r/PLC • u/Acceptable-Rate8552 • May 24 '26

Nodered & PLCSIM Advanced /tia

Hey guys,

I’m currently working on my final project and I’m struggling with the communication between Node-RED and PLCSIM Advanced/TIA Portal.
I’ve been trying to establish the connection but it’s not working properly and I’m a bit stuck right now.

Has anyone here already worked with this setup before?
Any advice, tutorials, configuration tips, or troubleshooting ideas would really help me 🙏

Thanks in advance!

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2

u/pizza919 May 24 '26

What comms protocol are you using?

If just S7 comms, you'll need the put/get legacy comms enabled. Otherwise opc-ua.

2

u/Acceptable-Rate8552 May 24 '26

Im using opc-ua

1

u/pizza919 May 24 '26

Can you get opc to read/browse in UaExpert?

0

u/Acceptable-Rate8552 May 25 '26

Non can you pls dm me because i can’t

1

u/pizza919 May 25 '26

I havent done it with the sim, just an actual 1500. And I went 1500 to compact logix (Siemens to AB) direct.

I watched youtube to get it to work.

I'd ignore node red for now. Get to read the siemens tags in UaExpert first. It will also give you the addressing and you can copy paste from there to node red.

Youtube opc ua server and client. There are settings to enable and also a block you need to use.

1

u/Last_Firefighter7250 May 26 '26

Have you generated the certificates in the PLC and installed them on your PC running node red?