Exemplo n.º 1
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    def __init__(self, transport):
        protocol = slave.protocol.IEC60488(msg_data_sep=' ',
                                           msg_term='\r',
                                           resp_data_sep=' ',
                                           resp_term='\r')
        super(SR5113, self).__init__(transport, protocol)

        self.backlight = Command('BL', 'BL', Boolean)
        self.contrast = Command('LCD', 'LCD', Integer(min=0, max=15))
        self.identification = Command(query=('ID', String))
        self.version = Command(query=('VER', String))
        self.remote = Command('REMOTE', 'REMOTE', Enum(True, False))
        self.status = Command(query=('ST', Register(SR5113.STATUS)))
        # TODO check if lines are readable. Check 40 character limit.
        self.line = CommandSequence(self._transport, self._protocol, [
            Command('LINE 1', 'LINE 1\r', String(max=40)),
            Command('LINE 2', 'LINE 2\r', String(max=40)),
        ])

        self.coarse_gain = Command('CG', 'CG', Enum(*SR5113.COARSE_GAIN))
        self.fine_gain = Command('FG', 'FG', Enum(*SR5113.FINE_GAIN))
        self.gain_vernier = Command('GV', 'GV', Integer(min=0, max=15))
        self.input_coupling = Command('CP', 'CP', Enum('ac', 'dc'))
        self.dynamic_reserve = Command('DR', 'DR',
                                       Enum('low noise', 'high reserve'))
        self.input_mode = Command('IN', 'IN', Enum('A', 'A-B'))
        self.time_constant = Command('TC', 'TC', Enum('1 s', '10 s'))
        self.filter_mode = Command('FLT', 'FLT', Enum(*SR5113.FILTER_MODE))
        self.filter_frequency = Command(
            'FF', 'FF', [Enum('low', 'high'),
                         Enum(*SR5113.FREQUENCIES)])
Exemplo n.º 2
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    def __init__(self, connection, idx):
        super(Loop, self).__init__(connection)
        self.idx = idx = int(idx)
        self.filter = Command('CFILT? {0}'.format(idx),
                              'CFILT {0},'.format(idx),
                              Boolean)
        self.limit = Command('CLIMIT? {0}'.format(idx),
                             'CLIMIT {0},'.format(idx),
                             [Float, Float, Float,
                              Enum(0.25, 0.5, 1., 2., start=1),
                              Integer(min=0, max=5)])
        self.manual_output = Command('MOUT? {0}'.format(idx),
                                     'MOUT {0},'.format(idx),
                                     Float(min=-100., max=100.))
        self.mode = Command('CMODE? {0}'.format(idx), 'CMODE {0},'.format(idx),
                            Enum('manual', 'zone', 'open', 'pid', 'pi', 'p',
                                 start=1))

        self.parameters = Command('CSET? {0}'.format(idx),
                                  'CSET {0},'.format(idx),
                                  [Set('A', 'B'),
                                   Enum('kelvin', 'celsius', 'sensor',
                                        start=1),
                                   Boolean,
                                   Boolean])
        self.pid = Command('PID? {0}'.format(idx), 'PID {0},'.format(idx),
                           [Float, Float, Float])
        self.ramp = Command('RAMP? {0}'.format(idx), 'RAMP {0},'.format(idx),
                            [Boolean, Float])
        self.ramping = Command(('RAMPST? {0}'.format(idx), Boolean))
        self.setpoint = Command('SETP? {0}'.format(idx),
                                'SETP {0},'.format(idx), Float)
        for z in range(1, 11):
            type_ = [
                Float(min=0),  # top value
                Float(min=0),  # P value
                Float(min=0),  # I value
                Float(min=0),  # D value
                Float(min=0),  # manual output
                Integer(min=0, max=5),  # heater range
            ]
            cmd = Command('ZONE? {0}, {1},'.format(idx, z),
                          'ZONE {0}, {1},'.format(idx, z),
                          type_)
            setattr(self, 'zone{0}'.format(z), cmd)
        if idx == 1:
            self.tuning_status = Command(('TUNEST?', Boolean))
            self.settle = Command('SETTLE?', 'SETTLE',
                                  [Float(min=0., max=100.),
                                   Integer(min=0, max=86400)])
        cdisp = [
            Enum('none', 'loop1', 'loop2', 'both'),
            Integer(min=0, max=1000),
            Enum('current', 'power', start=1),
            Boolean,
        ]
        self.display_parameters = Command('CDISP? {0}'.format(idx),
                                          'CDISP {0},'.format(idx), cdisp)
Exemplo n.º 3
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 def __init__(self, transport, protocol):
     super(Cursor, self).__init__(transport, protocol)
     self.seek_mode = Command('CSEK?', 'CSEK', Enum('max', 'min', 'mean'))
     self.width = Command('CWID?', 'CWID',
                          Enum('off', 'narrow', 'wide', 'spot'))
     self.vertical_division = Command('CDIV?', 'CDIV', Enum(8, 10, None))
     self.control_mode = Command('CLNK?', 'CLNK',
                                 Enum('linked', 'separate'))
     self.readout_mode = Command('CDSP?', 'CDSP',
                                 Enum('delay', 'bin', 'fsweep', 'time'))
     self.bin = Command('CBIN?', 'CBIN', Integer)
Exemplo n.º 4
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 def __init__(self, transport, protocol):
     super(Heater, self).__init__(transport, protocol)
     self.manual_output = Command('MOUT?', 'MOUT', Float)
     self.output = Command(('HTR?', Float))
     self.range = Command(
         'HTRRNG?',
         'HTRRNG',
         Enum('off', '31.6 uA', '100 uA', '316 uA', '1 mA',
              '3.16 mA', '10 mA', '31.6 mA', '100 mA')
     )
     self.status = Command(
         ('HTRST?', Enum('no error', 'heater open error'))
     )
Exemplo n.º 5
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 def __init__(self, transport, protocol, id):
     super(BridgeChannel, self).__init__(transport, protocol)
     self.idx = id
     self.config = Command('BRIDGE? {}'.format(id), 'BRIDGE {} '.format(id),
                           [
                               Float(min=0.01, max=5000.),
                               Float(min=0.001, max=1000.),
                               Enum('AC', 'DC'),
                               Enum('standart', 'fast', 'high res')
                           ])
     bit = 2 * (id + 1)
     self.current = Command(('GETDAT? {}'.format(2**bit), Float))
     self.resistance = Command(('GETDAT? {}'.format(2**(bit + 1)), Float))
Exemplo n.º 6
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 def __init__(self, transport, protocol, idx):
     super(Relay, self).__init__(transport, protocol)
     idx = int(idx)
     self.config = Command(
         'RELAY? {0}'.format(idx),
         'RELAY {0},'.format(idx),
         [
             Enum('off', 'on', 'alarm', 'zone'),
             Enum('scan', *range(1, 17)),
             Enum('low', 'high', 'both')
         ]
     )
     self.status = Command(('RELAYST? {0}'.format(idx), Boolean))
Exemplo n.º 7
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 def __init__(self, connection, channel):
     super(Output, self).__init__(connection)
     if not channel in (1, 2):
         raise ValueError('Invalid Channel number. Valid are either 1 or 2')
     self.channel = channel
     self.analog = Command('ANALOG? {0}'.format(channel),
                           'ANALOG {0},'.format(channel),
                           [Boolean,
                            Enum('off', 'input', 'manual', 'loop'),
                            #INPUT,
                            Enum('kelvin', 'celsius', 'sensor', 'linear',
                                 start=1),
                            Float, Float, Float])
     self.value = Command(('AOUT? {0}'.format(channel), Float))
Exemplo n.º 8
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 def __init__(self, connection, idx, writeable, length=None):
     super(Curve, self).__init__(connection)
     self.idx = idx = int(idx)
     self.__length = length or 200
     # curves 1-20 are internal and not writeable.
     self._writeable = writeable
     self.header = Command('CRVHDR? {0}'.format(idx),
                           'CRVHDR {0},'.format(idx) if writeable else None,
                           [String(max=15),
                            String(max=10),
                            Enum('mV/K', 'V/K', 'Ohm/K',
                                 'logOhm/K', 'logOhm/logK', start=1),
                            Float(min=0.),
                            Enum('negative', 'positive', start=1)])
Exemplo n.º 9
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 def __init__(self, transport, protocol, channel):
     super(Output, self).__init__(transport, protocol)
     if not channel in (1, 2):
         raise ValueError('Invalid Channel number. Valid are either 1 or 2')
     self.channel = channel
     mode = 'off', 'channel', 'manual', 'zone'
     mode = mode + ('still',) if channel == 2 else mode
     self.analog = Command('ANALOG? {0}'.format(channel),
                           'ANALOG {0},'.format(channel),
                           [Enum('unipolar', 'bipolar'),
                            Enum(*mode),
                            Enum('kelvin', 'ohm', 'linear', start=1),
                            Float, Float, Float])
     self.value = Command(('AOUT? {0}'.format(channel), Float))
Exemplo n.º 10
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    def auto_offset(self, quantity):
        """Automatically offsets the given quantity.

        :param quantity: The quantity to offset, either 'x', 'y' or 'r'

        """
        self._write(('AOFF', Enum('x', 'y', 'r', start=1), quantity))
Exemplo n.º 11
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    def snap(self, *args):
        """Records multiple values at once.

        It takes two to six arguments specifying which values should be
        recorded together. Valid arguments are 'x', 'y', 'r', 'theta',
        'aux1', 'aux2', 'aux3', 'aux4', 'frequency', 'trace1', 'trace2',
        'trace3' and 'trace4'.

        snap is faster since it avoids communication overhead. 'x' and 'y'
        are recorded together, as well as 'r' and 'theta'. Between these
        pairs, there is a delay of approximately 10 us. 'aux1', 'aux2', 'aux3'
        and 'aux4' have am uncertainty of up to 32 us. It takes at least 40 ms
        or a period to calculate the frequency.

        E.g.::

            lockin.snap('x', 'theta', 'trace3')

        """
        length = len(args)
        if not 2 <= length <= 6:
            msg = 'snap takes 2 to 6 arguments, {0} given.'.format(length)
            raise TypeError(msg)
        # The program data type.
        param = Enum('x', 'y', 'r', 'theta', 'aux1', 'aux2', 'aux3', 'aux4',
                     'frequency', 'trace1', 'trace2', 'trace3', 'trace4')
        # construct command,
        cmd = 'SNAP?', (Float, ) * length, (param, ) * length
        return self._ask(cmd, *args)
Exemplo n.º 12
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    def auto_offset(self, signal):
        """Executes the auto offset command for the selected signal.

        :param i: Can either be 'X', 'Y' or 'R'.

        """
        self._write(('AOFF', Enum('X', 'Y', 'R', start=1)), signal)
Exemplo n.º 13
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 def __init__(self, transport, protocol, idx, length):
     super(Curve, self).__init__(transport, protocol)
     self.idx = idx = int(idx)
     self.header = Command(
         'CRVHDR? {0}'.format(idx),
         'CRVHDR {0},'.format(idx),
         [
             String(max=15),
             String(max=10),
             Enum('Ohm/K', 'logOhm/K', start=3),
             Float(min=0.),Enum('negative', 'positive', start=1)
         ]
     )
     if length > 0:
         self.__length = int(length)
     else:
         raise ValueError('length must be a positive integer > 0')
Exemplo n.º 14
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    def take_data_triggered(self, mode):
        """Starts triggered data acquisition.

        :param mode: If mode is 'curve', a trigger signal starts the
           acquisition of a complete curve or set of curves. If its 'point',
           only a single data point is stored.

        """
        self._write(('TDT', Enum('curve', 'point')), mode)
Exemplo n.º 15
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 def make_zone(i):
     """Helper function to create a zone command."""
     type_ = [
         Float, Float(min=0.001, max=1000.), Integer(min=0, max=10000),
         Integer(min=0, max=10000), Integer(min=0, max=100),
         Enum(*Heater.RANGE), Boolean, Boolean,
         Integer(min=-100, max=100),Integer(min=-100, max=100)
     ]
     return Command('ZONE? {0}'.format(i), 'ZONE {0},'.format(i), type_)
Exemplo n.º 16
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 def __init__(self, transport, protocol, idx):
     super(Display, self).__init__(transport, protocol)
     idx = int(idx)
     self.type = Command('DTYP? {0}'.format(idx), 'DTYP {0},'.format(idx),
                         Enum('polar', 'blank', 'bar', 'chart'))
     self.trace = Command('DTRC? {0}'.format(idx), 'DTRC {0},'.format(idx),
                          Integer(min=1, max=4))
     self.range = Command('DSCL? {0}'.format(idx), 'DSCL {0},'.format(idx),
                          Float(min=1e-18, max=1e18))
     self.offset = Command('DOFF? {0}'.format(idx), 'DOFF {0},'.format(idx),
                           Float(min=1e-12, max=1e12))
     self.horizontal_scale = Command(
         'DHZS? {0}'.format(idx), 'DHZS {0},'.format(idx),
         Enum('2 ms', '5 ms', '10 ms', '20 ms', '50 ms', '0.1 s', '0.2 s',
              '0.5 s', '1 s', '2 s', '5 s', '10 s', '20 s', '50 s', '1 min',
              '100 s', '2 min', '200 s', '5 min', '500 s', '10 min', '1 ks',
              '20 min', '2 ks', '1 h', '10 ks', '3 h', '20 ks', '50 ks',
              '100 ks', '200 ks'))
     self.bin = Command(('RBIN ? {0}'.format(idx), Integer))
     self.cursor = Command(('CURS? {0}'.format(idx), (Float, Float)))
Exemplo n.º 17
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 def __init__(self, transport, protocol, location):
     super(Display, self).__init__(transport, protocol)
     location = int(location)
     self.config = Command(
         'DISPLOC? {0}'.format(location),
         'DISPLOC {0},'.format(location),
         [
             Integer(min=0, max=16),
             Enum('kelvin', 'ohm', 'linear', 'min', 'max', start=1),
             Integer(min=4, max=6)
         ]
     )
Exemplo n.º 18
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 def __init__(self, transport, protocol, idx):
     super(Output, self).__init__(transport, protocol)
     idx = int(idx)
     self.mode = Command('AUXM? {0}'.format(idx), 'AUXM {0},'.format(idx),
                         Enum('fixed', 'log', 'linear'))
     self.voltage = Command('AUXV? {0}'.format(idx),
                            'AUXV {0},'.format(idx),
                            Float(min=-10.5, max=10.5))
     self.limits = Command(
         'SAUX? {0}'.format(idx), 'SAUX {0},'.format(idx),
         (Float(min=1e-3, max=21), Float(
             min=1e-3, max=21), Float(min=-10.5, max=10.5)))
Exemplo n.º 19
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    def __init__(self, transport, protocol, idx):
        super(Trace, self).__init__(transport, protocol)
        self.idx = idx = int(idx)
        self.value = Command(('OUTR? {0}'.format(idx), Float))

        quantities = Enum('1', 'x', 'y', 'r', 'theta', 'xn', 'yn', 'rn', 'Al1',
                          'Al2', 'Al3', 'Al4', 'F', 'x**2', 'y**2', 'r**2',
                          'theta**2', 'xn**2', 'yn**2', 'rn**2', 'Al1**2',
                          'Al2**2', 'Al3**2', 'Al4**2', 'F**2')
        self.definition = Command(
            'TRCD? {0}'.format(idx), 'TRCD {0},'.format(idx),
            (quantities, quantities, quantities, Boolean))
Exemplo n.º 20
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    def __init__(self, transport, max_field=None):
        # The PPMS uses whitespaces to separate data and semicolon to terminate
        # a message.
        protocol = slave.protocol.IEC60488(msg_data_sep=',',
                                           msg_term=';',
                                           resp_data_sep=',',
                                           resp_term=';')
        super(PPMS, self).__init__(transport, protocol)
        self.advisory_number = Command(('ADVNUM?', Integer(min=0, max=999)))
        self.chamber = Command(
            'CHAMBER?', 'CHAMBER',
            Enum('seal', 'purge seal', 'vent seal', 'pump', 'vent'))
        self.sample_space_pressure = Command(('GETDAT? 524288', Float))
        self.move_config = Command(
            'MOVECFG?',
            'MOVECFG',
            (
                Enum('steps', 'degree', 'radian', 'mm', 'cm', 'mils', 'inch'),
                Float,  # Units per step
                Float  # The total range
            ))
        self.sample_position = Command(('GETDAT? 8', Float))
        self.magnet_config = Command('MAGCNF?', 'MAGCNF',
                                     [Float] * 5 + [Integer, Integer])
        if max_field is None:
            max_field = self.magnet_config[0]

        self.target_field = Command(
            'FIELD?', 'FIELD',
            (Float(min=-max_field, max=max_field,
                   fmt='{0:.2f}'), Float(min=10.5, max=196., fmt='{0:.1f}'),
             Enum('linear', 'no overshoot',
                  'oscillate'), Enum('persistent', 'driven')))
        # TODO Allow for the configuration of the ranges
        self.target_temperature = Command(
            'TEMP?', 'TEMP', (Float(min=1.9, max=350.), Float(
                min=0., max=20), Enum('fast', 'no overshoot')))
        self.digital_input = Command(
            ('DIGIN?', Register(STATUS_DIGITAL_INPUT)))
        cmds = [
            Command('DRVOUT? {}'.format(i), 'DRVOUT {} '.format(i),
                    [Float(min=0, max=1000.),
                     Float(min=0., max=20.)]) for i in range(1, 3)
        ]
        self.driver_output = CommandSequence(self._transport, self._protocol, [
            Command('DRVOUT? {}'.format(i), 'DRVOUT {} '.format(i),
                    [Float(min=0, max=1000.),
                     Float(min=0., max=20.)]) for i in range(1, 3)
        ])
        self.bridge = [
            BridgeChannel(self._transport, self._protocol, i)
            for i in range(1, 5)
        ]
        self.level = Command(
            ('LEVEL?', [Float, Enum('>1h', '<1h', 'continuous')]))
        self.revision = Command(('REV?', [String, String]))
Exemplo n.º 21
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    def levelmeter(self, rate):
        """Changes the measuring rate of the levelmeter.

        :param rate: Valid are 'on', 'off', 'continuous' and 'hourly'. 'on'
            turns on the level meter, takes a reading and turns itself off.
            In 'continuous' mode, the readings are constantly updated. If no
            reading is requested within 60 seconds, the levelmeter will be
            turned off. 'off' turns off hourly readings.

        .. note::
            It takes approximately 10 seconds until a measured level is
            available.

        """
        # TODO: Check what 'off' actually does. Manual says it just deactivates
        # hourly readings and opcode 0 should be used to deactivate.
        self._write(('LEVELON', Enum('on', 'continuous', 'hourly', 'off')),
                    rate)
Exemplo n.º 22
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    def smooth(self, window):
        """Smooths the active display's data trace within the time window of
        the active chart display.

        :param window: The smoothing window in points. Valid are 5, 11, 17, 21
            and 25.

        .. note::

            Smoothing takes some time. Check the status byte to see when the
            operation is done. A running scan will be paused until the
            smoothing is complete.

        .. warning::

            The SR850 will generate an error if the active display trace is not
            stored when the smooth command is executed.

        """
        self._write(('SMTH', Enum(5, 11, 17, 21, 25)), window)
Exemplo n.º 23
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 def __init__(self, transport, protocol, idx):
     super(Input, self).__init__(transport, protocol)
     self.idx = idx = int(idx)
     self.average = Command(
         'MEAS:AVER? {0}'.format(idx),
         'MEAS:AVER {0},'.format(idx),
         Integer(min=1, max=250)
     )
     self.polarity = Command(
         'MEAS:POL? {0}'.format(idx),
         'MEAS:POL {0},'.format(idx),
         Enum('unipolar', 'bipolar', start=1)
     )
     # Due to a bug in the isc4807 firmware, a query returns 10.0001 instead
     # of 10. This leads to problems when a Set type is used as query and
     # write type.
     self.range = Command(
         ('MEAS:RANG? {0}'.format(idx), Integer),
         ('MEAS:RANG {0},'.format(idx), Set(5, 10))
     )
     self.voltage = Command(('MEAS:VOLT? {0}'.format(idx), Float))
Exemplo n.º 24
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    def __init__(self, transport):
        stb = {
            0: 'SCN',
            1: 'IFC',
            2: 'ERR',
            3: 'LIA',
            4: 'MAV',
            5: 'ESB',
            6: 'SRQ',
            7: '7'
        }
        esb = {
            0: 'INP',
            1: '1',
            2: 'QRY',
            3: '3',
            4: 'EXE',
            5: 'CMD',
            6: 'URQ',
            7: 'PON',
        }
        err = {
            0: 'print/plot error',
            1: 'backup error',
            2: 'ram error',
            3: 'disk error',
            4: 'rom error',
            5: 'gpib error',
            6: 'dsp error',
        }
        super(SR850, self).__init__(transport, stb=stb, esb=esb)
        # Status Reporting Commands
        self.lia_status = Command(('LIAS?', Register(self.LIA_BYTE)))
        self.lia_status_enable = Command('LIAE?', 'LIAE',
                                         Register(self.LIA_BYTE))
        # Reference and Phase Commands
        self.phase = Command('PHAS?', 'PHAS', Float(min=-360., max=719.999))
        self.reference_mode = Command('FMOD?', 'FMOD',
                                      Enum('internal', 'sweep', 'external'))
        self.frequency = Command('FREQ?', 'FREQ', Float(min=0.001, max=102000))
        self.frequency_sweep = Command('SWPT?', 'SWPT', Enum('linear', 'log'))
        self.start_frequency = Command('SLLM?', 'SLLM',
                                       Float(min=0.001, max=102000))
        self.stop_frequency = Command('SULM?', 'SULM',
                                      Float(min=0.001, max=102000))
        self.reference_slope = Command('RSLP?', 'RSLP',
                                       Enum('sine', 'rising', 'falling'))
        self.harmonic = Command('HARM?', 'HARM', Integer(min=1, max=32767))
        self.amplitude = Command('SLVL?', 'SLVL', Float(min=0.002, max=5.0))
        # Input and Filter Commands
        self.input = Command('ISRC?', 'ISRC', Enum('A', 'A-B', 'I'))
        self.input_gain = Command('IGAN?', 'IGAN', Enum('1 MOhm', '100 MOhm'))
        self.ground = Command('IGND?', 'IGND', Enum('float', 'ground'))
        self.coupling = Command('ICPL?', 'ICPL', Enum('AC', 'DC'))
        self.filter = Command('ILIN?', 'ILIN',
                              Enum('unfiltered', 'notch', '2xnotch', 'both'))
        # Gain and Timeconstant Commands
        self.sensitivity = Command(
            'SENS?', 'SENS',
            Enum(2e-9, 5e-9, 10e-9, 20e-9, 50e-9, 100e-9, 200e-9, 500e-9, 1e-6,
                 2e-6, 5e-6, 10e-6, 20e-6, 50e-6, 100e-6, 200e-6, 500e-6, 1e-3,
                 2e-3, 5e-3, 10e-3, 20e-3, 50e-3, 100e-3, 200e-3, 500e-3, 1))
        self.reserve_mode = Command('RMOD?', 'RMOD',
                                    Enum('max', 'manual', 'min'))
        self.reserve = Command('RSRV?', 'RSRV', Integer(min=0, max=5))
        self.time_constant = Command(
            'OFLT?', 'OFLT',
            Enum(10e-6, 30e-6, 100e-6, 300e-6, 1e-3, 3e-3, 10e-3, 30e-3,
                 100e-3, 300e-3, 1., 3., 10, 30, 100, 300, 1e3, 3e3, 10e3,
                 30e3))
        self.filter_slope = Command('OFSL?', 'OFSL', Enum(6, 12, 18, 24))
        self.syncronous_filtering = Command('SYNC?', 'SYNC', Boolean)
        # Output and Offset Commands
        self.ch1_display = Command(
            'FOUT? 1', 'FOUT 1,',
            Enum('x', 'r', 'theta', 'trace1', 'trace2', 'trace3', 'trace4'))
        self.ch2_display = Command(
            'FOUT? 2', 'FOUT 2,',
            Enum('y', 'r', 'theta', 'trace1', 'trace2', 'trace3', 'trace4'))
        self.x_offset_and_expand = Command(
            'OEXP? 1', 'OEXP 1,',
            (Float(min=-105., max=105.), Integer(min=1, max=256)))
        self.y_offset_and_expand = Command(
            'OEXP? 2', 'OEXP 2,',
            (Float(min=-105., max=105.), Integer(min=1, max=256)))
        self.r_offset_and_expand = Command(
            'OEXP? 3', 'OEXP 3,',
            (Float(min=-105., max=105.), Integer(min=1, max=256)))
        # Trace and Scan Commands
        self.traces = [
            Trace(transport, self._protocol, i) for i in range(1, 5)
        ]
        self.scan_sample_rate = Command(
            'SRAT?', 'SRAT',
            Enum(62.5e-3, 125e-3, 250e-3, 500e-3, 1, 2, 4, 8, 16, 32, 64, 128,
                 256, 512, 'trigger'))
        self.scan_length = Command('SLEN?', 'SLEN', Float(min=1))
        self.scan_mode = Command('SEND?', 'SEND', Enum('shot', 'loop'))
        # Display and Scale Commands
        # XXX Not shure about the difference between ADSP and ATRC command.
        self.active_display = Command('ADSP?', 'ADSP',
                                      Enum('full', 'top', 'bottom'))
        self.selected_display = Command('ATRC?', 'ATRC', Enum('top', 'bottom'))
        self.screen_format = Command('SMOD?', 'SMOD', Enum('single', 'dual'))
        self.monitor_display = Command('MNTR?', 'MNTR',
                                       Enum('settings', 'input/output'))
        self.full_display = Display(transport, self._protocol, 0)
        self.top_display = Display(transport, self._protocol, 1)
        self.bottom_display = Display(transport, self._protocol, 2)
        # Cursor Commands
        self.cursor = Cursor(transport, self._protocol)
        # Mark Commands
        self.marks = MarkList(transport, self._protocol)

        # Aux Input and Output Comnmands
        def aux_in(i):
            """Helper function to create an aux input command."""
            return Command(query=('OAUX? {0}'.format(i), Float))

        self.aux_input = CommandSequence(self._transport, self._protocol,
                                         (aux_in(i) for i in range(1, 5)))
        self.aux_output = tuple(
            Output(transport, self._protocol, i) for i in range(1, 5))
        self.start_on_trigger = Command('TSTR?', 'TSTR', Boolean)
        # Math Commands
        self.math_argument_type = Command('CAGT?', 'CAGT',
                                          Enum('trace', 'constant'))
        self.math_operation = Command(
            'COPR?', 'COPR',
            Enum('+', '-', '*', '/', 'sin', 'cos', 'tan', 'sqrt', '^2', 'log',
                 '10^x'))
        self.math_constant = Command('CARG?', 'CARG', Float)
        self.math_trace_argument = Command('CTRC?', 'CTRC',
                                           Integer(min=1, max=4))
        self.fit_function = Command('FTYP?', 'FTYP',
                                    Enum('line', 'exp', 'gauss'))
        self.fit_params = FitParameters(transport, self._protocol)
        self.statistics = Statistics(transport, self._protocol)
        # Store and Recall File Commands
        # TODO The filename syntax is not validated yet.
        self.filename = Command('FNAM?', 'FNAM', String(max=12))

        # Setup Commands
        self.interface = Command('OUTX?', 'OUTX', Enum('rs232', 'gpib'))
        self.overwrite_remote = Command('OVRM?', 'OVRM', Boolean)
        self.key_click = Command('KCLK?', 'KCLK', Boolean)
        self.alarm = Command('ALRM?', 'ALRM', Boolean)
        # TODO wrapp datetime commands with higher level interface.
        self.hours = Command('THRS?', 'THRS', Integer(min=0, max=23))
        self.minutes = Command('TMIN?', 'TMIN', Integer(min=0, max=59))
        self.seconds = Command('TSEC?', 'TSEC', Integer(min=0, max=59))
        self.month = Command('DMTH?', 'DMTH', Integer(min=1, max=12))
        self.day = Command('DDAY?', 'DDAY', Integer(min=1, max=31))
        self.year = Command('DYRS?', 'DYRS', Integer(min=0, max=99))
        self.plotter_mode = Command('PLTM?', 'PLTM', Enum('rs232', 'gpib'))
        self.plotter_baud_rate = Command('PLTB?', 'PLTB',
                                         Enum(300, 1200, 2400, 4800, 9600))
        self.plotter_address = Command('PLTA?', 'PLTA', Integer(min=0, max=30))
        self.plotting_speed = Command('PLTS?', 'PLTS', Enum('fast', 'slow'))
        self.trace_pen_number = Command('PNTR?', 'PNTR', Integer(min=1, max=6))
        self.grid_pen_number = Command('PNGD?', 'PNGD', Integer(min=1, max=6))
        self.alphanumeric_pen_number = Command('PNAL?', 'PNAL',
                                               Integer(min=1, max=6))
        self.cursor_pen_number = Command('PNCR?', 'PNCR', Integer(min=1,
                                                                  max=6))
        self.printer = Command('PRNT?', 'PRNT', Enum('epson', 'hp', 'file'))
        # Front Panel Controls and Auto Functions.
        # TODO ATRC.

        # Data Transfer Commands
        self.x = Command(('OUTP? 1', Float))
        self.y = Command(('OUTP? 2', Float))
        self.r = Command(('OUTP? 3', Float))
        self.theta = Command(('OUTP? 4', Float))
        self.fast_mode = Command('FAST?', 'FAST', Enum('off', 'dos',
                                                       'windows'))
        # Interface Commands
        self.access = Command('LOCL?', 'LOCL',
                              Enum('local', 'remote', 'lockout'))
Exemplo n.º 25
0
    def __init__(self, transport, scanner=None):
        super(LS370, self).__init__(transport)
        self.baud = Command('BAUD?', 'BAUD', Enum(300, 1200, 9600))
        self.beeper = Command('BEEP?', 'BEEP', Boolean)
        self.brightness = Command('BRIGT?', 'BRIGT', Enum(25, 50, 75, 100))
        self.common_mode_reduction = Command('CMR?', 'CMR', Boolean)
        self.control_mode = Command(
            'CMODE?',
            'CMODE',
            Enum('closed', 'zone', 'open', 'off', start=1)
        )
        self.control_params = Command(
            'CSET?',
            'CSET',
            [Integer(min=0, max=16), Enum('unfiltered', 'filtered'),
             Enum('kelvin', 'ohm', start=1), Integer(min=0, max=255),
             Enum('current', 'power', start=1), Enum(*Heater.RANGE),
             Float(min=1., max=100000.)]
        )
        # TODO disable if 3716 scanner option is used.
        self.digital_output = Command(
            'DOUT?',
            'DOUT',
            Register({
                0: 'DO1',
                1: 'DO2',
                2: 'DO3',
                3: 'DO4',
                4: 'DO5'
            }),
        )
        self.displays = tuple(
            Display(transport, self._protocol, i) for i in range(1, 9)
        )
        self.display_locations = Command(
            'DISPLAY?',
            'DISPLAY',
            Integer(min=1, max=8)
        )
        self.frequency = Command(
            'FREQ?',
            'FREQ',
            Enum('9.8 Hz', '13.7 Hz', '16.2 Hz', start=1)
        )
        self.guard = Command('GUARD?', 'GUARD', Boolean)
        self.ieee = Command('IEEE?', 'IEEE',
                            [Enum('\r\n', '\n\r', '\n', None),
                             Boolean,
                             Integer(min=0, max=30)])
        # TODO only active if model scanner 3716 is installed.
        self.input_change = Command('CHGALL?', 'CHGALL', Enum('one', 'all'))
        self.mode = Command('MODE?', 'MODE',
                            Enum('local', 'remote', 'lockout', start=1))
        self.monitor = Command(
            'MONITOR?',
            'MONITOR',
            Enum('off', 'cs neg', 'cs pos', 'vad',
                 'vcm neg', 'vcm pos', 'vdif', 'vmix')
        )
        self.output = (
            Output(transport, self._protocol, 1),
            Output(transport, self._protocol, 2)
        )
        self.pid = Command(
            'PID?',
            'PID',
            [Float(min=1e-3, max=1e3), Float(min=0., max=1e4),
             Float(min=0, max=2.5e3)]
        )
        self.polarity = Command('CPOL?', 'CPOL', Enum('unipolar', 'bipolar'))
        self.ramp = Command(
            'RAMP?',
            'RAMP',
            [Boolean, Float(min=1e-3, max=10.)]
        )
        self.ramping = Command(('RAMPST?', Boolean))
        self.low_relay = Relay(transport, self._protocol, 1)
        self.high_relay = Relay(transport, self._protocol, 2)
        self.scanner = scanner
        self.setpoint = Command('SETP?', 'SETP', Float)
        self.still = Command('STILL?', 'STILL', Float)
        self.all_curves = Curve(transport, self._protocol, 0, 200)
        self.user_curve = tuple(
            Curve(transport, self._protocol, i, 200) for i in range(1, 21)
        )

        def make_zone(i):
            """Helper function to create a zone command."""
            type_ = [
                Float, Float(min=0.001, max=1000.), Integer(min=0, max=10000),
                Integer(min=0, max=10000), Integer(min=0, max=100),
                Enum(*Heater.RANGE), Boolean, Boolean,
                Integer(min=-100, max=100),Integer(min=-100, max=100)
            ]
            return Command('ZONE? {0}'.format(i), 'ZONE {0},'.format(i), type_)
        self.zones = CommandSequence(
            self._transport,
            self._protocol,
            (make_zone(i) for i in range(1, 11))
        )
Exemplo n.º 26
0
    def __init__(self, connection):
        cfg = {
             'program data separator': ',',
        }
        super(SR7225, self).__init__(connection, cfg=cfg)
        # Signal channel
        # ==============
        self.current_mode = Command('IMODE', 'IMODE',
                                    Enum('off', 'high bandwidth', 'low noise'))
        self.voltage_mode = Command(
            'VMODE',
            'VMODE',
            Enum('test', 'A', 'A-B', start=1)
        )
        self.fet = Command('FET', 'FET', Enum('bipolar', 'fet'))
        self.grounding = Command('FLOAT', 'FLOAT', Enum('ground', 'float'))
        self.coupling = Command('CP', 'CP', Enum('ac', 'dc'))
        volt_sens = Enum(
            '2 nV', '5 nV', '10 nV', '20 nV', '50 nV', '100 nV', '200 nV',
            '500 nV', '1 uV', '2 uV', '5 uV', '10 uV', '20 uV', '50 uV',
            '100 uV', '200 uV', '500 uV', '1 mV', '2 mV', '5 mV', '10 mV',
            '20 mV', '50 mV', '100 mV', '200 mV', '500 mV', '1 V',
            start=1
        )
        self._voltage_sensitivity = Command('SEN', 'SEN', volt_sens)
        highbw_sens = Enum(
            '2 fA', '5 fA', '10 fA', '20 fA', '50 fA', '100 fA', '200 fA',
            '500 fA', '1 pA', '2 pA', '5 pA', '10 pA', '20 pA', '50 pA',
            '100 pA', '200 pA', '500 pA', '1 nA', '2 nA', '5 nA', '10 nA',
            '20 nA', '50 nA', '100 nA', '200 nA', '500 nA', '1 uA',
            start=1
        )
        self._highbandwidth_sensitivity = Command('SEN', 'SEN', highbw_sens)
        lownoise_sens = Enum(
            '2 fA', '5 fA', '10 fA', '20 fA', '50 fA', '100 fA', '200 fA',
            '500 fA', '1 pA', '2 pA', '5 pA', '10 pA', '20 pA', '50 pA',
            '100 pA', '200 pA', '500 pA', '1 nA', '2 nA', '5 nA', '10 nA',
            start=7
        )
        self._lownoise_sensitivity = Command('SEN', 'SEN', lownoise_sens)
        self.ac_gain = Command('ACGAIN', 'ACGAIN',
                               Enum('0 dB', '10 dB', '20 dB', '30 dB', '40 dB',
                                    '50 dB', '60 dB', '70 db', '80 dB', '90 dB'
                                    ))
        self.auto_ac_gain = Command('AUTOMATIC', 'AUTOMATIC', Boolean)
        self.line_filter = Command('LF', 'LF',
                                   [Enum('off', 'notch', 'double', 'both'),
                                    Enum('60Hz', '50Hz')])
        self.sample_frequency = Command('SAMPLE', 'SAMPLE',
                                        Integer(min=0, max=2))

        # Reference Channel
        # =================
        self.reference = Command('IE', 'IE', Enum('internal', 'rear', 'front'))
        self.harmonic = Command('REFN', 'REFN', Integer(min=1, max=32))
        self.reference_phase = Command('REFP.', 'REFP.',
                                       Float(min=-360., max=360.))
        self.reference_frequency = Command(('FRQ.', Float))

        # Signal channel output filters
        # =============================
        self.slope = Command('SLOPE', 'SLOPE',
                             Enum('6dB', '12dB', '18dB', '24dB'))
        self.time_constant = Command('TC', 'TC', Enum(*self.TIME_CONSTANT))
        self.sync = Command('SYNC', 'SYNC', Boolean)

        # Signal Channel Output Amplifiers
        # ================================
        self.x_offset = Command('XOF', 'XOF', Boolean,
                                Integer(min=-30000, max=30000))
        self.y_offset = Command('YOF', 'YOF', Boolean,
                                Integer(min=-30000, max=30000))
        self.expand = Command('EX', 'EX',
                              Enum('off', 'x', 'y', 'both'))
        self.channel1_output = Command('CH 1', 'CH 1 ',
                                       Enum('x', 'y', 'r', 'phase1', 'phase2',
                                            'noise', 'ratio', 'log ratio'))
        self.channel2_output = Command('CH 2', 'CH 2 ',
                                       Enum('x', 'y', 'r', 'phase1', 'phase2',
                                            'noise', 'ratio', 'log ratio'))

        # Instrument Outputs
        # ==================
        self.x = Command('X.', type_=Float)
        self.y = Command('Y.', type_=Float)
        self.xy = Command('XY.', type_=[Float, Float])
        self.r = Command('MAG.', type_=Float)
        self.theta = Command('PHA.', type_=Float)
        self.r_theta = Command('MP.', type_=[Float, Float])
        self.ratio = Command('RT.', type_=Float)
        self.log_ratio = Command('LR.', type_=Float)
        self.noise = Command('NHZ.', type_=Float)
        self.noise_bandwidth = Command('ENBW.', type_=Float)
        self.noise_output = Command('NN.', type_=Float)
        self.star = Command('STAR', 'STAR',
                            Enum('x', 'y', 'r', 'theta',
                                 'adc1', 'xy', 'rtheta', 'adc12'))
        # Internal oscillator
        # ===================
        self.amplitude = Command('OA.', 'OA.', Float(min=0., max=5.))
        self.amplitude_start = Command('ASTART.', 'ASTART.',
                                       Float(min=0., max=5.))
        self.amplitude_stop = Command('ASTOP.', 'ASTOP.',
                                      Float(min=0., max=5.))
        self.amplitude_step = Command('ASTEP.', 'ASTEP.',
                                      Float(min=0., max=5.))
        self.sync_oscillator = Command('SYNCOSC', 'SYNCOSC', Boolean)
        self.frequency = Command('OF.', 'OF.', Float(min=0, max=1.2e5))
        self.frequency_start = Command('FSTART.', 'FSTART.',
                                       Float(min=0, max=1.2e5))
        self.frequency_stop = Command('FSTOP.', 'FSTOP.',
                                       Float(min=0, max=1.2e5))
        self.frequency_step = Command('FSTEP.', 'FSTEP.',
                                      [Float(min=0, max=1.2e5),
                                       Enum('log', 'linear')])
        self.sweep_rate = Command('SRATE.', 'SRATE.',
                                  Float(min=0.05, max=1000))
        # Auxiliary Outputs
        # ================
        self.dac1 = Command('DAC. 1', 'DAC. 1 ', Float(min=-12., max=12.))
        self.dac2 = Command('DAC. 2', 'DAC. 2 ', Float(min=-12., max=12.))
        self.output_port = Command('BYTE', 'BYTE', Integer(min=0, max=255))
        # Auxiliary Inputs
        # ================
        self.adc1 = Command('ADC. 1', type_=Float)
        self.adc2 = Command('ADC. 2', type_=Float)
        self.adc_trigger_mode = Command('TADC', type_=Integer(min=0, max=13))
        self.burst_time = Command('BURSTTPP', 'BURSTTPP',
                                  Integer(min=25, max=5000))
        # Output Data Curve Buffer
        # ========================
        cb = Register(dict((v, k) for k, v in self.CURVE_BUFFER.iteritems()))
        self.curve_buffer_settings = Command('CBD', 'CBD', cb)
        self.curve_buffer_length = Command('LEN', 'LEN', Integer(min=0))
        self.storage_intervall = Command('STR', 'STR', Integer(min=0, max=1e9))
        self.event_marker = Command('EVENT', 'EVENT',
                                    Integer(min=0, max=32767))
        status_byte = Register(
            dict((v, k) for k, v in self.STATUS_BYTE.iteritems())
        )
        self.measurement_status = Command(('M', [Enum('no activity',
                                                      'td running',
                                                      'tdc running',
                                                      'td halted',
                                                      'tdc halted'),
                                                 Integer,
                                                 status_byte,
                                                 Integer]))
        # Computer Interfaces
        # ===================
        rs = Register(dict((v, k) for k, v in self.RS232.iteritems()))
        self.rs232 = Command('RS', 'RS', [Enum(*self.BAUD_RATE), rs])
        self.gpib = Command('GP', 'GP',
                            [Integer(min=0, max=31),
                             Enum('CR', 'CR echo', 'CRLF', 'CRLF echo',
                                  'None', 'None echo')])
        self.delimiter = Command('DD', 'DD', Set(13, *range(31, 126)))
        self.status = Command('ST', type_=status_byte)
        overload_byte = {
            'ch1 output overload': 1,
            'ch2 output overload': 2,
            'y output overload': 3,
            'x output overload': 4,
            'input overload': 6,
            'reference unlock': 7,
        }
        self.overload_status = Command('N', type_=Register(overload_byte))
        self.status_enable = Command('MSK', 'MSK', status_byte)
        self.remote = Command('REMOTE', 'REMOTE', Boolean)
        # Instrument identification
        # =========================
        self.identification = Command('ID', type_=String)
        self.revision = Command('REV', type_=String)
        self.version = Command('VER', type_=String)
        # Frontpanel
        # ==========
        self.lights = Command('LTS', 'LTS', Boolean)
Exemplo n.º 27
0
 def __init__(self, transport, protocol, idx):
     super(InputChannel, self).__init__(transport, protocol)
     self.index = idx = int(idx)
     self.alarm = Command(
         'ALARM ? {0}'.format(idx),
         'ALARM {0},'.format(idx),
         [Boolean, Enum('kelvin', 'ohm', 'linear'),
          Float, Float, Float, Boolean]
     )
     self.alarm_status = Command(
         ('ALARMST? {0}'.format(idx), [Boolean, Boolean])
     )
     self.autoscan = Command(
         'SCAN? {0}'.format(idx),
         'SCAN {0},'.format(idx),
         Boolean
     )
     self.config = Command(
         'INSET? {0}'.format(idx),
         'INSET {0},'.format(idx),
         [
             Boolean, Integer(min=1, max=200),
             Integer(min=3, max=200),
             Enum('no curve', *range(20)),
             Enum('negative', 'positive', start=1)
         ]
     )
     self.excitation_power = Command(('RDGPWR? {0}'.format(idx), Float))
     self.filter = Command(
         'FILTER? {0}'.format(idx),
         'FILTER {0},'.format(idx),
         [Boolean, Integer(min=1, max=200), Integer(min=1, max=80)]
     )
     self.kelvin = Command(('RDGK? {0}'.format(idx), Float))
     self.linear = Command(('LDAT? {0}'.format(idx), Float))
     self.linear_equation = Command(
         'LINEAR? {0}'.format(idx),
         'LINEAR {0},'.format(idx),
         [
             Enum('slope-intercept', 'point-slope'),
             Float,  # m value
             Enum('kelvin', 'celsius', 'sensor units', start=1),
             Enum('value', '+sp1', '-sp1', '+sp2', '-sp2', start=1),
             Float,  # b value
         ]
     )
     self.minmax = Command(('MDAT? {0}'.format(idx), [Float, Float]))
     self.minmax_parameter = Command(
         'MNMX? {0}'.format(idx),
         'MNMX {0},'.format(idx),
         Enum('kelvin', 'ohm', 'linear'),
     )
     self.reading_status = Command((
         'RDGST? {0}'.format(idx),
         Register({
             0: 'cs overload',  # current source overload
             1: 'vcm overload',  # voltage common mode overload
             2: 'vmix overload',  # differential overload
             3: 'vdif overload',  # mixer overload
             4: 'range over',
             5: 'range under',
             6: 'temp over',
             7: 'temp under',
         })
     ))
     self.resistance = Command(('RDGR? {}'.format(idx), Float))
     self.resistance_range = Command(
         'RDGRNG? {0}'.format(idx),
         'RDGRNG {0},'.format(idx),
         [
             Enum('voltage', 'current'),
             Integer(min=1, max=22),
             Integer(min=1, max=22),
             Boolean,
             Boolean
         ]
     )
Exemplo n.º 28
0
 def __init__(self, connection):
     super(Heater, self).__init__(connection)
     self.output = Command(('HTR?', Float))
     self.range = Command('RANGE?', 'RANGE', Integer(min=0, max=5))
     self.status = Command(('HTRST?', Enum(*self.ERROR_STATUS)))
Exemplo n.º 29
0
    def __init__(self, connection, name):
        super(Input, self).__init__(connection)
        self.name = name = str(name)
        # The reading status register, used in linear_status, reading_status
        # and minmax_status.
        rds = Register(dict((v, k) for k, v in self.READING_STATUS.items()))

        self.alarm = Command('ALARM? {0}'.format(name),
                             'ALARM {0},'.format(name),
                             [Boolean,
                              Enum('kelvin', 'celsius', 'sensor', 'linear'),
                              Float, Float, Boolean, Boolean])
        self.alarm_status = Command(('ALARMST?', [Boolean, Boolean]))
        self.celsius = Command(('CRDG? {0}'.format(name), Float))
        self.filter = Command('FILTER? {0}'.format(name),
                              'FILTER {0},'.format(name),
                              [Boolean, Integer(min=0),
                               Integer(min=0, max=100)])
        self.set = Command('INSET? {0}'.format(name),
                           'INSET {0},'.format(name),
                           [Boolean, Enum('off', 'on', 'pause')])
        self.curve = Command('INCRV? {0}'.format(name),
                             'INCRV {0},'.format(name),
                             Integer(min=0, max=60))
        self.input_type = Command('INTYPE? {0}'.format(name),
                                  'INTYPE {0},'.format(name),
                                  [Enum('special', 'Si', 'GaAlAs',
                                        'Pt100 250 Ohm', 'Pt100 500 Ohm',
                                        'Pt1000', 'RhFe', 'Carbon-Glass',
                                        'Cernox', 'RuOx', 'Ge', 'Capacitor',
                                        'Thermocouple'),
                                   Enum('special', 'volt', 'ohm'),
                                   Enum('special', '-', '+'),
                                   # XXX Volt and Ampere?
                                   Enum('off', '30nA', '100nA', '300nA', '1uA',
                                        '3uA', '10uA', '30uA', '100uA',
                                        '300uA', '1mA', '10mV', '1mV'),
                                   Enum('1mV', '2.5mV', '5mV', '10mV', '25mV',
                                        '50mV', '100mV', '250mV', '500mV',
                                        '1V', '2.5V', '5V', '7.5V', start=1)])
        self.kelvin = Command(('KRDG? {0}'.format(name), Float))
        self.sensor_units = Command(('SRDG? {0}'.format(name), Float))
        self.linear = Command(('LDAT? {0}'.format(name), Float))
        leq = [
            Enum('slope-intercept', 'point-slope'),
            Float,  # m value
            Enum('kelvin', 'celsius', 'sensor units', start=1),
            Enum('value', '+sp1', '-sp1', '+sp2', '-sp2', start=1),
            Float,  # b value
        ]
        self.linear_equation = Command('LINEAR? {0}'.format(name),
                                       'LINEAR {0},'.format(name), leq)
        self.linear_status = Command(('LDATST? {0}'.format(name), rds))
        self.reading_status = Command(('RDGST? {0}'.format(name), rds))
        self.minmax = Command(('MDAT? {0}'.format(name), [Float, Float]))
        self.minmax_parameter = Command('MNMX? {0}'.format(name),
                                        'MNMX {0},'.format(name),
                                        [Enum('on', 'pause'),
                                         Enum('kelvin', 'celsius',
                                              'sensor units', 'linear')])
        self.minmax_status = Command(('MDATST? {0}'.format(name), rds, rds))
Exemplo n.º 30
0
 def __init__(self, connection, scanner=None):
     super(LS340, self).__init__(connection)
     self.scanner = _get_scanner(connection, scanner) if scanner else None
     self.a = Input(connection, 'A')
     self.b = Input(connection, 'B')
     self.output1 = Output(connection, 1)
     self.output2 = Output(connection, 2)
     # Control Commands
     # ================
     self.loop1 = Loop(connection, 1)
     self.loop2 = Loop(connection, 2)
     self.heater = Heater(connection)
     # System Commands
     # ===============
     self.beeper = Command('BEEP?', 'BEEP', Boolean)
     self.beeping = Command(('BEEPST?', Integer))
     self.busy = Command(('BUSY?', Boolean))
     self.com = Command('COMM?', 'COMM',
                         [Enum('CRLF', 'LFCR', 'CR', 'LF', start=1),
                          Enum(300, 1200, 2400, 4800, 9600, 19200, start=1),
                          Set(1, 2, 3)])
     self.datetime = Command('DATETIME?', 'DATETIME',
                             [Integer(min=1, max=12),
                              Integer(min=1, max=31),
                              Integer,
                              Integer(min=0, max=23),
                              Integer(min=0, max=59),
                              Integer(min=0, max=59),
                              Integer(min=0, max=999)])
     dispfld = [
         String,
         Enum('kelvin', 'celsius', 'sensor units', 'linear', 'min', 'max'),
     ]
     for i in range(1, 9):
         cmd = Command('DISPFLD? {0}'.format(i),
                       'DISPFLD {0},'.format(i),
                       dispfld)
         setattr(self, 'display_field{0}'.format(i), cmd)
     self.mode = Command('MODE?', 'MODE',
                         Enum('local', 'remote', 'lockout', start=1))
     self.key_status = Command(('KEYST?',
                                Enum('no key pressed', 'key pressed')))
     self.high_relay = Command('RELAY? 1', 'RELAY 1',
                               [Enum('off', 'alarms', 'manual'),
                                Boolean])
     self.low_relay = Command('RELAY? 2', 'RELAY 2',
                               [Enum('off', 'alarms', 'manual'),
                                Boolean])
     self.high_relay_status = Command(('RELAYST? 1', Enum('off', 'on')))
     self.low_relay_status = Command(('RELAYST? 2', Enum('off', 'on')))
     self.revision = Command(('REV?', [Integer for _ in range(9)]))
     self.lock = Command('LOCK?', 'LOCK',
                         [Boolean, Integer(min=0, max=999)])
     self.ieee = Command('IEEE?', 'IEEE',
                         [Enum(None, '\r\n', '\n\r', '\r', '\n'),
                          Boolean,
                          Integer(min=0, max=30)])
     dout = [
         Enum('off', 'alarms', 'scanner', 'manual'),
         Register({'DO1': 0, 'DO2': 1, 'DO3': 2, 'DO4': 3, 'DO5': 4})
     ]
     self.digital_output_param = Command('DOUT?', 'DOUT',
                                         dout)
     diost = [
         Register({'DI1': 0, 'DI2': 1, 'DI3': 2, 'DI4': 3, 'DI5': 4}),
         Register({'DO1': 0, 'DO2': 1, 'DO3': 2, 'DO4': 3, 'DO5': 4}),
     ]
     self.digital_io_status = Command(('DIOST?', diost))
     xscan = [
         Enum('off', 'manual', 'autoscan', 'slave'),
         Integer(min=1, max=16),
         Integer(min=0, max=999)
     ]
     self.scanner_parameters = Command('XSCAN?', 'XSCAN', xscan)
     # Curve Commands
     # ==============
     self.std_curve = tuple(
         Curve(connection, i, writeable=False) for i in range(1, 21)
     )
     self.user_curve = tuple(
         Curve(connection, i, writeable=True) for i in range(21, 61)
     )
     # Data Logging Commands
     # =====================
     self.logging = Command('LOG?', 'LOG', Boolean)
     logset_query_t = [
         Enum('invalid', 'readings', 'seconds', start=0),
         Integer(min=0, max=3600),
         Boolean,
         Enum('clear', 'continue')
     ]
     logset_write_t = [
         Enum('readings', 'seconds', start=1),
         Integer(min=1, max=3600),
         Boolean,
         Enum('clear', 'continue')
     ]
     self.logging_params = Command(('LOGSET?', logset_query_t),
                                   ('LOGSET', logset_write_t))
     self.program_status = Command(('PGMRUN?',
                                    [Integer, Enum(*self.PROGRAM_STATUS)]))
     self.programs = tuple(Program(connection, i) for i in range(1, 11))
     for i in range(1, 5):
         setattr(self, 'column{0}'.format(i), Column(connection, i))