OPCUA.READ

Reads a value from an OPC UA Server.You can use the Function Wizard for this function.

Syntax

=OPCUA.READ(Producer, Node, Target[,ResultKeys, Timeout])

Arguments

Name

Description

Producer

Producer to use for publishing.

Node

Path of the node to read or node id.

Target

Target of the result of the write operation. Can be either INBOX(), OUTBOX(“MsgID”) or a cell range.

ResultKeys

Optional. Limit the result to the specified JSON Keys.

Timeout

Optional. The time to wait for an answer. When left empty a 20 second timeout is being used.

Return Value

The function OPCUA.READ always returns a unique random request ID, which can be used with REQUESTINFO to check the state of the request.

Examples

Function

Result

Comment

=OPCUA.READ(“OPCUA Producer”, “/Objects/1:Machines/1:H1mrblX0X/name”,INBOX())

The request ID

This reads the name of the machine with the id “H1mrblX0X” and places the result into the Inbox.