Add variables to the OPC UA data source
The variable can be created manually by assigning it a“name” and entering the“NodeID“.
By clicking on“Browse“, you can browse the server as an alternative to entering the name manually. In the window that opens, all variables are listed (displayed as a tree structure), which you can then select via the checkbox. Then confirm your selection by clicking on“Import” and close the window by clicking on“Close“.
The variables for the OPC UA data source have been successfully created and can now be used.
OPC variables can also be created via the variable import button.
In the window that opens, you can choose between data sources that have already been created.
OPC address syntax for quick entry
OPC variables can also be added with a quick entry.
A variable with a single field entry can be created here using the correct syntax.
In general, the following syntax applies to OPC addresses:
- [Datentyp].[NodeID]
Data types:
| Abbreviation | Description |
| X | Boolean |
| I1 | Byte |
| UI1 | UByte |
| I2 | Short |
| UI2 | UShort |
| I4 | Integer |
| UI4 | UInteger |
| I8 | Long |
| UI8 | ULong |
| F | Float |
| D | Double |
| S | String |
| V | Variant |
