Error connecting to PLC: Error - TCP connected, ISO didn't

Hi,

I want to read data in node-red from my plc. I followed the steps of this: https://support.industry.siemens.com/tf/ww/en/posts/s7-communication-with-node-red/159131/?page=0&pageSize=10.

But I get this error:Error connecting to PLC: Error - TCP connected, ISO didn't.

If someone can help me, please let me know.

Thank you

Hi vallll,

I had the same error.
I suggest you to look carefully to IP address, RACK and SLOT.  It must be equal to PLC configuration.

By the way, I've problems on node-red-constrib-s7 distribution.  I had 3.1.1 and I changed it to the previous one, 2.2.1.

Trying to help,

Guillem