Does the module's output correspond correctly to its input? Determine that by forcing the PLC output to 10%, 25%, 50%, 75%, and 90% and measuring on the output terminals at the corresponding range.

Higher amperage relay output modules and an 8-point input simulator module are now available from AutomationDirect for the Click series stackable micro brick PLCs.

The Si838x PLC field input isolator family is said to offer a combination of high speed channels, up to eight channels per device, bipolar input flexibility, high noise immunity and 2.5kV RMS safety ...