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

**URL:** <https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943>\
**Category:** Industrial\
**Created:** [7 April 2022 14:35 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943 "2022-04-07T14:35:12Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Nilava1992](https://avatars.discourse-cdn.com/v4/letter/n/34f0e0/32.png) [@Nilava1992](https://discourse.nodered.org/u/Nilava1992)\
**Post date:** [7 April 2022 14:35 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943/1 "2022-04-07T14:35:12Z")

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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,  
Nilava

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**Author:** ![Cristiano](https://avatars.discourse-cdn.com/v4/letter/c/b5e925/32.png) [@Cristiano](https://discourse.nodered.org/u/Cristiano)\
**Post date:** [13 April 2022 22:52 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943/2 "2022-04-13T22:52:32Z")

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Hello

What OS? linux or ms?

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**Author:** ![Nilava1992](https://avatars.discourse-cdn.com/v4/letter/n/34f0e0/32.png) [@Nilava1992](https://discourse.nodered.org/u/Nilava1992)\
**Post date:** [19 April 2022 06:32 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943/3 "2022-04-19T06:32:58Z")

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Hi Cristiano,  
It is Windows 10.

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**Author:** ![Cristiano](https://avatars.discourse-cdn.com/v4/letter/c/b5e925/32.png) [@Cristiano](https://discourse.nodered.org/u/Cristiano)\
**Post date:** [18 May 2022 08:45 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943/4 "2022-05-18T08:45:55Z")

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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

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [17 July 2022 08:46 UTC](https://discourse.nodered.org/t/mpi-ppi-dp-communication-through-node-red-contrib-s7/60943/5 "2022-07-17T08:46:33Z")

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