User Manual User Manual Profibus Master Profibus Master Module
Contents
1. Ww Lo ae toggles every 250 ms normal Lo ae Error present flag 0 N 0 error 1 Error Figure 3 Content of ERROR word Bit 0 in the ERROR register is set if the PBM isin error mode Red LED flashing a number of times equivalent with the error code T he error code is stored in the L east significant byte bits2 7 see figure 3 Bit 1 in the ERROR register is toggling every 250 ms during normal operation data is transferred T his bit is working as a watchdog for the PLC program T he min max and previous time is the time of one communication cycle M in and max refresh time is the longest and shortest times measured Previous refresh time is the time that the last communication cycle used T he times are all measured in ms N ote that the cycle time here refers to the transfer of data between the PLC and the PBM and does not to the bus cycle time HM S FIELDBUS SYSTEM S AB 9 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 4 2 The LED indicators Zy cz Status Com me Fail PIRIC B U S Proripus DP MASTER z e Profibus configurator Z connector U Error Ready Run Terminating Switch Profibus DP connector Figure 4 TheLED indicators HM S FIELDBUS SYSTEM S AB 10 16 PROFABUS Master Module Communication module for H252PDPM TheLED s Light Emitting Diodes indicates the following HM S FIELDBUS SYSTEM S AB Flashing T he module i2. ThePBM modules uses theLINK AREAS inthe PLC memory The first PBM module the one installed closest to the CPU uses LIN K AREA 1 If a second PBM module is installed it will use LINK AREA 2 The size of the input output areas is specified by the LINK END address of each LINK AREA TheLINK START address must always be set to zero See section 5 for a detailed example of the configuration and setup HM S FIELDBUS SYSTEM S AB 7 16 PRO ABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 3 3 Profibus Bus cable T he pin layout of the Profibus connector follows the Profibus D P standard according to the specifications below Shield B Line RTS TTL GND Bus 5V Bus A Line 1 2 3 4 5 6 7 8 9 4 Indications and PBM front panel All Profibus status information is available on the PBM front panel according to figure 4 4 1 Information available for the PLC T here is also some information for the PLC this information is stored in the WR area according to the table below ERROR WRFOF9 WRF159 MAX REFRESH WRF13D WRF19D TIME MIN REFRESH WRF13E W RF19E TIME PREVIOUS REFR W RF 13F W RF 19F TIME HM S FIELDBUS SYSTEMS AB 8 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 Error on remote ee FEh Lowest no of error node F i Device ee an internal error Error code same as indicated En En Red LED
3. twisted pair cable or fibre optic 9 6 kbit s up to 12 M bit s max distance 200m at 1 5 M bit s extendible with repeaters M edium Acces hybrid medium access protocol according to DIN 19245 Part 1 M ono M aster or M ulti M aster systems supported M aster and Slave D evices max 126 stations possible Communications Peer to Peer user data transfer or M ulticast synchronisation Cyclic M aster Slave transfer and acyclic M aster M aster data transfer Operation M odes O perate cyclic transfer of input and output data C lear inputs are read and outputs are cleared Stop only M aster M aster functions are possible Synchronization enables synchronization of the inputs and or outputs of all D P Slaves Sync M ode O utputs are synchronized Freeze M ode Inputs are synchronized Functionality C ydic user data transfer betwen D P M aster s and D P Slave s Activation or deactivation of individual D P Slaves Checking of the configuration of the D P Slaves Powerful diagnosis mechanisms 3 hierarchical levels of the diagnosis messages Synchronization of inputs and or outputs Address assignments for the D Slaves over the bus Configuration of the D P M aster D PM 1 over the bus max 246 bytes input and output data per D P Slave typical 32 bytes Security and protection mechanisms A I messages are transmitted with H amming Distance H D 4 W atch D og T imer at the D P Slaves Access prote
4. EA 1 and the second will operateon LINK AREA 2 5 3 Configuring the Profibus DP Master Use the Profibus D P configurator port to configure the P rofibus D P network W rite down on which addresses the different modules input and output words are mapped Also make sure that the network node addresses match with the ones designated to the modules HM S FIELDBUS SYSTEM S AB 14 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 N ote T he addresses given in the C onfigurator software are given in byte units and the addresses in the PLC is given in word units E xample of Configuration HMS PB 64 1 0 02 OP Panel 5 4 Transfer the Profibus DP MAP to the PLC programming project W hen the Profibus system is configured the M AP has to be transferred to the PLC program Observe that the PLC automatically dedicates the same size to both input and output areas T herefor the largest of the two has to be used when determining the LINK LENGTH Since only onePBM module is needed it will work with data in LINK AREA 1 T he system above gives the following PLC set up WL1START address 00 always zero WL1END address 05H the largest address is the input with 6 words 12 bytes HM S FIELDBUS SYSTEM S AB 15 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 WL0000 564 OUT1 First output word of the PB 64 0 module WL0001 HMS64 OUT2 Second o
5. User Manual Profibus Master Module Doc No H252 PDPM 1 31 Proripus DP MASTER 9 HMS FIELDBUS SY STEMS AB PILEFELTSGATAN 93 95 SE 302 50 HALMSTAD SWEDEN PHONE 46 35 17 29 00 www anybus com info hms se FAX 46 35 17 29 09 AnyBus Communication Systems PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 T able of Contents 1 1 Specifications 3 1 2 Technical Features for Profibus DP 4 2 The Proripus Master Module 5 21 Configuration 5 2 2 Features 5 2 3 Function Description 5 24 Electronics Electrical Characteristics 6 3 Installation and Configuration 6 3 1 Hardware setup 6 3 2 Software Setup 7 3 3 Profibus Bus cable 8 4 Indications and PBM front panel 8 4 1 Information available for the PLC 8 4 2 The LED indicators 10 43 Termination 12 4 4 Error Codes 13 5 Programming the PBM 14 5 1 Make a map over the Profibus DP Network 14 5 2 Installing the PBM module 14 5 3 Configuring the Profibus DP Master 14 5 4 Transfer the Profibus DP MAP to the PLC programming project 15 5 5 Write the PLC program 16 HM S FIELDBUS SYSTEM S AB 2 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 1 Introduction of PROFIBUS DP Profibus has a user international organisation called Profibus International P1 and local national organisations PN T he organisation assists members on a lot of matters concerning P
6. ction for the inputs outputs at the D P Slaves D ata transfer monitoring with configurable timer interval at th DP M aster DPM 1 D evice T ypes DP M aster Class 2 DPM 2 eg programming configuration device DP M aster C lass 1 DPM 1 eg central controller likePLC CNC RC DP Slave eg Input O utput device with binary or analogue inputs outputs drives Cabling and Installation Connecting or disconnecting of stations without affection of other stations HM S FIELDBUS SYSTEM S AB 4 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 2 The PROFIBUS Master Module T his section contains a general technical and functional description of the Profibus master unit PBM 2 1 Configuration T he Profibus master module can be configured using the external Profibus D P Configurator please refer to separate documents regarding the external C onfiguration Software 2 2 Features All Baud rates from 9 6 kbit s up to 12 M bit s Up to 124 stations M ax 512 bytes in of process data M ax 512 bytes out of process data 2 3 Function Description T he Profibus M aster module PBM is designed to operate as a master unit in a Profibus network ThePBM works together with the H 252 unit from H itachi in a BSH base Two PBM units can be installed in the same base and each PBM can handle 512 bytes of input and 512 bytes of output ThePBM is easy to use and configure T
7. e FAIL LED is flashing T he error code is determined by the number of flashes done by the LED The Error C odes correspond to the following messages 1 Failed to initialise Profibus D P M aster Start A ddress of the LINK AREA inthePLC isnot zero H ex 2 LINK LENGTH of the PLC equals zero is larger than 5 ee Communication with PLC failed Slot is not configured as LINK in the PLC Internal Error on Profibus DP M aster HM S FIELDBUS SYSTEM S AB 13 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 5 Programming the PBM T he following section contains a simple step by step guide about how to use the PBM in a project 5 1 Make 8 map over the Profibus DP Network T he first step is to document M ap the Profibus D P system in the application D oing so the number of input and output words will be given If either the input area or the output area exceeds 255 words two separate Profibus networks have to be used H itachi PLC HMS PB 64 1 0 OP Panel Servo Slave Unit 1 Slave Unit 2 Slave Unit 3 2 output 4 input 3 output words 2 words words 5 2 Installing the PBM module ThePBM module fits in aBSH base with a H 252 H itachi CPU T he only hardware set up done on the PBM circuit is the old Clear configuration described above If two PBM modules are installed in the same base the PBM module closest to the C PU will operate on LINK AR
8. h a D IP switch on the PBM circuit board The DIP switch is located on the circuit board and consists of four switches of which only the first and last are used in this version T he hardware setup controls the following functions Switch 1 H old C lear Switch 2 N ot used Switch 3 N ot used Switch 4 Byte Swap Switch 2 3 are not used in this version of the PBM module HM S FIELDBUS SYSTEM S AB 6 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 HOLD CLEAR T his function gives the user the opportunity to select whether or not the output data from the master should be set to zero when the CPU key is changed to STOP mode W hen switch lisin ON position output data from the PBM will be forced to zero W hen switch 1 isin OFF position the PBM freezes current output data BYTE SWAP This function gives the user the opportunity to select whether the H 252 shall swap the High and Low Bytes of a Word or not When switch 4isin ON position the most significant and least significant byte of a word are swapped When switch 4 isin OFF position no swap is made 3 2 Software Setup T he only configuration done from the PLC setup is to specify the number of words desired in the input output areas T he largest of these areas should then be used to specify the length of the input output areas since the PLC automatically always sets the input area and the output area to the same size
9. he configuration is done using the external Profibus Configurator T he only configuration done on the PBM isthe old C lear selection and the Byte Swap selection see section 3 for further details For the programmer the PBM module will act like a normal link module i e the Profibus I O data is stored in the link area If an error is detected the ERROR flag is HM S FIELDBUS SYSTEM S AB 5 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 set to one and the corresponding error code is indicated in the E RRO R words most significant byte ThePBM module supports the Profibus diagnostic software T his tool is a standard Profibus program for diagnostics The PC with the diagnostics software is connected to the master modules C onfigurator port see section 4 for the Configuration ports location on the front panel Please note that the PBM initialisation sequence takes a few seconds after power up T he best operating conditions are therefor achieved when the PLC is turned off until the STATUS LED indicates that the initialisation is completed l e the STATUS LED is stable instead of flashing 2 4 Electronics Electrical Characteristics I VCC 5V Input Current 600 fmA 3 Installation and Configuration T he following section contains a description over the installation and configuration steps which the user has to observe 3 1 Hardware setup T he hardware setup is done wit
10. rofibus F or further information contact on E mail 101644 2006 compuserve com G eneral Profibus information is available on Internet W W W PROFIBUS COM Profibus D P is used normally in industrial automation to transfer fast data for motor controllers M M 1 I O units and alot of other industrial equipment 1 1 Specifications T he media for the fieldbus is a shielded copper cable composed of a twisted pair T he baud rate for the bus is between 9 6kbaud to max 12M baud T he Profibus D P network can consist of 32 different modules 126 with a repeater and the total amount of data for Profibus D P are 246 Byte out module and 246 Byte in module Several different Profibus D P M asters are available on the market both for PLC systems and PC computers Personal C omputer with C onfiguration Software PROFIBUS DP M aster ee ee ee a Profibus D P Slave node 1 Profibus D P Slave node n Profibus D P Slave node 2 Picture 1 PROFIBUS DP Overview HM S FIELDBUS SYSTEM S AB 3 16 PROABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 1 2 Technical Features for Profibus DP Bus cycle time ms 5 10 15 MBit s 12 MBit 20 30 DP Slaves Picture 2 Bus cycle time of a Profibus DP M ono M aster system Summary T echnical F eatures PROFIBUS DP Transmission T echnique PROFIBUS DIN 19245 Part 1 RS 485
11. s initialising Lit Profibus M aster M odule is ready PLC is running and the module is transferring data Flashing T he number of flashes separated by a longer delay is equivalent to the error code Bus E rror Lit T he master part of the module is Ready to communicate F lashing N ew configuration is being downloaded Lit T he device is transferring data to the Profibus N etwork Flashing Initialising the Profibus network Revision 1 31 1999 12 04 11 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 4 3 Termination The end nodes in a Profibus DP network has to be terminated to avoid reflections on the bus line The Profibus DP master module is equipped with a termination switch to accomplish this in an easy way If the module is used as the first or last module in a network the termination switch has to bein ON position Otherwise the switch has to be in OFF position PLEASE NOTE If an external termination connector is used the switch must bein OFF position Termination Bus termination enabled switch ON If the module is the last or first module the bus termination has to be set on or an external termination connector has to be used Termination Bus termination disabled switch OFF HM S FIELDBUS SYSTEM S AB 12 16 PROFABUS Master Module Communication module for H252PDPM Revision 1 31 1999 12 04 4 4 Error Codes E rror is indicated when th
12. utput word of the PB 64 0 module WL0002 SERVO_1 First output word of the Servo module WL0003 SERVO_2 Second output word of the Servo module WL0004 SERVO 3 Third output word of the Servo module W L 0005 D oes not exist as output to the Profibus network WL0006 H M 564 IN1 First input word of the PB 64 1 O module WL0007 HMS64_IN2 Second input word of the PB 64 1 O module W L 0009 Second input word of the O p Panel W L 000A T hird input word of the O p Panel W L 000B oE Fourth input word of the O p Panel W L 0008 First input word of the O p Panel 5 5 Write the PLC program T he last step is to write the actual PLC program If all the steps above are accomplished the program will be much easier to write and maintain for the future HM S FIELDBUS SYSTEM S AB 16 16
Download Pdf Manuals
Related Search