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Accessing Siemens S7 PLCs over Node-RED - Printable Version

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Accessing Siemens S7 PLCs over Node-RED - Armin@netPI - August-23rd-2019

Today I want to highlight a Node-RED node that is able to read/write data from/to a Siemens PLC (S7-1200 or S7-1500) over Ethernet(PROFINET) on netPI.

The node's home is here https://flows.nodered.org/node/node-red-contrib-s7comm and is maintained by Hilscher.

We have included this node in netPI's Node-RED Docker Container you can pull from repository "hilschernetpi/netpi-nodered" from Docker Hub on your netPI.

If you have an "old" type of PLC such as S7-300 or S7-400 having no Ethernet connectivity but MPI/PROFIBUS instead you can use this device https://www.hilscher.com/products/product-groups/gateways/for-direct-mounting-plug/nl-50-mpi/ in between netPI and PLC and your are able to use ths S7  node too.