Created Driver for old AWG520 with basic functions

AWG520/AWG520.ini

+# Instrument driver configuration file.
+
+[General settings]
+
+# The name is shown in all the configuration windows
+name: AWG520
+
+# The version string should be updated whenever changes are made to this config file
+version: 1.0
+
+# Name of folder containing the code defining a custom driver. Do not define this item
+# or leave it blank for any standard driver based on the built-in VISA interface.
+driver_path: 
+
+
+
+[Model and options]
+# The option section allow instruments with different options to use the same driver
+
+# Check instrument model id at startup (True or False). Default is False
+check_model: False
+
+
+
+# General VISA settings for the instrument.
+[VISA settings]
+
+# Enable or disable communication over the VISA protocol (True or False)
+# If False, the driver will not perform any operations (unless there is a custom driver).
+use_visa = True
+
+# Reset the interface (not the instrument) at startup (True or False).  Default is False
+reset: False
+
+# Time (in seconds) before the timing out while waiting for an instrument response. Default is 5
+timeout: 5
+
+# Query instrument errors (True or False).  If True, every command sent to the device will
+# be followed by an error query.  This is useful when testing new setups, but may degrade
+# performance by slowing down the instrument communication. 
+query_instr_errors: False 
+
+# Bit mask for checking status byte errors (default is 255, include all errors)
+# The bits signal the following errors:
+# 0: Operation
+# 1: Request control
+# 2: Query error
+# 3: Device error
+# 4: Execution error
+# 5: Command error
+# 6: User request
+# 7: Power on
+error_bit_mask: 255
+
+# SCPI string to be used when querying for instrument error messages
+error_cmd: :SYST:ERR?
+
+# Initialization commands are sent to the instrument when starting the driver
+# *RST will reset the device, *CLS clears the interface
+init: 
+
+# Final commands sent to the instrument when closing the driver
+final: 
+
+
+# Define quantities in sections. This list is a selection of allowed keywords,
+# see the manual for a full list of options
+#   datatype:      The datatype should be one of DOUBLE, BOOLEAN, COMBO,
+#                  STRING, COMPLEX, VECTOR, VECTOR_COMPLEX, PATH or BUTTON.
+#   unit:          Quantity unit
+#   set_cmd:       Command used to send data to the instrument. Put <*> where the value should appear.
+#   get_cmd:       Command used to get the data from the instrument. Default is set_cmd?
+#   def_value:     Default value
+#   low_lim:       Lowest allowable value.  Defaults to -INF
+#   high_lim:      Highest allowable values.  Defaults to +INF
+#   combo_def_1:   First option in a pull-down combo box. Only used when datatype=COMBO
+#   combo_def_2:   Second option in a pull-down combo box. Only used when datatype=COMBO
+#   ...
+#   combo_def_n:   nth option in a pull-down combo box. Only used when datatype=COMBO
+#   state_quant:   Quantity that determines this control's visibility
+#   state_value_1: Value of "state_quant" for which the control is visible
+#   state_value_2: Value of "state_quant" for which the control is visible
+#   ...
+#   state_value_n: Value of "state_quant" for which the control is visible
+#   permission:    Sets read/writability, options are BOTH, READ, WRITE or NONE. Default is BOTH 
+#   group:         Name of the group where the control belongs.
+#   section:       Name of the section where the control belongs.
+
+
+[Run]
+datatype: BUTTON
+tooltip: Set instrument to run mode
+set_cmd: AWGC:RUN
+show_in_measurement_dlg: True
+
+[Stop]
+datatype: BUTTON
+tooltip: Stop waveform output
+set_cmd: AWGC:STOP
+show_in_measurement_dlg: True
+
+[Sampling rate]
+datatype: DOUBLE
+unit: Hz
+def_value: 1E9
+low_lim: 50E3
+high_lim: 1E9
+set_cmd: :FREQ
+show_in_measurement_dlg: True
+
+[Reference]
+datatype: COMBO
+def_value: Internal
+combo_def_1: Internal
+combo_def_2: External
+cmd_def_1: INT
+cmd_def_2: EXT
+set_cmd: :ROSC:SOUR
+
+[Ch1 On/Off]
+datatype: BOOLEAN
+def_value: 0
+set_cmd: OUTP1:STAT
+
+[Ch2 On/Off]
+datatype: BOOLEAN
+def_value: 0
+set_cmd: OUTP2:STAT
+
+[FG On/Off]
+datatype: COMBO
+def_value: OFF
+combo_def_1: ON
+combo_def_2: OFF
+cmd_def_1: 1
+cmd_def_2: 0
+set_cmd: :AWGC:FG
+
+[FG - Frequency]
+datatype: DOUBLE
+unit: Hz
+low_lim: 1
+high_lim: 100E6
+set_cmd: :AWGC:FG:FREQ
+show_in_measurement_dlg: True
+
+
+[Ch1 - FG Waveform]
+label: Funktionsgenerator
+datatype: COMBO
+combo_def_1: Sinus
+combo_def_2: Triangle
+combo_def_3: Square
+combo_def_4: Ramp
+combo_def_5: Pulse
+combo_def_6: DC
+cmd_def_1: SIN
+cmd_def_2: TRI
+cmd_def_3: SQU
+cmd_def_4: RAMP
+cmd_def_5: PULS
+cmd_def_6: DC
+set_cmd: :AWGC:FG1:FUNC 
+group: Channel 1
+section: Channels 
+
+[Ch1 - FG Phase]
+label: FG Phase
+datatype: DOUBLE
+low_lim: -6.28319
+high_lim: 6.28319
+set_cmd: :AWGC:FG1:PHAS 
+group: Channel 1
+section: Channels 
+
+[Ch1 - FG Polarity]
+label: Funktionsgenerator
+datatype: COMBO
+combo_def_1: Positiv
+combo_def_2: Negativ
+cmd_def_1: POS
+cmd_def_2: NEG
+set_cmd: :AWGC:FG1:POL
+group: Channel 1
+section: Channels 
+
+[Ch1 - FG Duty Cycle]
+label: FG Duty Cycle
+datatype: DOUBLE
+low_lim: 0.1
+high_lim: 99.9
+set_cmd: :AWGC:FG1:PULS:DCYC
+group: Channel 1
+section: Channels 
+
+[Ch1 - FG Vpp]
+label: FG Peap to Peak Amplitude
+datatype: DOUBLE
+low_lim: 0.02
+high_lim: 2
+set_cmd: :AWGC:FG1:VOLT
+unit: V
+group: Channel 1
+section: Channels 
+
+[Ch1 - FG Offset]
+label: FG Offset
+datatype: DOUBLE
+low_lim: -1
+high_lim: 1
+set_cmd: :AWGC:FG1:VOLT:OFFS
+unit: V
+group: Channel 1
+section: Channels 
+
+
+[Ch2 - FG Waveform]
+label: Funktionsgenerator
+datatype: COMBO
+combo_def_1: Sinus
+combo_def_2: Triangle
+combo_def_3: Square
+combo_def_4: Ramp
+combo_def_5: Pulse
+combo_def_6: DC
+cmd_def_1: SIN
+cmd_def_2: TRI
+cmd_def_3: SQU
+cmd_def_4: RAMP
+cmd_def_5: PULS
+cmd_def_6: DC
+set_cmd: :AWGC:FG2:FUNC 
+group: Channel 2
+section: Channels 
+
+[Ch2 - FG Phase]
+label: FG Phase
+datatype: DOUBLE
+low_lim: -6.28319
+high_lim: 6.28319
+set_cmd: :AWGC:FG2:PHAS 
+group: Channel 2
+section: Channels 
+
+[Ch2 - FG Polarity]
+label: Funktionsgenerator
+datatype: COMBO
+combo_def_1: Positiv
+combo_def_2: Negativ
+cmd_def_1: POS
+cmd_def_2: NEG
+set_cmd: :AWGC:FG2:POL
+group: Channel 2
+section: Channels 
+
+[Ch2 - FG Duty Cycle]
+label: FG Duty Cycle
+datatype: DOUBLE
+low_lim: 0.1
+high_lim: 99.9
+set_cmd: :AWGC:FG2:PULS:DCYC
+group: Channel 2
+section: Channels 
+
+[Ch2 - FG Vpp]
+label: FG Peap to Peak Amplitude
+datatype: DOUBLE
+low_lim: 0.02
+high_lim: 2
+set_cmd: :AWGC:FG2:VOLT
+unit: V
+group: Channel 2
+section: Channels 
+
+[Ch2 - FG Offset]
+label: FG Offset
+datatype: DOUBLE
+low_lim: -1
+high_lim: 1
+set_cmd: :AWGC:FG2:VOLT:OFFS
+unit: V
+group: Channel 2
+section: Channels