Get attribute of multiple nodes at once|OPC UA Implementation: Stacks, Tools, and Samples|Forum|OPC Foundation

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Get attribute of multiple nodes at once
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Hitomi Kiguchi
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07/22/2019
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08/03/2019 - 17:59
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Hi,
I have implemented a client that extracts data from a certain OPCUA server.
I implemented using the attribute read service to acquire the value of a node of 700 variable classes, but it takes about ten seconds to acquire and it is too late
I think this is because the communication between server and client occurs 700 times.
Is there any way to get attributes of multiple nodes at once
Please tell me what I can do to improve my speed
Thank you
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Randy Armstrong
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08/04/2019 - 22:00
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The Read service takes an array of NodeId/AttributesId. You can read as many attributes as you need in a single call.

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