Siemens S5-135U/155U - Manual (Page 145)

5-5
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 948 -3UA13 or the CPU 948 -3UA23 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