Kickoff Meeting for the new Unified TACSA Control System

Date: Wednesday 14.December 2011
Attendees: Holger Brand, Sascha Yakuschev, Matthias Schädel, Egon Jäger and Jon Petter Omtved

Summary of discussion

In prinzip we want a new control system which is divided in two parts:

• Device Layer
• User Layer

Following questions and priorities were discussed:

• First of all is to have a list of all signals and which device handle it.
• Which signal is fast and how much is the amount of data?
• Which program part must be running first?
• The magnet program has low priority!
• All programs should use the same LabVIEW version.

Device Layer

This part collects all input parameter into the system and provides output data.

• Software:
  • Nodal read parameter via "acc.-server". 1 sec. response.
    • Controls cups , moves DC2, DC4 and add. DC5 (in/out) and read currents.
    • Read current from trafos DT2 and DT3.
    • Read amplification trafos DT2/DT3 and cups DC2/DC4/DC5, "Virt.-Acc.", status.
    • Read out from other UNILAC cups (safety), status Gate valves etc.
• Hardware:
  • FPGA read "fast" input parameter (electrical signals)
  • Macro pulse ["MP"] (width, rate): --> TTL 5ms/50Hz
  • Trafo signal (current); DT2 and DT3: --> Freq. < 8MHz TTL, comes from LSB5 via cable terminal BNC.
  • Trafo signal (current); DT2 and DT3: --> Freq. < 8MHz TTL,
    comes from LSB5, separate line (9pol D-Sub), 3bit amplification(TTL), frame pulse (similar macro pulse)
  • DSSSDetec.-Rate (counts/sec); --> TTL
  • Rutherford Det.-rate; --> TTL
  • Target wheel (sync.); --> TTL-level (status: sync./async.)
  • Wheel position: 2 Bits TTL
  • EVR chopper on/off; --> MBS-bit, TTL < 50 ns
  • Pyrometer. setpoint for alarm --> TTL
  • Temperature analog 4..20mA
  • Vacuum readout 5x serial out (10 Channels)
  • Vacuum status (good/bad); --> 10 relay outputs 24V
  • "FPGA"status of all inputs and response of setted values and alarms.
  • 16x Interlock status TTL --> Chopper interlock --> TTL level
  • Magnet Measurement and setpoints: ADC/DAC <--> magnet power via device bus. New PCI-Interface card in beam control pc possible
  • FPGA-A/D Input: Temperature pyrometer; --> analog 4..20mA --> ADC
  • Slit control analog 2channels Beckhoff -D/A converter 4..20mA --> ADC
  • All serial ports to one PC.
    • Vacuum control
    • Tasca-gas-control,
    • RTC-gas-control,
    • Veto-detector,
    • Tasca-H2-gas-control,
    • Veto-HV

User Layer

• Access to beam parameter via shared variables.
• Data handling and storage.
• Showing parameters GUI
• Common start procedures.
• One VI start beam control program and mbs-system together.
• Overview GUI has LAN access and gets data from former
  • TASCA Gas-Program
  • Magnets-Program
  • TASCA Vacuum-Program and
  • writes on one common log file on disk (ascii).
• File handling
  • Only aquisition --> system write zero numbers in integral column.
  • Aquisition and measurement --> system writes real integral in column.
• Generates report of main experiment parameters on printer.
• Alarm handling: Pieper
• Presetted filenames, run names , data volume size
• Web publishing--> LV runtime engine on each pc in local net?
• Proposal for the Unified TCS GUI by HolgerBrand:
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-- HolgerBrand - 09 Jan 2012