Maintenance
9.6 Module installation / removal
S7-300, CPU 31xC and CPU 31x: Installation
9-10 Operating Instructions, Edition 08/2004, A5E00105492-05
Putting a new module into service
Proceed as follows to put the new module into service:
1. Open the front panel.
2. Reinstall the front connector.
3. Close the front panel.
4. Switch the load voltage back on.
5. Reset the CPU to RUN mode.
CPU
PS
1
2
The figure illustrates the described steps:
(1) Move the front connector into operating position
(2) Close front panel.
Reaction of the S7-300 after module replacement
After a module replacement, the CPU switches to run mode, provided no error has occurred.
If the CPU stays in STOP, you can view the cause of error in STEP 7 (see the
STEP 7
User
manual).
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