114 lines
3.7 KiB
Python
114 lines
3.7 KiB
Python
is_panel = get_exec_pars().source != CommandSource.ui #Must be checked before callin "run"
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run("Devices/Elements")
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run("Devices/WireScanner")
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BPM_SENSORS = [("x","X1"), ("y","Y1"), ("q","Q1")] #(logic name sufix, channel sufix)
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#Paramter parsing
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prefix = args[0] if is_panel else "SINDI01-DWSC090" #"S30CB09-DWSC440"
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scan_type = args[1] if is_panel else WireScanner.WireX1
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scan_range = args[2] if is_panel else [-200, 200, -400, 400]
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cycles = args[3] if is_panel else 5
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velocity = args[4] if is_panel else 200
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bpms = args[5] if is_panel else get_wire_scans_bpms(prefix)
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print "WireScan parameters: ", prefix, scan_type, scan_range, cycles, cycles, bpms
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#Creating WireScanner object
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print "Creating scanner..."
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if prefix not in get_wire_scans():
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raise Exception("Invalid wire scan: " + prefix)
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scanner = WireScanner(prefix, scan_range, cycles, velocity, True)
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scanner.set_selection(get_scan_selection(scan_type))
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scanner.init()
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scanner.waitValue("At start", 60000)
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#List of stream channels
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channels = [("m_pos", scanner.motor_bs_readback.get_name()),
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("cur_cycle", scanner.curr_cycl.get_name()),
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("scanning", scanner.status_channels[0].get_name())]
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#bpms = ["SINDI01-DBPM060", "SINDI02-DBPM010"] #For testing
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for i in range (len(bpms)):
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for sensor in BPM_SENSORS:
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channels.append (("bpm" + str(i+1) + "_" + sensor[0], bpms[i] + ":" + sensor[1]))
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#Stream creation
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print "Starting stream..."
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st = Stream("pulse_id", dispatcher)
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scanner.curr_cycl.write(0)
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st.setFilter(scanner.curr_cycl.get_name() + ">0") #scanner.status_channels[0].get_name() + ">0" not used because we must the transition to know when the finished
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for c in channels:
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st.addScalar(c[0], c[1], 10, 0)
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st.initialize()
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st.start()
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st.waitCacheChange(10000) #Wait stream be running before starting scan
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#Pseudo-device returning the wire position
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class w_pos(Readable):
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def read(self):
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return scanner.get_sel_wire_pos(st.getChildren()[0].take())
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#End of scan checking
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scan_complete = None
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cur_cycle = None
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def check_end_scan(record, scan):
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global scan_complete,cur_cycle
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if record[4]<1:
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print "Data aquisition completed"
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scan_complete=True
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scan.abort()
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record.cancel() #So it won't be saved
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elif record[3] != cur_cycle:
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cur_cycle = record[3]
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get_context().dataManager.splitScanData(scan)
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#Metadata
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set_attribute("/", "Wire Scan", prefix)
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set_attribute("/", "Scan Type", scan_type)
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set_attribute("/", "Range", scan_range)
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set_attribute("/", "Cycles", cycles)
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set_attribute("/", "Velocity", velocity)
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#Scan
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def do_scan():
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global scan_complete, cur_cycle
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scan_complete=False
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cur_cycle = 1
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try:
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scanner.scan() #scanner.waitState(State.Busy, 60000) Not needed as stream filter will make the wait
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mscan (st, [w_pos()] + st.getReadables(), -1, -1, after_read = check_end_scan)
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except:
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if not scanner.isReady():
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print "Aborting scan"
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scanner.abort()
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if not scan_complete:
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raise
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print "Starting scan..."
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try:
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set_exec_pars(group= "y_{count}" if scan_type in [WireScanner.WireY1, WireScanner.WireY1] else "x_{count}");
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do_scan()
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if scan_type in [WireScanner.Set1, WireScanner.Set2]:
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scanner.set_selection(get_scan_selection(scan_type))
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scanner.curr_cycl.write(0)
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scanner.set_selection(get_scan_selection(scan_type, 1))
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scanner.init()
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scanner.waitValue("At start", 60000)
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set_exec_pars(group="y_{count}", reset=True)
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do_scan()
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finally:
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print "Closing scanner"
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scanner.close()
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print "Closing stream"
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st.close()
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