S7-400H
System Manual, 03/2012, A5E00267695-11
259
Configuring with STEP 7
15
This section provides an overview of fundamental issues you must observe when you
configure a fault-tolerant system.
The second section covers the PG functions in STEP 7.
For detailed information, refer to
Configuring fault-tolerant systems in the basic help.
15.1
Configuring with STEP 7
The basic approach to configuring the S7-400H is no different from that used to configure the
S7-400.
●
Creating projects and stations
●
Configuring hardware and networking
●
Loading system data onto the target system
Even the individual steps that are required for this are identical for the most part to those
familiar from the S7-400.
NOTICE
OBs required
Always download these error OBs to the S7-400H CPU: OB 70, OB 72, OB 80, OB 82,
OB 83, OB 85, OB 86, OB 87, OB 88, OB 121 and OB 122. If you do not download these
OBs, the fault-tolerant system goes into STOP when an error occurs.
Creating a fault-tolerant station
The SIMATIC fault-tolerant station represents a separate station type in SIMATIC Manager.
It allows the configuration of two central units, each having a CPU and therefore a redundant
station configuration.