Modifications To The System While In Operation - Siemens SIMATIC S7-400H Manual

Modifications to the System while in
Operation
In addition to the possibilities described in Chapter 9 for replacing failed
components while in operation, CPU 417-4H firmware version V2.0.0 or higher
also allows a system modification to be performed without interrupting the program
running.
This procedure is partly dependent on whether you are executing your user
program in PCS7 or in STEP 7.
In Section
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
The procedures described below for making modifications while in operation are
each structured so as to start from the Redundant system mode (see section 4.2)
and aim to return to this again.
Note
Keep strictly to the rules described in this chapter with regard to modifications of
the system during routine operation. If you contravene one or more rules, the
response of the fault-tolerant system can result in its availability being restricted or
even failure of the entire programmable logic controller.
Safety-relevant components are not taken into account in this description. For
more details on dealing with the fail-safe systems refer to the manual
S7-400F/S7-400FH Programmable Controllers, Fail-Safe Systems .
S7-400H Programmable Controller Fault-Tolerant Systems
A5E00068197-04
You Will Find
Possible Hardware Modifications
Adding Components in PCS7
Removing Components in PCS7
Adding Components in STEP 7
Removing Components in STEP 7
Changing the CPU Parameters
Changing the Memory Components of the CPU
Performing an Operating System Update
10
On Page
10-2
10-6
10-16
10-24
10-33
10-42
10-47
10-51
10-1