OPCUA.READ

star This is a Streamsheets Professional feature.

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.