Creating a Client Item

Specify the client items in your App Connect for Manufacturing nodes so that the client item data is available in your message flows.

1. Navigate to Manufacturing Perspective > Client Items.
2. Right-click the Item folder and select Add Mapping Node. The Name Mapping Node wizard window loads.
3. Specify a name for the Mapping node and click OK. The new create client item gets created under the Item folder.

   Property	Default value
   Client Item Path	The client item mapping path. For example, /Item/<OPC_UA_Server>/currentTime
   Client Item ID	Displays the Universally Unique Identifier (UUID) generated by the application's base product. The generated ID has 36 characters of random numbers.
   Data Source	The created data source mapping path.
   Source Item Path	The source item mapping path. The source item is listed from the OPC UA Server.
   Sample Rate	The sampling interval is the fastest rate at which the OPC UA Server can sample its underlying source for data changes.
   Queue Size	The queue size for the queue that holds the notifications data in the OPC Server, which is generated between two consecutive publishing cycles.
   Methods	Methods that are defined for a client item are listed.
   Events	Events that are defined for the client item are listed.

4. To map the client item with a source item, select the new client item and then the appropriate source item from the Source Items view.
5. Enter the required configuration values, and click Create Client Item. You can see the data source activity in the Logging view.
6. Optional: To edit this client item, click Update Client Item or click the Create Client Item Tree to create multiple client items based on the OPC UA Server Source Item tree.
   Note: Special characters are accepted in the Source Items when you create multiple client items by using the Create Client Item Tree.
7. Optional:  OPC-UA-Input   To add multiple client items in the OPC-UA-Read node flow, press Ctrl, click client items (belonging to the same datasource), and then click Add Client Item to Read. The client items get added to the Selected Client Items panel in the Select view.
   Note:

   • If the data source to which the client items belong is deleted, such client items are highlighted in Red in the message flow properties editor section.
   • If the source item is removed from the OPC Server, and you select a client item, you get a Bad_NodeIdUnknown The node id refers to a node that does not exist in the server addressspace error message.
   • If the data source or the OPC Server to which the client items belong is offline, such client items are highlighted in Red.