Communicating with Mitsubishi PLCs via Serial Port in C# for M-Register Access
Implementing M-Register Read/Write for Mitsubishi PLCs Using C# Serial Communication
This guide outlines a method for accessing the M-register (auxiliary relay area) of a Mitsubishi PLC from a C# application using the MELSEC Communication (MC) protocol over a serial connection.
Hardware Setup and Protocol Configuration
Required Hardware
RS-485 ...
Posted on Sun, 02 Aug 2026 16:43:54 +0000 by garrisonian14