Modifying the System During Operation
11-6
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
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 What Has To Be Done? Refer to Section
1 Modification of Hardware 11.2.1
2 Offline Modification of the Hardware Configuration 11.2.2
3 Stopping the Standby CPU 11.2.3
4 Loading New Hardware Configuration in the Standby CPU 11.2.4
5 Switch to CPU with modified configuration 11.2.5
6 Transition to Redundant System Mode 11.2.6
7 Changing and Loading User Program 11.2.7
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)
To Next Page
Loading...
