Free PLC Tools
Tools for Controls Engineers
Fast, browser-based utilities for commissioning and troubleshooting — no sign-up, and nothing ever leaves your machine. Built by automation engineers, free to use.
Commissioning
Analog Scaling Calculator
Convert raw card counts (4–20 mA, 0–10 V, ±10 V) to engineering units and back, then copy ready-to-paste scaling code for Rockwell, Siemens and CODESYS.
Open toolCommunicationModbus Register Calculator
Decode and encode registers across ABCD/CDAB/BADC/DCBA byte orders, and translate the 40001 data-model address to the 0-based protocol address with the right function codes.
Open toolMore tools coming soon
A ladder logic simulator, timer/counter helpers, and IP subnet tools are on the way.