To know more about Node-Red

i am a student. i would like to know, is it possible to pull the data from the Simatic PLC with this software?

Moved to General as this is not about sharing a new Node that you have developed.

In answer to your question: most likely.
Node RED can be extended with add-on nodes, that cover a wide range of requirements.

Library - Node-RED (

Also, the Youtube channel is a great resource to learn.

Node-RED - YouTube

There are many thousands of bits of hardware out there. When asking a question like this, it is helpful to share what you've already discovered such as its website and what interfaces it supports.

There are several installable contrib nodes for Siemens PLC in the flow library & palette manager.

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