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Support for 64-Bit Integers in the OPC XML-DA Client Driver

Last Update: 11/12/2018
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At this time, the XML-DA specification supports 64-bit integers, but the OPC DA specification does not. Since the OPC XML-DA client is a driver in the OPC DA server, any 64-bit integer in the XML-DA server that is accessed will be reported as Bad quality (along with no value for any client application that is connected to the server).

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OPC XML-DA Client

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