ID31: a Linux/PCI based beamline control

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ID31 a Linux/PCI based beamline control

• Alejandro HOMS-PURON
• BLISS, ESRF

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Presentation outline

• VME to PCI/cPCI Transition
• ID31 Control Project
• New hardware
• Electronic instrumentation distribution
• Software changes
• Points to be defined/worked on

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VME to PCI/cPCI Transition

• PCI/cPCI advantages
• High speed bus
• Lot of hardware available in the market
• Today PCs offer low cost PCI platforms and access
  to latest CPU technology
• Implementation of control systems with
  interesting performance/cost and good maintenance
• Must be gradual in the ESRF

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VME to PCI/cPCI Transition

• SBS 618/620 PCI-VME bus coupler
• Optical link, higher noise immunity in distant
  connections, lt 100 ns cable latency (25 m)
• Memory (I/O) mapping, DMA (35 Mbytes/s)
• Linux OS
• Remote access
• Drivers for commercial boards
• Smooth transition from current software

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ID31 Control Project

• New hardware
• Flexible Triggering Module (FTM) - GPIB
• New counter board (CCT8)
• Fast motor controller
• Serial lines board and Ethernet box
• Multifunction board
• Other
• Industrial PC
• Keyboard Video Mouse (KVM)

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ID31 Control Project

• Fast Triggering Module (GPIB)
• Digital and analog I/O signals
• User-programmable internal µController
• Complex timing/triggering configurations
• General Purpose Counter Board
• Eight 100 MHz 32-bit counters
• Gate and Trigger inputs, two DO
• Versatile signal router

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ID31 Control Project

• Other hardware points in analysis
• Field bus for temperature
• Use temperature to interlock devices
• Problem in VCT6 with PCI control
• Software
• Linux drivers for VPAP, VCT6, CC133 (BIT3)
• TACO/TANGO, direct access to drivers
• Spec5 Python, eval( ) function, etc.
• PCI enumeration problem

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Control hutch
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Between optic and exp. hutches
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Experimental hutch