OFSOPC Driver

The OFSOPC Driver enables Plant SCADA to communicate with OPC Factory Server (OFS), providing a gateway to a network of OFS-compatible devices.

For each Plant SCADA I/O server, a single connection to a local instance of OFS is established, allowing tight integration between the driver and the OFS configuration environment. Individual devices are addressed within a Plant SCADA project using OFS alias names.

Note: It is recommended that you use the OFSOPC driver with a version of Plant SCADA that is fully supported in accordance with AVEVA's Software Support Lifecycle and Retirement Policy. The driver will work with Citect SCADA 7.20 or later (or a later version of Plant SCADA), however it will not be fully tested or supported on these earlier versions. Search the AVEVA Support Site Technology Matrix to determine the support status for your current version of Plant SCADA.

The following diagram demonstrates a simple system installation using I/O server and PLC network redundancy.

Note: With the release of version 7.20, Plant SCADA supports the retrieval of time-stamped data directly from field devices. This capability is enabled by the Driver Runtime Interface (DRI), a component of Plant SCADA that is used by the OFSOPC driver to directly update time-stamped digital alarms, time-stamped analog alarms and event-based trends. For more information, see the topic Retrieving Time-stamped Data from Field Devices in the main Plant SCADA help.

See Also

System Requirements

Setting up Device Communication

Configuring Variable Tags

Advanced Configuration and Maintenance

Performance Tuning

Troubleshooting