Modbus Function Codes - Airzone Modbus Bedienungsanleitung

Modbus function
codes
The basic Modbus commands allow you to control a device to modify the value of any of its
registers (memory space), or request the content of said registers, according to the different
function codes:
EN
12
Code
03 Read output or internal registers
04
06 Write to single register
16 Write to multiple registers
22 Write to register by mask
Eco-Adapt
Read input registers