Difference between revisions of "Activity:ConfigureOpcUa...Item (Activity)"
m (KNO moved page ConfigureOPCUA...Item (Activity) to ConfigureOpcUa...Item (Activity) without leaving a redirect) |
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| − | The | + | The ConfigureOpcUa...Item activities register a single variable within an [[Activity:CreateOPCUAConnection (Activity)|OPC UA Connection]]. Only registered variables can be accessed later on with [[Activity:AccessOPCUAVariable (Activity)|AccessOPCUAVariable]] activities. |
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| + | This page is a generic description of the available activities for registering Opc Ua variables, namely | ||
| + | * [[Activity:ConfigureOpcUaAnalogItem_(Activity)]] | ||
| + | * [[Activity:ConfigureOpcUaDiscreteItem_(Activity)]] | ||
| + | * [[Activity:ConfigureOpcUaMultiStateDiscreteItem_(Activity)]] | ||
| + | * [[Activity:ConfigureOpcUaTwoStateDiscreteItem_(Activity)]] | ||
=Description= | =Description= | ||
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* [[Activity:CreateOPCUAScope (Activity)]] | * [[Activity:CreateOPCUAScope (Activity)]] | ||
| − | [[Category:OPC]] | + | [[Category:OPC|ConfigureOpcUa...Item (Activity)]] |
Revision as of 14:17, 31 August 2015
The ConfigureOpcUa...Item activities register a single variable within an OPC UA Connection. Only registered variables can be accessed later on with AccessOPCUAVariable activities.
This page is a generic description of the available activities for registering Opc Ua variables, namely
- ConfigureOpcUaAnalogItem (Activity)
- ConfigureOpcUaDiscreteItem (Activity)
- ConfigureOpcUaMultiStateDiscreteItem (Activity)
- ConfigureOpcUaTwoStateDiscreteItem (Activity)
[edit]
Description
| Configure OPC UA Variable | |
|---|---|
| Name | ConfigureOPCUAVariable |
| Purpose | Configure a single OPC UA variable |
| Category | UBIK OPC UA Interface |
| Returns | True if successful |
| Version | 2.4.1+ |
Arguments
| Argument | Type | Direction | Purpose |
|---|---|---|---|
| BrowsePath | String | In | Specifies the browse path of the item on the server e.g. "/2:Plant1/2:Machine1/2:Unit1/2:Sensor1"). For a more detailed descriptions please refer to the OPC UA specification. |
| AutoRead | Boolean | In | Specifies the variable to be read from the server automatically after a connection to the server has been established. |
| Subscribe | Boolean | In | Specifies that the variable should automatically be entered into a subscription with the server to be updated with any changes to its value. |
| Interval | TimeSpan | In | Specifies the publishing interval to be used for the subscription. All variables using the same publishing interval are grouped together in a subscription for each publishing interval. |
| IndexRange | OpcUaIndexRange | In | For arrays, specifies the index range to be read or written. If left null, the entire array will be transferred. |
| Result | Boolean | Out | True if successful, false if failed |
Usage
This activity is used to configure a single variable for later access within an OPC scope, only configured variables will be accessible.
Example
The ConfigureOPCUAVariable activity, as used in the larger example "Read value from OPC variable":
