Siemens S5-135U/155U - Manual (Page 174)

5-34
System Manual
C79000-G8576-C199-06
Proceed as follows to remove the CPU:
Step Action
1 Release the upper locking bar of the central controller.
2 Release the locking pin of the module.
3 Press the release lever downwards and pull the module forwards
and out of the central controller.
Note
Only operate the CPU 928B with the submodule receptacle closed. You
close it either by fitting an interface submodule or with the cover supplied.
Removal
CPUs, Memory Cards, Memory Submodules, Interface Submodules