Monitoring Commercial Conventional Facilities Control with the APS
Control System - The Metasys to EPICS Interface

G.J. Nawrocki, C. L. Seaver, J.B. Kowalkowski
Advanced Photon Source, Argonne National Laboratory

As controls needs at the Advanced Photon Source matured from an installation phase to an operational phase, the need to monitor the existing conventional facilities control system with the EPICS-based accelerator control system was realized. This existing conventional facilities controls network is based on a proprietary system from Johnson Controls called Metasys. Initially read-only monitoring of the Metasys parameters will be provided; however, the ability for possible future expansion to full control is available. This paper describes a method of using commercially available hardware and existing EPICS software as a bridge between the Metasys and EPICS control systems.