Configuring a tag in RSView32

Once you have created an OPC node for the emulator, you can add tags from your logic project to your RSView32 tag database. To do this:

1. Open your RSView32 project.
2. In your project’s System folder, open the Tag Database editor.
3. In the Data Source section of the Tag Database editor, click Device.
4. Click the button next to the Node Name field. This displays the Node Browser. Select the OPC node you created for the emulator and click OK.
5. In the Tag section of the Tag Database editor, select the type of tag you want to create from the Type list.
6. In the Data Source section of the Tag Database editor, click the button next to the Address field. This displays the OPC Address Browser.
7. In the OPC Address Browser, select the address you want to use with the tag and click OK.

8. Finish creating the tag by filling in the fields in the Tag Database editor:

For this field or control:	Set or enter:
Name	The name of the tag you want to create.
Security	If you have set up security for your RSView32 project, set the security class associated with the tag.
Description	Type a description of the tag (optional).
Minimum	The minimum value for the tag (as used in RSView32).
Maximum	The maximum value for the tag (as used in RSView32).
Scale	A scaling value for the tag.
Offset	A value to add to the tag.
Units	The units for the tag.
Data Type	Select the data type for the tag.

9. Click Accept. The tag is stored in the tag database. You can now use the tag in your RSView32 project.

Creating a communications node in an RSView32 project

To create a communications node in RSView32 that uses the OPC topic for the emulator:
1. Open your RSView32 project.
2. In your project’s System folder, open the Node editor. In RSView32, a node represents a communications device, usually a programmable controller or another Windows application. In the Node editor, we will create a node that represents the emulator.
3. Set up the Node editor window as shown in the following table.

For this field or control:	Set or enter:
Data Source	OPC Server
Name	Enter a name for the node (representing the emulator). This can be the name of the emulator, if you like.
Enabled	Make sure this check box is selected.
Server	Click the button next to the Server Name field. If the emulator is running on the same computer as RSView32, select RSLinx OPC Server. Otherwise, select RSLinx Remote OPC Server.
Type	If the emulator is running on the same computer as RSView32, select In-Process. Otherwise, select Remote and enter the name of the computer running the emulator in the Server Computer Name or Address field.
Access Path	Leave this blank.
Update Rate	This defaults to 1.000 seconds (one update per second). If you need a faster or slower update rate, enter the update frequency.

4. Click Accept. This saves the node configuration.