Siemens Simatic 620 - Manual (Page 83)

SIMATIC Box PC 620 Expansions
4-23
SIMATIC Box PC 620 Manual
A5E00131465-01
4.7 Removal and Installation of the Bus Board
1. Open the housing as described in Section 4.1.
2. Remove all the modules from the slots (proceed as described in Section 4.4.2).
3. Remove the drive holder as described in Section 4.5.1.
4. Remove the power supply unit as described in Section 4.6.
5. Undo the screw on the motherboard.
6. Pull the bus board off the motherboard.
7. Proceed in the reverse order to refit the bus board.
Bus board Fixing screw of the bus board
Figure 4-18 Removal and Installation of the Bus Board