Omron DRM21 Program and Node

[ching99 0]

Hi,

I have network with Omron PLC + DRM21 + 4 Node Node Card (Remote I/O).

My Node Card frequently circuit burned after I replaced the DRM21 with same program.

Will DRM21 cause the burn of Node Card?

[Crossbow 295]

Burned how?  There is nothing about a properly wired and installed DRM21 that can possibly cause any damage to the slave devices.  If you have an electrical problem, take a look at the 24VDC power being provided to the cards.