Manual

VEGACOM 557 Profibus FMS 19
Setup
6 Integrate S5 program (on diskette), which reads in measured values, into your own
application
- Enquire in OB21 and OB22 the functional component FB249 (SYNCHRONOUS)
- Transfer data component DB240 to your own application
- Initialise measured value data components (standard: DB220-235)
- Transfer functional component FB210 or FB211 and/or FB212 into your own application
Note:
The applied functional components must be called up in every program cycle
7 Transfer components to AG
4.2 PROFIBUS characteristics of VEGACOM 557
VEGACOM 557 PROFIBUS supports PROFIBUS-FMS. FMS describes the communication
objects, the application services and the resulting models from the user's point of view. The
function of VEGACOM 557 is that of the slave. E.g. a communication processor CP5431 can
be used as PROFIBUS master.
Object directory (OV)
All communication objects are entered in the local object directory (OV). The OV contains the
description of the structure, the data types and the internal address assignment. The master
(here CP5431) has access to the entered objects. The static OV is as follows:
Object Type Length Number of Password Access Access Rights Symbol
index elements Group
(Hex)
1000 Octett-String 6 16 0 0 READ_ALL MESSWERT-01
1001 Octett-String 6 16 0 0 READ_ALL MESSWERT-11
1002 Octett-String 6 16 0 0 READ_ALL MESSWERT-21
1003 Octett-String 6 16 0 0 READ_ALL MESSWERT-31
1004 Octett-String 6 16 0 0 READ_ALL MESSWERT-41
1005 Octett-String 6 16 0 0 READ_ALL MESSWERT-51
1006 Octett-String 6 16 0 0 READ_ALL MESSWERT-61
1007 Octett-String 6 16 0 0 READ_ALL MESSWERT-71
1008 Octett-String 6 16 0 0 READ_ALL MESSWERT-81
1009 Octett-String 6 16 0 0 READ_ALL MESSWERT-91
100A Octett-String 6 16 0 0 READ_ALL MESSWERT-A1
100B Octett-String 6 16 0 0 READ_ALL MESSWERT-B1
100C Octett-String 6 16 0 0 READ_ALL MESSWERT-C1
100D Octett-String 6 16 0 0 READ_ALL MESSWERT-D1
100E Octett-String 6 16 0 0 READ_ALL MESSWERT-E1
100F Octett-String 6 16 0 0 READ_ALL MESSWERT-F1
In the OV you can see that 16 groups with 16 elements each are available. They represent the
256 measured values. Each measured value consists of 6 octets (including index and status
information). For access to the first 16 measured values, the master has to send a READ serv-
ice with index = 1000 hex to the slave.
The indices are required in the S5 program for placing the order to the CP.