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M340 read MODBUS device value

Modicon PAC Forum

A forum for topics related to the scope of Modicon PAC offers and ecosystem along the whole lifecycle: Modicon M580 and 340, EcoStruxure Control Expert, EcoStruxure Process Expert (Unity Pro) and more.

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Vince95
Crewman
Crewman
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1
2156

M340 read MODBUS device value

Hi all,

 

I'm new to Schneider PLC. I had try some READ VAR tutorial but I couldn't get the data. There are few uncertainty in my mind. 

1. When I using M340 with P342020 what is the ethernet and modbus VP 5V5 r.m.c? 0.1.x

2. when I add network for ethernet it is unable to build.

3. What is the code error means for array check[2]?

 

I not sure what I miss out when configuring.

Early thanks for read and help in my problem.

 

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Farzad_Samimi
Ensign Ensign
Ensign
0
2147

Re: M340 read MODBUS device value

your syntax for ADDM is not quite right, you have to use '0.0.3{IP Address}Tcp.mbs'. make sure Data variable array size is the same as NB, see the pictures attached.

See Answer In Context

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Farzad_Samimi
Ensign Ensign
Ensign
0
2148

Re: M340 read MODBUS device value

your syntax for ADDM is not quite right, you have to use '0.0.3{IP Address}Tcp.mbs'. make sure Data variable array size is the same as NB, see the pictures attached.

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