System modifications during redundant operation
10.3 Adding components
CPU 410-5H Process Automation
156 System Manual, 09/2014, A5E31622160-AB
Adding components
Starting situation
You have verified that the CPU parameters (e.g., monitoring times) match the planned new
program. Adapt the CPU parameters first, if necessary (see Chapter Editing CPU
parameters (Page 174)).
The fault-tolerant system is operating in redundant system state.
Carry out the steps listed below to add hardware components to a fault-tolerant system in
PCS 7. Details of each step are described in a section.
Step 1: Modify hardware (Page 157)
2 Modify the hardware configuration offline Step 2: Modify the hardware configuration offline
(Page 158)
Step 3: Stop the standby CPU (Page 159)
4 Download new hardware configuration to the standby
Step 4: Download new hardware configuration to
the standby CPU (Page 159)
5 Switch to CPU with modified configuration Step 5: Switch to CPU with modified configuration
6 Transition to redundant system state Step 6: Transition to redundant system state
7 Modify and download the user program Step 7: Modify and download the user program
This overall sequence for system modification does not apply in the following cases:
● For use of free channels on an existing module
● For adding of interface modules (see Chapter Addition of interface modules (Page 165))
Note
After changing the hardware configuration, you can have the download operation run
essentially automatically. You then no longer have to perform the steps des
cribed in
Step 3: Stop the standby CPU (Page 159) to Step 6: Transition to redundant
(Page 161). The system behavior remains unchanged as already described.
You will find more information in the HW Config online help, "Download to module
->
Download station configuratio
n in RUN operating state".
To Next Page
Loading...
Need help?
General
