get value from Subscription or server.Read which one is Fast|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

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get value from Subscription or server.Read which one is Fast
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Stitch35
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12/25/2018 - 06:47
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get value from Subscription or server.Read which one is Fast In 1 sec 

I want to get value from 3000 value of Tag in 1 sec

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Randy Armstrong
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12/31/2018 - 17:33
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You should never use Read for cyclic access to data.

Subscribe will always be more efficient.

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