Firejo
Member
I’m trying to create a message instruction in an Add-On Instruction in a CLX. I can create the tag but I’m forced to make it an “InOut” Usage tag. When I try to edit the parameters (click on the box with the three dots) I get an “ladder element field is non-editable. Invalid message tag in corresponding operand”. I’ve seen this before in the blog group (I did a search for the error) and found a small thread where “NFisher1978” indicated that he was able to make it work and posted a zip file with the AOI that he created (with a message instruction in it). I’ve imported it and have the same problem where I can’t edit the message instruction. I’m not online with the program and have tried everything I can think of. Anybody else run into this? I found a Rockwell document that indicates it should work. (http://www.rockwellautomation.com/enabled/pdf/developerguide.pdf)