Modbus communication - HMS110 - HMW112 - TMI110 - HMS112 - HMD110 - HMW110 - HMD112

HMDW110 with TMI110 User Guide

Document code
M211726EN
Revision
E
Language
English (United States)
Product
HMS110
HMW112
TMI110
HMS112
HMD110
HMW110
HMD112
Document type
User guide

Transmitters ordered with the Modbus configuration option are accessed using the Modbus serial communication protocol. The supported Modbus variant is Modbus RTU (Serial Modbus) over RS-485 interface.

The supported Modbus functions and registers are described in Modbus reference.

The following table lists the default Modbus serial communication settings of devices ordered with the Modbus configuration option.

Table 1. Default Modbus serial communication settings
Description Default Value
Serial bit rate 19200
Parity N
Number of data bits 8
Number of stop bits 2
Modbus device address 240
Serial delay 0
Communication mode Modbus RTU

Use Vaisala Insight software to change the Modbus serial communication settings if needed. Download Insight software at www.vaisala.com/insight.