Hello everyone,
I am currently facing a communication issue between a Universal Robots robot and a Siemens S7-1500 PLC connected via Profinet.
I am not receiving the PowerOn signal on the PLC side, and I am also unable to exchange data: I cannot send an integer from the PLC to the robot, nor from the robot to the PLC.
The configuration appears to be correct on both sides.
The I/O mapping has been set up following the official example:
https://www.universal-robots.com/articles/ur/interface-communication/profinet-how-to-guide-e-series/
However, the behavior suggests that although the connection seems established (no obvious errors), there is no actual data exchange between the devices.
Has anyone encountered a similar issue or can suggest what to check?
Best regards,
Samuel Seijo

