Modifying the System During Operation
11-14
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Notice
Until the first FC is called the value of its coil is undefined. This is to be taken into
account in the connection of the FC outputs.
5. Configure the connections from or to the newly added CPs on both connection
partners and load these into the PLC.
Result
The fault-tolerant system processes the entire system hardware with the new user
program in redundant system mode.
11.2.8 Adding Interface Modules in PCS 7
The addition of the IM460 and IM461 interface modules, the external DP master
interface module CP443-5 Extended and the associated connecting cables is only
permitted in a deenergized state.
The power supply of the entire subsystem must be switched off. To ensure this has
no effect on the process, it must be executed when this subsystem is in STOP
mode.
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