DP In the variable list of the programming software vou can also enter the addresses in hexadecimal notation Table 2 34 Hexadecimal notation for addresses Variable Name Address hex Low High PLC Access PLC Address Bit Bit Vari DW H124B Double Word DB18 D150 t
12. AB80 Figure 2 13 How the function blocks work 2 6 1 5 SFC14 Functioning SFC14 reads the data from the peripheral inputs starting with the start address LADDR and copies the data to a specific target RECORD The amount of data to be copied is contained in the RECORD parameter Table 2 21 SFC14 parameters Name Meaning LADDR Specifies the start address for the peripheral inputs of the operating device hexadecimal RET_VAL Return value of the SFC14 in case of an error RECORD Copy target for the read peripheral data S sutron a ELECTRONIC GMBH PROFIBUS DP 2 6 1 6 FC80 Functioning FC80 reads the data transferred from the operating device from the copy target RECORD of SFC14 Based on the telegram transferred it carries out a read or write access It then transfers the data to be transferred to the operating device to the source data area of SFC15 Table 2 22 FC80 parameters Name Meaning Record_In Start address for the input data parameter RECORD of the SFC14 Record Out Start address for the output data parameter RECORD of the SFC15 2 6 1 7 SFC15 Functioning SFC15 reads the data from the source RECORD and copies the data to the periph eral outputs starting with the address LADDR The amount of data to be copied is contained in the RECORD parameter Table 2 23 SFC15 parameters Name Meaning LADDR Specifies the start address for
13. Byte Content 1 Number of User Data Access Return Code Error 0x00 User Data 1st Byte oa AJOJN User Data 2nd Byte User Data nth Byte 2 2 3 User Data The user data are located from bvte 5 onwards to end of the telegram 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 2 4 Reading and Writing Bvtes Depending on the telegram length and access up to 28 bvtes of user data can be transferred during reading and writing operations When bytes are being read and written the user data appears in the telegram as of byte five 2 2 5 Reading Bits When the system reads bits it reads a byte word or double word based on the ad dress width of the data area to be read The operating device masks out the requested bits and displays the data in line with the display settings 2 2 6 Writing Bits Only an individual bit is set or deleted The controller receives a bit mask and link information from the operating device via the request telegram The bit is set or deleted in the target address using the bit mask and the link information The byte order of the bit mask for word addresses is oriented to the protocol param eters specified for the byte order Table 2 5 Writing to a byte address Byte Content 5 Bit Mask 6 Logical Operation 0 AND 12 OR Table 2 6 Writing to a word address Byte Content 5 Bit Mask LOW 6 Bi
14. DP each connected operating device The assignment is made via the parameter ization of the PROFIBUS DP master module in the Siemens PLC Controllers in the S5 series usually use the module IM308B or IM308C 2 6 2 1 Parameter Settings for IM308B A device type file for the COMET200 programming software is available to parame terize the IM308B BTO81ATD 200 The Configuration option is used to configure the terminal of the DP slave S sutron i ELECTRONIC GMBH PROFIBUS DP The following parameters are specified 1 Position of the operating device in the peripheral area i e the I O addresses on which the operating device is located 2 The DP identifier via module 0 Table 2 24 The DP identifier via module 0 Item Value O X Length 4 6 8 14 16 Format Word Consistency 0 Word Consistency 3 Data for the parameterization telegram are not applicable no entry Using a program module this module configuration is loaded into the module with the parameter settings of the entire master module 2 6 2 2 Data Consistency A data consistency over the entire length set must be applied for exchanging data between the operating device and the master module However the master modules IM308B and IM308C only ensure a consistency with a data width of up to one word Program specific measures in the PROFIBUS DP driver of TesiMod operating de vices ensure consistency up to the maximum data le
15. US using a Siemens S5 Cow vy gt Number Figure 2 23 Double word access for PROFIBUS using a Siemens S5 S sutron T ELECTRONIC GMBH PROFIBUS DP 2 6 3 Rexroth Controllers The PLC program communicates with the PROFIBUS DP via the input output periph eral area Each participant including each operating device in the PROFIBUS DP is assigned an IN and OUT data channel The channel is assigned using the parameterization of the Bosch controllers PROFI BUS DP master module The module MP DP12 is used in Bosch controllers 2 6 3 1 Configuration in WINSPS Evaluation of the control bvtes in the PLC Program The PLC program must cvclicallv poll the peripheral area that is assigned to the op erating device Using the sequential number it must check whether a new request has been received from the operating device In addition bytes 1 and 2 must be cop ied unchanged from the request telegram to the response telegram and 0x00 must be written to byte 3 You require the following modules for this task They are contained in a subfolder of the programming software s installation folder Table 2 27 Function blocks for the programming software WINSPS Controller Function Block CL200 FBs Profibus BOSCH WINSPS CL200 BT_PB2 px CL300 FBs Profibus BOSCH WINSPS CL345 BT_PB345 pxl CL400 FBs Profibus BOSCH WINSPS CL345 BT_PB345 pxl CL500 FBs Profibus BOSCH WINSPS CL34
16. ange Ende 95 Teilproze abbild v r Herstellerspezifische Daten maximal 14 Byte hexadezimal durch Komma oder Leerzeichen getrennt Abbrechen Hilfe Figure 2 11 Dialog Properties DP Slave You can select your entries for address length and unit as needed The settings de picted below generate the value 191 in the ID byte 2 6 1 2 PROFIBUS Function Blocks You need S tron function blocks to interpret and evaluate the data The cyclical call sequence of the function blocks must be adhered to 2 6 1 3 Importing the STL Source Files Import the STL AWL files supplied with the product in the Simatic Manager Proceed as follows 1 Select the Sources folder in the Simatic Manager 2 From the Insert menu select the menu item External Source The following dialog opens Suchen in oe 300_400 7 cf FI FC70 AWL Dateiname JFEDAWL Dateityp Sources awl gr7 sel inp 2g sdg sd Abbrechen Figure 2 12 Dialog Insert External Source 3 From your main TSwin directory navigate to the subdirectory FBs PROFI BUS SIEMENS S7 300_400 4 Select the STL file FC70 AWL and select Open to confirm The name is now entered in the Sources folder in the S7 Manager 5 Open the STL file and compile and convert it into the S7 function block format 2 15 6 SUTRON ELECTRONIC GMBH PROFIBUS DP gt gt 2 6 1 4 General Functioning The peripheral data i
17. de for a byte access to a word address Table 2 30 Byte code in byte 2 Value Meaning 0 Odd Address Low Byte 1 Even Address High Byte MByte 3 contains the data block number Byte 4 contains the data word number within the DB The program module doubles the data word number for the even numbered byte number in the DB Function Block BT WRITE The function block BT WRITE interprets the subsequent bytes in the telegram as fol lows Byte 2 bit O is interpreted as a byte code for a byte access to a word address Table 2 31 Byte code in byte 2 Value Meaning 0 Odd Address Low Byte 1 Even Address High Byte Byte 3 contains the data block number within the DB MByte 4 contains the data word number within the DB 0 to 255 MByte 5 and MByte 6 contain the bit mask for the logical operation MByte 7 contains the logical instruction AND OR 2 27 6 SUTRON ELECTRONIC GMBH PROFIBUS DP Parameterization of the BM DP12 Module Set the parameters for the module using the Bosch DP software The device data base GSD file SE03081A GSD which is supplied is directly read in by the DP software This means that the data required to set the parameters of the operating devices are automatically available Select the operating device with the required data width The function block copies bytes 1 and 2 unchanged from the request telegram to
18. epicted below the potential difference between the data reference po tentials DGND of all connections are NOT to exceed 7 V Ensure that no compensating current flow through the bus cable shield Install a sep arate equipotential bonding conductor wi DETR pI DI RxD TxD P DI Y DI 8 BN BN 3 RXD TXD N Figure 2 6 Connecting cable PROFIBUS DP 6 SUTRON ELECTRONIC GMBH PROFIBUS DP There are two cable specifications for PROFIBUS FMS and PROFIBUS DP Table 2 16 Cable specification for PROFIBUS Parameter Cable type A Cable type B Wave Impedance 135 to 165 Ohm for f 3 to 20 MHz 100 to 135 Ohm for f gt 100 MHz Cable capacity lt 30 pF m lt 60 pF m Wire cross section gt 0 34 mm 0 22 mm Loop Impedance 110 Ohm km Signal attentuation max 9 dB max 9 dB Cable tvpe twisted pair 1 x 2 2x2 1 x4 wires twisted pair1x 2 2 x 2 1 x 4 wires Shielding Copper braided shielding or braided Copper braided shielding or braided shielding foil shielding shielding foil shielding Cable recommendations Table 2 17 Cable recommendations for PROFIBUS Field of Application Manufacturer Order Number Standard Siemens 6XV1 830 0AH10 Trailing cable Siemens 6XV1 830 3BH10 Connector recommendations Table 2 18 Connector recommendations for PROFIBUS Manufacturer Order Number Siemens 6ES79 OBA20 OXAO 2 4
19. ersystem 1 Profit standard il G vo MMI TesiMod BT Universalmodul 8 Byte Daten E 12 Byte Daten E 16 Byte Daten E 20 Byte Daten E 24 Byte Daten E 28 Byte Daten E 32 Byte Daten E 8 Byte kons Daten E 3 TesiMod BT 12 Byte kons Daten E A gt 3 16 Byte kons Daten E A Steckplatz Baugruppe DP Kennung Bestellnummer MAR 20 Byte kons Daten E A 24 Byte kons Daten E74 28 Byte kons Daten E74 32 Byte kons Daten E74 HA Gateway Dr cken Sie F1 um Hilfe zu erhalten Figure 2 10 Hardware configuration You must also set the parameters for the operating device as a DP slave Proceed as follows 1 Click on the element Universal Module and keeping the mouse button pressed drag and drop the element to the top line in the table The pointer becomes a cross Release the mouse button The item is entered into the table 2 Select the menu item Object Properties from the Edit menu 3 Specify the properties as shown below S sutron ELECTRONIC GMBH PROFIBUS DP Eigenschaften DP Slave Adresse Kennung E Typ aus Eingang x Direkteingabe r Ausgang Adresse L nge Einheit Konsistent ber Anfang go fi 6 Byte si gesamte L nge Ende 95 Teilproze abbild z r Eingang Adresse L nge Einheit Konsistent ber Anfang go fi 6 Byte Y gesamte L
20. lave The first four bvtes of the telegram length set are used as follows Telegram sequential number and length Definition of the access Definition of the data area 2 2 1 Request telegram Table 2 1 Request telegram Byte Content 1 Number of user data sequential number of telegram 2 Access 3 Offset Depends on Byte Or Low High der Setting 4 High Low 5 User Data 1st Byte 6 User Data 2nd Byte n User Data nth Byte Byte 1 Number of User Data Table 2 2 Number of User Data Bit Content 0 Number of User Data in Bytes 1 Specifies the number of bytes for the user data transfer Sequential Number of the Telegram Identification number for each communication process 0 initialization cycle 1 7 normal sequential number NN OO oO AJOJN 2 2 6 SUTRON ELECTRONIC GMBH PROFIBUS DP Bvte 2 Access Table 2 3 Access Bit Content 0 Byte Number For Word Access 0 First Byte 1 Second Byte Reserved oa AJOJN Access 00 Bit 01 Byte 02 Word 03 Double word Data Direction 0 Read 1 Write Byte 3 and 4 Offset These bytes contain the address for accessing a data area Byte 5 ff User Data The user data are located from byte 5 onwards to the end of the telegram 2 2 2 Response Telegram Table 2 4 Response telegram
21. le SE03081A GSD can be used to set the parameters of the operating devices in the PLC software This file is available in a subdirectorv of the programming software and in our Internet download area 2 6 1 Siemens S7 Controllers The following dialog boxes and the way in which they are used may vary in the dif ferent versions of Step7 software The procedure for defining a PROFIBUS DP slave is the same in all versions but is not described in this documentation The dialog boxes depicted here were developed for version 5 1 of an S7 300 controller 2 6 1 1 Hardware Configurator To integrate the operating device into the PROFIBUS DP structure you must firstly introduce the operating devices into the system Proceed as follows 1 Start the Hardware Configurator in S7 2 From the Options menu select the menu item Install New GSD The following dialog opens Neue GSD installieren Suchen in C TYP GSD e amp ek EJ Dateiname SE03081A GSD Dateityp GSD Dateien Fg si Abbrechen Figure 2 7 Dialog Install New GSD 3 From your main TSwin directory navigate to the subdirectory FBs Profi bus TYP GSD 4 Select the file SE03081A GSD 5 Click Open to confirm your selection 2 12 6 SUTRON ELECTRONIC GMBH PROFIBUS DP In the hardware catalog the operating device is then listed as follows Hardware Katalog xi Poi stena el G vo ei TesiMod BT Universalmodul 8 Byte Da
22. ngth which can be specified that is 32 bytes 2 6 2 3 PLC Program Evaluation of the Control Bytes The PLC program must cyclically poll the peripheral area that is assigned to the op erating device Using the sequential number it must check whether a new request has been received from the operating device FB110 carries out this task FB110 is parameterized with the peripheral address of the corresponding operating device to ensure that only one function block is required to connect several operat ing devices FB110 must also copy bytes 1 and 2 unchanged from the request to the response telegram and 0x00 must be written to byte 3 Take note of the consistency settings when reading and writing to the peripheral area Also see the COMET200 manual Processing user data Separate read and write function blocks that are called by FB110 are used to process user data The read and write function blocks process the user data in line with the data profile Error Handling Errors can be entered in the return code byte 4 of the response telegram If no error occurs byte 4 must be deleted 2 20 6 SUTRON ELECTRONIC GMBH PROFIBUS DP One possible error is DB does not exist 2 6 2 4 FB110 Evaluation Block The description for this function block is for version 2 0 and higher PROFO2ST S5D The function block FB uses MW246 MW254 as scratch flag The function block also needs a separate data word for each o
23. ns electrical en gineers The configuration and programming personnel must be familiar with the safety con cepts of automation technology i S sutron ELECTRONIC GMBH PROFIBUS DP 2 PROFIBUS DP Profibus DP provides a manufacturer and controller independent data transmission protocol The Profibus DP is a speed optimized Profibus variant that is speciallv tal lored to communication between programmable controllers and decentralized pe ripheral devices Profibus DP is implemented in the operating device and meets the requirements of parts 1 and 3 of the German standard DIN 19245 It also corresponds to the Euro pean field bus standard EN 50170 As the operating device fulfills standardization requirements it can be successfully integrated as a slave into the Profibus DP All operating devices can be linked using an integrated Profibus DP additional mod ule You can also link several operating devices to one master controller The entire PROFIBUS DP protocol is handled by the protocol chip SPC3 Transfer speeds of up to 12 MBaud are possible The operating device is used in the bus as a decentralized module that occupies up to 256 inputs and outputs The size can be programmed from between 8 and 32 byte IN data and between 8 and 32 byte OUT data Data transfer is carried out via the peripheral area The input output image is exchanged cyclically between the master and operating device via the bus In this context
24. o D153 Var2 W H124B Word DB18 D150 and D151 Var3 BY H124B Byte DB18 D151 Var4 BY H124B 1 1 Bit DB18 D150 Bit 5 Var5 B H124B 13 13 Bit DB18 D151 Bit5 a S sutron ELECTRONIC GMBH Index A Index C Cable PROFIBUS DP eee 2 8 Important notes L 1 1 Intended USE 1 1 P PROFIBUS DP sisien tette ret aaa 2 1 Data profile irre ei 2 2 Request telegram esses 2 2 Response telegram ssssse 2 3 Protocol parameters PROFIBUS DP sene 2 4 S Safety holes te ei inte ket taeda 1 1 Sia 1 1 T Target group iiit tette eb 1 2 6 SUTRON ELECTRONIC GMBH Index A 2 ELECTRONIC GMBH 6 SUTRON ELECTRONIC GMBH S tron electronic GmbH Kurze StraBe 29 D 70794 Filderstadt Phone 0049 711 77098 0 Fax 0049 711 77098 60 E mail doku suetron de Internet www suetron com 6 SuTRON ELECTRONIC GMBH
25. ofibus BOSCH PROFI CL350400 BT_MAIN PCO FBs Profibus BOSCH PROFI CL350400 BT_READ PCO FBs Profibus BOSCH PROFI CL350400 BT_WRITE PCO FBs Profibus BOSCH PROFI CL350400 0B1 PCO CL500 FBs Profibus BOSCH PROFI CL500 BT_MAIN P5O FBs Profibus BOSCH PROFI CL350400 BT_READ P5O FBs Profibus BOSCH PROFI CL350400 BT_WRITE P5O FBs Profibus BOSCH PROFI CL350400 0B1 P50 Function Block BT_MAIN Structure of the block Terminal 1 Terminal 2 EZ10 EZ20 Sue m 0x00 BT MAIN Pe T AZ10 AZ20 Figure 2 24 Structure ofthe BT_MAIN S sutron ELECTRONIC GMBH PROFIBUS DP Function Block BT MAIN Call Up Example Call up in OB1 OB1 Organisationsbaustein PERERA AAA REAR RE OR FER RE KIER IR A IER RAK Profibus DP Koomunikation mit Bedienger t Beispiel zur Einbindung im OB1 REAR AA ARERR AAA ASA ERA AAI AAA ARRAS KE CR Befehle notwendig ftir Profibus L W EZ2 A Adresse muss mit Koppeladresse bereinstimmen T W A AZ2 nur f r CL400 Einmal pro Bedienger t aufrufen BA BT MAIN 4 Aufruf f r das erste Bedienger t H PO W K10 lt Adresse des Eingangsbereichs P1 W K10 lt Adresse des Ausgangsbereichs P2 W DBO lt Nummer des Datenbausteins P3 W DO lt Datenwortnummer PE Function Block BT_READ The function block BT_READ interprets the subsequent bytes in the telegram as fol lows Byte 2 bit O is interpreted as a byte co
26. perating device The data word is transferred as a parameter during the call The telegram sequential number is saved in this data word FB110 cyclically checks the contents of byte 1 bits 5 to 7 If the value 0 is contained here the telegram number memory is reset If in byte 1 bits 5 to 7 are not equal to the content of the telegram number memory a new request telegram has been received from the operating device and this must be evaluated and a response sent FB110 is called cyclically in OB1 with the corresponding parameters for each oper ating device Terminal 2 PW136 Terminal 1 PW128 0x00 FB110 EA bis 4 PI 1 P Bereich Ausgange PW128 PW136 l Figure 2 18 Structure of FB110 S sutron lia ELECTRONIC GMBH PROFIBUS DP UD 2 6 2 5 FB111 Reading from the Data Block The description for this function block is for version 2 0 and higher PROFO2ST S5D The function block interprets the following bytes in the telegram as follows Byte 2 bit O is interpreted as a byte code for a byte access to a word address Table 2 25 FB111 Byte code in byte 2 Value Meaning 0 DL High Byte 1 DR Low Byte MByte 3 contains the data block number Byte 4 contains the data word number within the DB Siehe Kapitel Data Profile auf Seite 2 2 2 6 2 6 FB112 Writing to the Data Block The description for this function block is for version 2 0 and higher
27. s processed using the functions SFC14 and SFC15 ofthe S7 CPU SFC14 reads the peripheral data and SFC15 writes the data to the periphery FC80 takes on the data provided by SFC14 and calls the read or write function and transfers the data read to SFC15 The local data stack of FC80 FC81 and FC82 is used to process protocol data SFC14 FC70 FC80 and SFC15 must be called cyclically in the program The following cyclical call sequence must be adhered to 1 SFC14 2 FC70 FC80 3 SFC15 The functions FC80 FC81 and FC82 use the register indirect cross area address form If interrupt controlled program calls are permitted in the program cycle the con tents 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 The operating device can access the controller data on a bit byte word or double word basis Bit access is possible to a byte address As the protocol profile itself does not transfer data type code these are transferred using the variable numbers Each variable is uniquely identified using a variable number This number is defined during programming 2 16 6 SUTRON ELECTRONIC GMBH PROFIBUS DP The following graphic shows how the function blocks work Peripherie Eingange DB80 PEB80 SFC14 LADDR RECORD_IN FC80 Peripherie Ausgange RECORD_OUT SFC15 LADDR P
28. t Mask HIGH 7 Logical Operation 0 AND 1 2 OR 2 3 Programming 2 3 1 Protocol Parameters With the protocol parameters you can adapt the communication of the controller used 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 3 1 1 Maximum Waiting Time For Response This parameter specifies how long the operating device waits for a response from the controller Table 2 7 Maximum waiting time for response Configurable Values Default Value 1 ms to 65535 ms 1000 ms 2 3 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 1000 ms to 65535 ms 5000 ms 2 3 1 3 Station Number Specifies the station number of the operating device within the PROFIBUS DP struc ture The station numbers 0 to 2 are reserved Table 2 9 Station number Configurable Values Default Value 3 to 124 3 2 3 1 4 Telegram Length The telegram length is set to the PROFIBUS configuration Specigy the same value in the PROFIBUS programming software Table 2 10 Telegram length Configurable Values Default Value 8 Byte to 32 Byte 20 Byte 2 3 1 5 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
29. ten E 12 Byte Daten E74 16 Byte Daten E 20 Byte Daten E 24 Byte Daten E 28 Byte Daten E 32 Byte Daten E 8 Byte kons Daten E A 12 Byte kons Daten E A 16 Byte kons Daten E74 20 Byte kons Daten E74 24 Byte kons Daten E amp 28 Byte kons Daten E74 32 Byte kons Daten E A Gateway pa Te Feldger te die ber GSD Datei als DP Slave definiert werden Figure 2 8 Hardware catalog To integrate the operating device into PROFIBUS DP do the following 1 Click on the TesiMod BT item and keeping the mouse button pressed drag and drop this item to the icon for the PROFIBUS DP master system The pointer becomes a cross 2 Release the mouse button The following dialog opens Eigenschaften PROFIBU nittstelle TesiMod BT Allgemein Parameter Adresse 3 WI bertragungsgeschwindigkeit 1 5 Mbit s Subnetz nicht emetzt Neu Eigenschaften Loschen Abbrechen Hilfe Figure 2 9 Dialog Properties PROFIBUS interface TesiMod BT 3 Specify an address for the operating device 3 4 Click OK to confirm your actions G sutron i ELECTRONIC GMBH PROFIBUS DP The hardware configurator now looks as shown below EUS HW Konfig SIMA tio Station Bearbeiten Einf gen Zielsystem Ansicht Extras Fenster Hilfe BEL Exe Sia jm 20 vo THE EXE BUSES rordware Katalog E PROFIBUS 1 DP Mast
30. the peripheral outputs of the operating device hexadecimal RET_VAL Return value of the SFC15 in case of an error RECORD Copy source for the data to be transferred 2 6 1 8 Example for an OB1 The following example refers to the connection of one operating device to the PROFIBUS DP Call SFC 14 LADDR W 16 50 RET_VAL MW62 RECORD P DB80 DBX 4 0 BYTE 16 Call FC 80 RECORD_IN P DB80 DBX 4 0 BYTE 16 RECORD_OUT P DB81 DBX 32 0 BYTE 16 Call SFC 15 LADDR W 16 50 RECORD P DB81 DBX 32 0 BYTE 16 RET_VAL MW64 BE 2 18 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 6 1 9 Defining Variables Specifv the variable addresses in either the hexadecimal notation or using the follow ing svntax formats DB j Number DBX Number Number gt Figure 2 14 Bit access for PROFIBUS using a Siemens S7 DB Number DBB Number Figure 2 15 Byte access for PROFIBUS using a Siemens S7 DB Number DBW Number Figure 2 16 Word access for PROFIBUS using a Siemens S7 DB Number DBD Number Figure 2 17 Double word access for PROFIBUS using a Siemens S7 2 6 2 Siemens S5 Controllers The PLC program communicates with the PROFIBUS DP via the input output periph eral area A separate IN OUT data channel is assigned to each participant on the PROFIBUS
31. the response telegram and writes 0x00 to byte 3 The function block uses MW248 to MW254 as scratch flags For each operating device the program block also requires any data word of a data block The data word is transferred as a parameter during the call The telegram se quential number is saved in this data word The function block cyclically checks the content of byte 1 bits 5 to 7 If the value 0 is contained here the telegram number memory is reset If in byte 1 bits 5 to 7 are not equal to the content of the telegram number memory a new request telegram has been received from the operating device and this must be evaluated and a response sent The function block is called cyclically in OB1 with the corresponding parameters for each operating device 2 6 3 3 Protocol Parameters for BM DP12 Set the following parameters for the protocol Table 2 32 Protocol parameters for the Bosch CL series Parameter Value Maximum Waiting Time for Response ms 1000 Delay Until Connection Set Up ms 5000 Station Number 3 Telegram Length 16 Floating Point Number in the Siemens Format Inactive Byte Order is High Low Inactive Address Width 2 Set the parameters using the Bosch DP software The supplied device data base file SE03081A GSD is directly imported by the DP software Therefore the data required to set the parameters of the operating devices are available in the DP software You can specify
32. tialization of SPC3 4 No memory for telegram buffer 60 No configuration from master 61 Wrong input length 62 Wrong output length 63 Error in configuration data reparameterization re quired 64 Protocol chip requires configuration update repa rameterization required 65 No communication via protocol chip reparameter ization required 2 10 6 SUTRON ELECTRONIC GMBH PROFIBUS DP Table 2 20 Fehlermeldungen PROFIBUS DP Code Subcode Error Type Possible Cause 66 Protocol chip reset reparameterization required 67 Watchdog time error reparameterization required 70 Operating device is not polled 0 Distinguishing feature for manufacturer 1 Distinguishing feature for manufacturer 71 XXX No response to order xxx variable number 100 Base no for error from PLC function block PLC er ror is added to 100 The subcode indicates the offset value for the access during which the error oc curred i e 102 Access to DB via FB111 FB112 DB does not exist 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 6 Applications The controller program which is usually a function block must handle the requests of the operating device in line with the data profile The details depend on the controller The following sections explain the controller specific applications that have been developed to date The device data base GSD fi
33. ufruf Ger t 1 BA BT 345 5FC10 PO W EZ Basisn2 P1 W AZ_Basisn2 P2 DBNR2 P3 W WDNR2 P4 W TLNG2 Function Block BT_PB345 The function block BT_DP345 is used to decode the transfer protocol of the operat ing devices It ensures consistent data transfer When you program the controller note that a total of 64 bytes as of the address DB P2 W P3 are reserved for processing the protocol Other program components cannot use this area The function block BT_PB345 uses the following parameters Table 2 28 Parameters for function block BT_PB345 Parameter Function PO EZ Base Address P1 AZ Base Address P2 Data block for storing the EZ AZ data P3 Base Address in Data Block P2 P4 Telegram Length corresponds to the number of EZ AZ data of the slave con figuration 8 12 16 20 28 or 32 bytes 2 25 6 SUTRON ELECTRONIC GMBH PROFIBUS DP 2 6 3 2 Configuration in PROFI Table 2 29 Function blocks for the programming software PROFI Controller Function Block CL200 FBs Profibus BOSCH PROFI CL200 BT_MAIN PBO FBs Profibus BOSCH PROFI CL200 BT_READ PBO FBs Profibus BOSCH PROFI CL200 BT_WRITE PBO FBs Profibus BOSCH PROFI CL200 0B1 PBO CL300 FBs Profibus BOSCH PROFI CL350400 BT_MAIN PCO FBs Profibus BOSCH PROFI CL350400 BT_READ PCO FBs Profibus BOSCH PROFI CL350400 BT_WRITE PCO FBs Profibus BOSCH PROFI CL350400 0B1 PCO CL400 FBs Pr
Download Pdf Manuals
Related Search