Pcs 7, Step I: Offline Modification Of The Hardware Configuration - Siemens SIMATIC S7-400H System Manual

System modifications in operation
14.4 Removing components in PCS 7
Exceptions
This general procedure for system modifications does not apply to removing interface modules
(see section Removing interface modules in PCS 7 (Page 218)).
Note
After changing the hardware configuration, it is downloaded practically automatically. This
means that you no longer need to perform the steps described in sections PCS 7, step III:
Stopping the standby CPU (Page 214) to PCS 7, step VI: Transition to redundant state
(Page 216). The system behavior remains unchanged as already described.
You will find more information in the HW Config online help, "Download to module ->
Download station configuration in RUN mode".
14.4.1

PCS 7, step I: Offline modification of the hardware configuration

Starting situation
The fault-tolerant system is operating in redundant mode.
Procedure
1. Perform offline only the configuration modifications relating to the hardware being removed.
2. Compile the new hardware configuration, but do not load it into the PLC just yet.
Result
The modified hardware configuration is in the PG/ES. The PLC continues operation with the
old configuration in redundant mode.
212
As you do, delete the icons to the channels that are no longer used.
System Manual, 09/2007, A5E00267695-03
S7-400H