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HOME > SERVICE > Problem

Use of MODBUS POLL software

2022-06-11 15:39:06| Source:網(wǎng)絡(luò)| views:| 0

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

  

modbus poll


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

1. Open the software to establish a connection

  

modbus poll 串口配置


  

串口通訊


  

設(shè)備通信地址


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

  

寄存器讀取


 ?、?、

  

寄存器讀取地址


 ?、?、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

  

寄存器


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

  

寄存器


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

  

寄存器,建立通訊


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

  

寄存器說明


  

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