PLC Troubleshooting Software

Wiresight is PLC troubleshooting software for maintenance engineers working with programmable logic controllers. It brings structure to input, output, interlock and communication faults — so the team works from signals and permissives outward to field devices, instead of guessing at causes.

What structured PLC troubleshooting covers

• PLC inputs — is the field signal actually present at the input? Sensor, wiring or card?
• PLC outputs — is the output commanded in logic and present physically? Wiring, fuse or load?
• Sensors & field devices — proximity, photoelectric and analog sensors feeding the PLC.
• Interlocks & permissives — safety and process conditions blocking the action.
• Safety circuits — E-stops, safety relays and dual-channel checks.
• HMI alarms — reading and interpreting alarms rather than ignoring them.
• Communication faults — network drops between PLC, HMI and drives.
• VFD / PLC interaction — enable, run and fault signals between drive and controller.

Recurring automation faults

Many automation faults repeat — a particular interlock that drifts out of adjustment, a sensor that fails in heat, a network node that drops under vibration. Wiresight logs each resolution, so recurring automation faults become a searchable history with known causes, not a recurring mystery. Pair this with electrical fault finding software for the field-device layer and the AI maintenance assistant for generated diagnostic sequences.

Manufacturer-neutral

Wiresight is structured around signal and logic checks that apply across PLC platforms, rather than being tied to a specific manufacturer. It does not claim support for specific PLC brands beyond the generic equipment type your team configures.