is possible read variables from PLC ac500 eth4 to raspberry pi
i am try to read variables trough the OPC configuration protocol, the ac500 PLC of abb eth4 and a raspberry pi to be able to read the PLC variables, is this possible?
Asked 7 months ago
Answers
1
What I have done is to use Modbus TCP Client library in Raspbery pi and to communicate with AC500 to collect data into pi and Run OPC server in Pi as well to send the data to my PC by using OPC Client app.
Below are the things I have used.
1. Use Modbus TCP Client Library in pi.
2. AC500 used as a Modbus TCP Server.
3. Used OPC Server application into pi.
4. Used OPC Client application into my PC.
You can also check Codesys website, as per my best knowledge they have codesys OPC server app for Raspberry pi and if it so then you can directly run the codesys opc server in pi to directly communicate to AC500.
Below are the things I have used.
1. Use Modbus TCP Client Library in pi.
2. AC500 used as a Modbus TCP Server.
3. Used OPC Server application into pi.
4. Used OPC Client application into my PC.
You can also check Codesys website, as per my best knowledge they have codesys OPC server app for Raspberry pi and if it so then you can directly run the codesys opc server in pi to directly communicate to AC500.
Answered 6 months ago
0
A python script can comunicate to ac500 via Modbus, using pymodbus library (https://pymodbus.readthedocs.io/en/la...).
Answered 3 months ago
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