Siemens SIMATIC S7-400H - PCS 7, Step 1: Editing the Hardware Configuration Offline

System modifications during operation
17.4 Removing components in PCS 7
S7-400H
296 System Manual, 03/2012, A5E00267695-11
17.4.1 PCS 7, step 1: Editing the hardware configuration offline
Starting situation
The fault-tolerant system is operating in redundant system mode.
Procedure
1. Perform offline only the configuration modifications relating to the hardware being
removed. As you do, delete the icons to the channels that are no longer used.
2. Compile the new hardware configuration, but do not load it into the target system just yet.
Result
The modified hardware configuration is in the PG/ES. The target system continues operation
with the old configuration in redundant system mode.