Paper |
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MOPPC053 |
A Safety System for Experimental Magnets Based on CompactRIO |
210 |
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- S. Ravat, L. Deront, A. Kehrli, X. Pons
CERN, Geneva, Switzerland
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This paper describes the development of a new safety system for experimental magnets using National Instruments CompactRIO devices. The design of the custom Magnet Safety System (MSS) for the large LHC experimental magnets began in 1998 and it was first installed and commissioned in 2002. Some of its components like the isolation amplifier or ALTERA Reconfigurable Field-Programmable Gate Array (FPGA) are not available on the market any longer. A review of the system shows that it can be modernized and simplified by replacing the Hard-wired Logic Module (HLM) by a CompactRIO device. This industrial unit is a reconfigurable embedded system containing a processor running a real-time operating system (RTOS), a FPGA, and interchangeable industrial I/O modules. A prototype system, called MSS2, has been built and successfully tested using a test bench based on PXI crate. Two systems are currently being assembled for two experimental magnets at CERN, for the COMPASS solenoid and for the M1 magnet at the SPS beam line. This paper contains a detailed description of MSS2, the test bench and results from a first implementation and operation with real magnets.
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Poster MOPPC053 [0.543 MB]
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