OPCUA.READ
This is a Eclipse Streamsheets Premium 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 | INBOX(), OUTBOX("MsgID") or a cell range where the result will be placed. Make sure the cell range is big enough or not everything is displayed. |
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, if no error.
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. |