88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
import ch.psi.pshell.epics.Positioner as Positioner
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import ch.psi.pshell.epics.ChannelDouble as ChannelDouble
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dry_run = False
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if get_exec_pars().source == CommandSource.ui:
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start = 50.0
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stop = 100.0
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step = 5.0
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nb = 3
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lat = 0.300
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plt = None
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else:
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start = args[0]
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stop = args[1]
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step = args[2]
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nb = int(args[3])
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lat = args[4]
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plt = args[5]
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if plt is not None:
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plt.clear()
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#plt.setStyle(plt.Style.ErrorY) #Must be set by Plugin otherwise first scan is not shown
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plt.addSeries(LinePlotErrorSeries("Values"))
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plt.getAxis(plt.AxisId.X).setLabel("Gun Beam Phase (deg)")
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plt.getAxis(plt.AxisId.Y).setLabel("SINEG01-DICT215:B1_CHARGE")
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if dry_run:
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bph = Positioner("Beam phase", "SINEG01-RSYS:SET-BEAM-PHASE-SIM", "SINEG01-RSYS:SET-BEAM-PHASE-SIM")
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rph = ChannelDouble('RF phase', "SINEG01-RSYS:SET-VSUM-PHASE-SIM")
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q = ChannelDouble("Charge", "SINEG01-DICT215:B1_CHARGE-SIM")
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q.initialize()
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q.monitored=True
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else:
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bph = Positioner("Beam phase", "SINEG01-RSYS:SET-BEAM-PHASE", "SINEG01-RSYS:GET-BEAM-PHASE")
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rph = ChannelDouble('RF phase', "SINEG01-RSYS:SET-VSUM-PHASE")
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#st = Stream("ICTstream", dispatcher)
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#q = st.addScalar("Charge", "SINEG01-DICT215:B1_CHARGE", 1, 0)
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#st.initialize()
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#st.start()
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#st.waitValueChange(10000)
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q = ChannelDouble("Charge", "SINEG01-DICT215:B1_CHARGE")
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q.initialize()
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q.monitored=True
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bph.config.minValue = -360.0
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bph.config.maxValue = 360.0
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bph.config.precision = 3
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bph.config.rotation = False
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bph.config.resolution = 0.01
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bph.config.save()
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bph.initialize()
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rph.initialize()
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rph.monitored=True
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rph0 = rph.read()
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#Record callback: uptate of output plot
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def after_sample(record, scan):
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if plt is not None:
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plt.getSeries(0).appendData(record.positions[0], record.values[1].mean, record.values[1].stdev)
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try:
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rph_averager = create_averager(rph, nb, 0.1) # Set polling time to -1 for BS data to get all messages
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q_averager = create_averager(q, nb, 0.1)
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q_averager.monitored=True
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r = lscan(bph, (rph_averager, q_averager), start, stop, step, latency=lat, after_read = after_sample)
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beamphase = r.getPositions(0)
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rfphase = [val.mean for val in r.getReadable(0)]
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rfphaserms = [val.stdev for val in r.getReadable(0)]
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charge = [val.mean for val in r.getReadable(1)]
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chargerms = [val.stdev for val in r.getReadable(1)]
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finally:
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rph.write(rph0)
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bph.close()
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rph.close()
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q.close()
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#Setting the return value
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index_max = charge.index(max(charge))
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#bph_ref_guess = beamphase[index_max] - 80
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#rph_ref_guess = rfphase[index_max] - 80
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bph_ref_guess = (start + stop)/2
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set_return([bph_ref_guess])
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