Manual VIPA CPU 21x Chapter 5 Deployment CPU 21x-2BT02 with H1 / TCP/IP
HB103E - Rev. 05/45 5-31
The PLC programming in this example does not depend on the protocol
and can therefore be used for H1 and TCP/IP.
This PLC program is used in both CPUs.
Synchronization of the interfaces
In the start-up OB OB100 of the CPU the interface used on the CP has to
be synchronized by means of the handler block SYNCHRON.
OB100 verifies that the synchronization procedure was completed without
errors. If an error is detected, the error number is entered into MB200.
Operation block OB100:
PLC programs
for the CPUs
OB100
Interface
Synchronization
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