[?]: DAMAGED SIMATIC CPU 314 by 230VAC

[Dkubalov]

Hello all,
I have to solve how to repair a damaged CPU314PN/DP by 230VAC, which came to 24VDC power supply line.
Does anybody know, which components could be damaged on PCB?
Unfortunately on PCB I see no sign of a damage.
Pictures are here for download
https://dl.dropboxusercontent.com/u/27536342/Photos.zip

Many thanks for any advice

[CoMod]

1st -test fuse "OMF"

[boont]

First check fuses, and protection diodes in the supply chain.