Siemens SIMATIC IPC647D Operating Instructions Manual page 100

Device maintenance and repair
7.3 Removing and installing hardware
Procedure
Observe the EGB guidelines.
Removal
1. Disconnect all cables from the motherboard, noting down their positions while doing so.
2. Remove the 9 screws from the positions indicated in the following figure.
3. Use a hex key to remove the hex bolts marked in the following figure.. The following
figure shows the PROFIBUS device with MPI/DP interface. Only the two middle screws of
the COM1 port have to be loosened at the other device variants.
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Operating Instructions, 01/2014, A5E32996306-AA
SIMATIC IPC647D