Use of MODBUS POLL software

Our DAM series of devices support modbus protocol and can support modbus standard software modbus poll connection communication.

Serial port devices default to modbusRTU protocol, and network port WIFI devices support modbusTCP. 

1. Open the software to establish a connection

2. Select the corresponding register reading area after the communication is established.

　　①、

　?、?、01是DO代表繼電器輸出線圈，02是DI輸入線圈，03是AO模擬量輸出保持寄存器，04是AI模擬采集輸入只讀寄存器

3. Configure the starting position and the number of channels according to the equipment specification

　After configuring the parameters, you can click ok to establish a communication.　

　3. The sending and receiving of messages can be detected after the communication is established.