WebModbus
MODBUS RTU WORKSPACE

Modbus RTU workspace

Read, write, and poll Modbus RTU devices through a serial port.

Use Chrome or Edge on localhost or HTTPS to access Web Serial.

WebModbus

Disconnected
Port

Communication log

Time Direction Frame (hex)

Request settings

Polling intervals are independent; writes require confirmation.

Advanced functions

Broadcast and address/slave scans are disabled. Function 08 is limited to echo diagnostics.

Confirm write