I would like to monitor a voltage ranging between 0~5Vdc from a separate circuit and I'd like to make use of the analog I/O capability of the PLC I have which is the TRI T100MD+.How do I connect the voltage output from the separate circuit to my PLC?Do I just tap directly the +Vdc of the circuit to one of the A/D inputs of the PLC and the ground of the circuit directly to the ground of the A/D ground on the PLC? Your inputs are highly appreciated.Thanks!