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SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
1.3.12
Removing and Installing the CPU Board
Remove module supports (only RI45/RI45PCS)
Remove all expansion modules and slot plates.
Disconnect all cables from the CPU board and the bus board and write
down their previous connections.
Release the 2 screws at the back of the system unit (see arrows in
Figure 1-13), then push forward the CPU board and its baseplate until it
comes to a stop and lift it out. You can now remove the bus board if
necessary.
Mounting screws
Figure 1-13
Removing the CPU board
To install the board, follow the instructions in reverse order.
The bus board and supporting plate are not included with the CPU board
when supplied as a spare part.
System Unit