OPCDAAuto.dll OPCGroup dataChange not work invoke after work a period time|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

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OPCDAAuto.dll OPCGroup dataChange not work invoke after work a period time
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jian xin
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11/25/2022
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03/16/2023 - 00:13
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I use OPCDAAuto.dll to connect OPC Server.Everything work normally,but after work about half an hour,dataChange event never work.

But i print check group status,like isActive/IsSubscribe...,every thing is ok.

Could anyone give me one hand? 

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Randy Armstrong
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05/30/2017
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03/16/2023 - 05:11
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Check your threading. A deadlock somewhere could explain the symptoms.

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