Modbus Serial Client Controller

WASM Event-Driven Controller over Web Serial API

Requirements: Requires a Chromium-based browser (Chrome, Edge, Opera) over HTTPS or localhost. Click Request Serial Port to grant permissions.
Serial Configuration
Disconnected
Read Coils FC 01
Read Discrete Inputs FC 02
Write Single Coil FC 05
Write Multiple Coils FC 15
Read Holding Registers FC 03
Read Input Registers FC 04
Write Single Register FC 06
Write Multiple Registers FC 16
Read/Write Multiple Registers FC 23
Mask Write Register FC 22
Read File Record FC 14
Write File Record FC 15 (FC15/06)
Read FIFO Queue FC 18
Read Exception Status FC 07
Diagnostics Query FC 08
Read Device Identification FC 43/14
Full Automated Feature Suite Check

Clicking below will execute a sequential batch check of all Modbus functions supported by this library using Web Serial.

Client Execution Log