Control system for insertion devices at the Advanced Photon Source

Conference · Mon Sep 01 00:00:00 EDT 1997

OSTI ID:555505

Makarov, O A; Den Hartog, P; Moog, E R; Smith, M L ^[1]

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1. Argonne National Lab., IL (United States). Advanced Photon Source

Eighteen insertion devices (IDs) are installed at the Advanced Photon Source (APS), and three more are scheduled for installation by the end of this year. A distributed control system for insertion devices at the APS storage ring was created with the Experimental Physics and Industrial Control System (EPICS). The basic components of this system are operator interfaces (OPIs), input output controllers (IOCs), and a local area network that allows the OPI and IOC to communicate. The IOC operates under the VxWorks OS with an EPICS database and a sequencer. The sequencer runs an ID control program written in State Notation Language. The OPI is built with the EPICS tool MEDM and provides display screens with input and output fields and buttons for gap control of the IDs. Global commands like ``open all IDs`` are C-shell scripts invoked from the display menu. The algorithms for control and protection of the ID and ID vacuum chamber and the accuracy of gap control are discussed.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 555505
• Report Number(s): ANL/XFD/CP--94008; CONF-9706157--; ON: DE97053894
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
COMPUTER NETWORKS
COMPUTERIZED CONTROL SYSTEMS
DATA TRANSMISSION SYSTEMS
DISTRIBUTED DATA PROCESSING
MAN-MACHINE SYSTEMS
WIGGLER MAGNETS