Help for connect an Arduino & CPU314 PN/DP With "MODBUSPN"

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ThePlcMaster
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Joined: Tue Feb 07, 2017 5:58 am

Help for connect an Arduino & CPU314 PN/DP With "MODBUSPN"

Post by ThePlcMaster » Mon Jul 09, 2018 6:06 pm

Hi.
Can you help me with how is the use of MODBUSPN instruction in a CPU 314C PN/DP.
I need to read data from an Arduino with MODBUS an TCP protocol.

I got it with a S7-1200 and the "MB_CLIENT" instruction sucesfully but I can´t do it with CPU314.

The parameters are not the same and mainly I need to know where is the place for the port adress, ID And the
read data of the Arduino in the instruction.

Someone can help me ?

Thanks in advance.

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