Changing The Operating Mode Of An H Cpu; Changing From Redundant To Single Mode; Changing From Single To Redundant Mode, Module Rack Number 0; Changing From Single To Redundant Mode, Module Rack Number 1 - Siemens SIMATIC S7-400H Manual

Installation of a CPU 41x-H

Changing the Operating Mode of an H CPU

To change the operating mode of an H CPU, carry out one of following procedures
depending on the operating mode you wish to change to and the module rack
number of the CPU:

Changing from Redundant to Single Mode

1. Remove the interface module.
2. Perform a power on without backup e.g., by removing and inserting the CPU.
3. Load a project into the CPU in which it is configured for single mode.

Changing from Single to Redundant Mode, Module Rack Number 0

1. Connect the synchronization modules set for rack number 0.
2. Perform a power on without backup e.g., by removing and inserting the CPU.
3. Load a project into the CPU in which it is configured for redundant mode.

Changing from Single to Redundant Mode, Module Rack Number 1

1. Connect the synchronization modules set for rack number 1.
2. Perform a power on without backup e.g., by removing and inserting the CPU.
3. Load a project into the CPU in which it is configured for redundant mode.
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Automation System S7-400H Fault-tolerant Systems
A5E00068197-07