§2.9 – Simple Device Replacement

What if you could replace an IO device on a PROFINET network without using a computer?  Surprise, there is no ‘what-if’ here – you can do this now.  And there are no addressing switches to set either.  The network keeps running the whole time!

Here are the complete instructions for using this feature:

  1. Disconnect and remove the defective device
  2. Replace and reconnect the new device

There are a few caveats: the replacement device has to be the same as the device it’s replacing.  No surprise there; you can’t replace a drive with an IO block.  And since PROFINET uses device names, not numbers, the replacement device has to have a blank name (which it will from the factory).