EthernetIPforCLXCom Subscribe without a form

[Pier-Luc Duchaine]

Hi,
I got an issue when I tried to subscribe to a ControlLogix, and the only information I was able to find is from StackOverflow. As I don't have a SynchronizingObject (no form) is it possible to subscribe to EthernetIPforCLXCom.

Is it the same thing with EthernetIPforPLCSLCMicroCom? (I will have to work with those too)

[Archie]

Version 3.64 fixed a problem in the ControlLogix driver that would not allow subscribing without a synchronizing object.

[Pier-Luc Duchaine]

In version 3.66 (just downloaded it) and I had a look at the changes in the file EthernetIPforCLXCom.vb.

Not sure if it can happen, but the line 1253 allow null for SynchronizingObject, but line 1258 use it.

[Archie]

You are correct. If trying to read a sub-element such as Timer.ACC without a SynchronizingObject, it would throw an exception. I fixed that code for the next release.

[Pier-Luc Duchaine]

Thanks, great work by the way. I am only working with this for a couple of weeks, and except some issue as I work with a headless (no form) system, everything is pretty smooth.