Modbus

Posts related to Modbus across categories.

2 posts · Page 1 of 1

RP2350 touch LCD controlling inverter speed over RS485 Modbus RTU, showing the command value and actual speed together

RP2350 RS485 Modbus RTU Inverter Motor Control

RUN/STOP and speed control of an inverter over RS485 Modbus RTU, with the RP2350 touch LCD graphing only the speed the inverter actually reported - not the commanded value.

Sep 1, 2026

ZView Modbus IO monitor with four OUT and IN lights and D-register bit matrices

Guides

Raspberry Pi PLC Modbus IO Monitor - a ZView HMI in One HTML Page

A single-page ZView, 10 KB of HTML, showing an upstream Modbus master driving four outputs and reading four inputs back. The bit matrix on screen catches byte swaps and wrong bit positions instantly.

Jun 23, 2026