AdvancedHMI Software
General Category => Support Questions => Topic started by: ShriramPendse on February 20, 2014, 09:10:17 AM
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Hi,
I am using AdvHMI V361 ModTCP driver for reading/writing to ModTCP PLC . For a while comm is OK , after some time randomly I get
" com fail " exception 20 at Read function at this line
Else
Throw New MfgControl.AdvancedHMI.Drivers.Common.PLCDriverException("Com Fail - " & result)
End If
What could be the reason & way to solve this issue ?
Shriram Pendse
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Hello,
My problem is same too, but still have not found the solution :)
http://advancedhmi.com/forum/index.php?topic=283.0
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Hi,
Most of the errors are due to communication , network , Received data in incorrect format .
Very strong exception handling is required to overcome these and make application robust .
Some of the experts may give guidelines how the application would continue even after exceptions
(handled or unhandled ) .