Adding Components In Pcs 7 - Siemens SIMATIC S7-400H Manual

Modifying the System During Operation
11.2

Adding Components in PCS 7

Initial situation
You have ensured that the CPU parameters (e.g. the monitoring times) suit the
planned new program. If necessary you must first change the CPU parameters
accordingly (see Section 11.6).
The fault-tolerant system is working in redundant system mode.
Procedure
Carry out the steps listed below to add hardware components to a fault-tolerant
system in PCS 7. Details of each step are listed in a subsection.
Step
1
2
3
4
5
6
7
Exceptions
This procedure for system modification does not apply in the following cases:
• Use of Free Channels on an Existing Module
• When adding interface modules (see Section 11.2.8)
11-6
What Has To Be Done?
Modification of Hardware
Offline Modification of the Hardware Configuration
Stopping the Standby CPU
Loading New Hardware Configuration in the Standby CPU
Switch to CPU with modified configuration
Transition to Redundant System Mode
Changing and Loading User Program
Automation System S7-400H Fault-tolerant Systems
Refer to Section
11.2.1
11.2.2
11.2.3
11.2.4
11.2.5
11.2.6
11.2.7
A5E00068197-07