Technical data

7.3.1.2 Program for PLC 2 (S5-115 U)
The CP interface of PLC 2 must also be synchronized during start-up using
the SYNCHRON handling block. The SYNCHRON calls must therefore be
programmed for the PLC used in blocks OB 21 (for manual warm restart)
and OB 22 (warm restart following power down).
The synchronization is triggered and checked in FB 111 STARTUP (not a
standard FB). If an error occurs, a flag bit is set which can be evaluated by
the user program.
The transmit trigger in PLC 2 uses a SEND HDB. This is called in FB 10.
Before each SEND call, the data bytes must be incremented. This occurs in
FB 20. Function blocks FB 1 and FB 2 are called in OB 1.
The data transmitted by PLC 1 are received in PLC 2 using the RECEIVE
handling block. This HDB is called in FB 101.
7.3.2 Transferring the Configuration Data for the CP 5430 TF/CP
5431 FMS and the STEP 5 User Program
To be able to implement the practical example for S5-S5 communication,
follow the procedure outlined below (and refer to Chapter 16):
➣
Transfer the following COM 5430 TF/COM 5431 FMS database files to
the CPs you are using:
When using the CP 5430 TF under the network file AGAGONCM.NET
– for station 1 OAGAG.155
– for station 2 OAGAG.115.
S5-S5 Communication B8976060/02
Volume 1 7 - 20