Modbus registers - OPT100

OPT100 User Guide

Document code
M211858EN
Revision
N
Language
English (United States)
Product
OPT100
Document type
User guide

Registers are numbered in decimal, starting from 1. Register addresses in actual Modbus messages (Modbus Protocol Data Unit (PDU)) are in hexadecimal and start from zero. Register number 1 corresponds to address 0hex in the actual Modbus message.

CAUTION

Reading the wrong register(s) may result in correct-looking values. Check the reference documentation of your Modbus host (PLC) to verify which notation it uses for Modbus register addresses.