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I’m new ho the Rockwell Ethernet/IP and EDS topic and can’t understand one thing. It is possible to have the Config data organized in tags (with correct data type) via an .eds file – why can’t I do this with the I/O data although I define the data type just like I do with the config data?
It seems weird to me that you have to get a ‘blessing’ from Rockwell itself to do this: https://www.rtaautomation.com/add-profile-aop/ and even weirder that I cannot find this information on Rockwell’s www. I tried to look this up in a FLIR IR camera eds (FLIR got this blessing) but it doesn’t even have a Params section. The tag names are not even present in the EDS. How does it work then?
EDS files will never reference tags. Tags are nice data reference for AB PLC’s but are not part of the Common Industrial Protocol (CIP) data model that are used by EtherNet/IP and DeviceNet.
Remember EtherNet/IP (and all CIP protocols) is designed for speed and determinism. This means the data packets aren’t weighed down with meta data. The EDS nicely identify a device but doesn’t carry any extra information that links them to an AOI or AOP in the AB PLC.
The good news is you are not missing anything.
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