Patrick, Ed, Richard I moved the link in the h1ecatc1 system manager for 'I/O Devices -> Vertex Auxiliary -> Auxiliary LVEA Hub 1 -> Illuminators Input -> Channel 1 -> Output' from 'PLC1 -> Standard -> Outputs -> PslNoiseEaterOut -> IlluminatorRelayOn' to 'PLC1 -> Standard -> Outputs -> HAM1IlluminatorOut -> IlluminatorRelayOn'. I committed the change to svn and restarted. I ended up having to restart the computer, as the LIGO TwinCAT Target Configuration GUI was taking a really long time on 'Activate and run'. I tested turning on and off the HAM1 illuminator through MEDM, and light appeared and disappeared on some of the camera images.