Modbus Pro

Modbus Pro brings Modbus diagnostics into the modern era. Most engineers juggle a seperate master poller and slave simulator, often with dates interfaces. Modbus Pro puts both in one clean app

As as master it supports function codess FC01-06, FC15-16, FC22 and FC23 over Modbus RTU and TCP/IP, with configurable poll rates, live charting and full request/response logging. As a slave it simulates up to 10 devices with every data format (float32, int32, uint32 and more) plus automation like sine waves and random walks

Auto-discovery scans address ranges to find live registers, a built in library of 84 devices skips manual setup, and a scripting engine automates repetitive tests. Byte-order decoding shows every word order at once, so wrong values are obvious

One-time purchase from $199, no subscription. 7 day free trial, no credit card