AlfredoQuintero
Lifetime Supporting Member
I want to make an addition to my statement in post above.
Of course you can issue service 0x53 to a class and an instance. In this case the class is 0x6B which is the ID of the Symbol Class. The problem is that you would need to find out the instance ID of the tag, which is assigned by the Logix application. We discussed this issue to some extent in this not so old post:
http://www.plctalk.net/qanda/showpost.php?p=868350&postcount=64
Of course you can issue service 0x53 to a class and an instance. In this case the class is 0x6B which is the ID of the Symbol Class. The problem is that you would need to find out the instance ID of the tag, which is assigned by the Logix application. We discussed this issue to some extent in this not so old post:
http://www.plctalk.net/qanda/showpost.php?p=868350&postcount=64