I added the AB 1769-L2 device with Ethernet/IP, trying to access the tags that are already created in the PLC. This is my first time using Ethernet/IP to access PLC tags, so I use this manual
http://literature.rockwellautomation.co ... _-en-p.pdf, the class/instance/attribute as this manual addressed in the aggregate. However, I can't get the data from the PLC and also have some questions.
There are two tags in the list, however, I found only one request package sending from Aggregate server. If there is only one tag, it won't send any request package.

