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General

ValueRead

Read the value of a variable node. This uses the service detailed in the <a href="https://reference.opcfoundation.org/Core/Part4/v105/docs/5.10.1"> relevant section of the OPC UA reference specification</a>.

post/v2/read

Request body

Response

The operation was successful or the response payload contains relevant error information.

valueobject

Value read

dataTypestring

Built in data type of the value read.

sourcePicosecondsinteger

Pico seconds part of when value was read at source.

sourceTimestampstring date-time

Timestamp of when value was read at source.

serverPicosecondsinteger

Pico seconds part of when value was read at server.

serverTimestampstring date-time

Timestamp of when value was read at server.

Changes

Changed in 3 of the 27 revisions of this API.10

  • bfba75adb8073See the full diff
    • ○

      added the non-success response with the status 400

      response-non-success-status-added

    • ○

      added the non-success response with the status 408

      response-non-success-status-added

    • ○

      added the non-success response with the status 500

      response-non-success-status-added

  • d4f4e58029fb2See the full diff
    • ○

      api tag General added

      api-tag-added

    • ○

      api tag TwinMethods removed

      api-tag-removed

  • e285a38b6ca15See the full diff
    • ○

      api tag TwinMethods added

      api-tag-added

    • ○

      api tag General removed

      api-tag-removed

    • ○

      removed the non-success response with the status 400

      response-non-success-status-removed

    • ○

      removed the non-success response with the status 408

      response-non-success-status-removed

    • ○

      removed the non-success response with the status 500

      response-non-success-status-removed