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Modbus Data Read using IEC Developer

Started by karmalai, 23 Oct 2019

1 post in this topic

Posted 23 Oct 2019 (edited)

Dear All

i would like to clarify few doubts regarding Modbus data read using IEC Developer.

The following hardware and software we are using in our project.

PLC - Q25PRH

Remote IO head - QJ72LP25-25

Modbus Module - QJ71MB91 (Connected in RIO)

Slave Devices - Power meter

my question is how to assign the parameter like Modbus function code, Modbus slave address,Modbus holding register using IEC Developer software .

and if possible please post the sample program.

Thanks.

Edited 23 Oct 2019 by karmalai

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