MPI/PPI/DP communication through node-red-contrib-s7

Dear all,
I am new to Node-Red.
I have a Siemens PLC S7 CPU 315-2 DP. It has no PROFINET/ ETHERNET/MODBUS communication port and have only 2 PROFIBUS port.
I want to fetch data from the PLC using 'node-red-contrib-s7' node in MPI/PPI/DP mode. I have connect the PLC to my PC with Siemens MPI 'PC Adapter USB A2'. I am not able connect the node to the PLC. Kindly anyone help me to connect the node to fetch the real-time data from plc.
Please also guide me if any other method is there to communicate with S7 CPU 315-2 DP from node-red and fetch the data.

Thank you all,


What OS? linux or ms?

Hi Cristiano,
It is Windows 10.

Sorry I'm been away for long.

Can you provide some screenshot ?

2 important details about, 1st install the recent drive from siemens and 2nd setup the set pg interface, make sure your s7 connection is point to the usb adapter

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.