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1

Support Questions / Read/Write AOI tags

« on: April 13, 2015, 03:50:18 PM »

Hi guys,

Does anyone know what the syntax would be for reading or writing to a tag in an Add On Instruction?


Thanks!

2

Support Questions / Solved! EthernetIPforCLXCom1.Dispose not disposing of the connection

« on: June 05, 2014, 07:27:17 PM »

Hi Guys,

I'm trying to create an app that will scan the PLCs in a list to see if the PLC battery needs changing. So I added a EthernetIPforCLXCom1 control named "GeneralCLXCom" (I just renamed the default name for the control since I thought that I would be needing more than one), and created a list of (ControlLogix) PLCs to read, read the state of "Controller.BatteryLow" in that PLC, print the result, and then I *try* to dispose of the control with these two lines:

GeneralCLXCom.CloseConnection()
GeneralCLXCom.Dispose()

They don't appear to be doing anything, and if left unchecked, VB.Net 2010 will throw an exception once the number of connections has reached 11. As a poor work around, I bumped up the upper limit of the DLL array to 1000.

The code does run through the Dispose function, but doesn't it need to decrement MyDLLInstance as well?


Thanks!