The Static Database Access library was first introduced in EPICS (Experimental Physics and Industrial Control System) Release 3.11 in 1994. It provides an application program interface (API) for database configuration tools written in C to manipulate database record definitions and is used for various tasks within the core EPICS software. This paper describes the structure of a replacement for ...

* Work supported by the Office of Energy Research, Basic Energy Science of the US Department of Energy, the Oak Ridge National Laboratory, the Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF), and the Land Berlin. Abstract The set of externally visible properties associated with process variables in the Experimental Physics and Industrial Control System (EPICS) is p...

The Advanced Photon Source uses two distinct control programs for orbit control and stability—a full-featured workstation-based program for orbit control (sddscontrollaw) and an EPICS-based system, the RealTime Fast Feedback System (RTFS), to reduce orbit motion. The sddscontrollaw program has been ported to EPICS and moved from the UNIX environment to an EPICS IOC attached to the RTFS. This EP...

The control system for Pohang Light Source (PLS) was designed about twelve years ago and has been working without serious problem so far. However, as the demand for the application programs for accelerator physics and data analysis increases, the present control system shows the lack of flexibility and control speed. To have faster and more flexible performance, we have decided to convert the c...

One of the open source software tool kit is EPICS (Experimental Physics and Industrial Control System) developed and maintained by Argonne National laboratory, US and is in use worldwide. It maintains the server client distributed control system. Communication between server and client are done through a named piece of data called Process Variable (PV). There may be many client and many servers...

The Duke Free Electron Laser Laboratory currently operates two FELs: the OK-4/Duke Storage Ring FEL, and the Mark III IR FEL. Both of these systems were among the early adopters of the Experimental Physics and Industrial Control System (EPICS). The Mark III EPICS control system was completed and operational in September, 1993. The Duke Storage Ring was commissioned in November of 1994 using EPI...

The communications protocols utilized in the Experimental Physics and Industrial Control System (EPICS) have been in use, essentially unchanged, for more than 10 years. With more than 100 EPICS sites worldwide, there is increasing justification for performance and functional upgrades, but with a paramount requirement to remain backward compatible with the existing user base. The future viabilit...

The only proof of this I know is kind of fiddly and not enlightening. But the point is that in most categories that appear ‘in nature,’ regular, strong, and extremal epics are about the same, and all are the correct notion of quotient, while ordinary epimorphisms may not be. For example, N→ Q is epic in Rings, but not extremal epic. In Top the epics are the surjective maps, while the regular = ...

The Experimental Physics and Industrial Control System (EPICS) requires expensive hardware and software to provide the high performance and high reliability required for accelerator control. No more than several years ago, personal computers based on Intel x86 microprocessors lacked computing power to compete with workstations, such as SPARCstation. However, with the advent of the high performa...