Hi guys
I am a beginner when it comes to PLC and AB. Today I started to make some backups of different ACD files from controllers and I encountered something that made me a little confused.
Look at the attached photo, you can see that I can see two controllers with different IP. In the machine I can only see one controller. When I run a upload on both of them, I get the same ACD file as far as I can see.
Why do I see two controllers? Do I need to make backup of both of them? And it says that number two is under something called A2. What is that?
The controllers are running version 31.011.
