Using the OPC Client I/O Driver

The OPC Client I/O driver allows you to bring OPC data into and out of iFIX. It is automatically installed with iFIX; however, if you choose to create a customized install program, the OPC Client I/O driver is an optional component.

To use the OPC I/O Driver:

1. In the Database Manager, in the Driver field for the primary block, select OPC - OPC Client vx.xx from the list.

2. Click the Browse button next to the I/O Address field. The Browse I/O Address dialog box appears.
3. Select an I/O point from an available server and group, and then click OK to exit the dialog box. The I/O Address field will display the following:

Server;Group;ItemID[;AccessPath]

When you click out of the I/O Address field, ;No Access Path will be appended to the existing text, like this:

Server;Group;ItemID;NoAccessPath

4. If applicable, from the Signal Conditioning list, select a format for mapping the values coming from your process hardware.
5. If applicable, from the Hardware Options list, select a device control addressing format for the database block. This selection is overridden if you select a datatype from the Requested Datatype list on the Item Configuration page of the OPC Client I/O driver Power Tool.

For detailed information, refer to the OPC Client Driver online help.

 

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How Do I...