ARGH - a step backward.
I lost the eight inputs on the second Galil ICM. Had two working, one was the estop input. Now all eight are dead. I double checked by booting up Galil WSDK. the first eight on 1900 ICM one are fine, second eight on 1900 ICM are all dead. FWIW, have +24 for signal, DC common connected to INCOM.
I double checked manual, see attached pic, they are all opto isolated so 24 volt should be no problem.
See anything wrong? What component is most likely zorched?