T&C Power Conversion AG Series Plasma Generator CXN
- class pymeasure.instruments.tcpowerconversion.CXN(adapter, name='T&C RF sputtering power supply', address=0, **kwargs)
Bases:
InstrumentT&C Power Conversion AG Series Plasma Generator CXN (also rebranded by AJA International Inc as 0113 GTC or 0313 GTC)
Connection to the device is made through an RS232 serial connection. The communication settings are fixed in the device at 38400, stopbit one, parity none. The device uses a command response system where every receipt of a command is acknowledged by returning a ‘*’. A ‘?’ is returned to indicates the command was not recognized by the device.
A command messages always consists of the following bytes (B): 1B - header (always ‘C’), 1B - address (ignored), 2B - command id, 2B - parameter 1, 2B - parameter, 2B - checksum
A response message always consists of: 1B - header (always ‘R’), 1B - address of the device, 2B - length of the data package, variable length data, 2B - checksum response messages are received after the acknowledge byte.
- Parameters
adapter – pyvisa resource name of the instrument or adapter instance
name (string) – Name of the instrument.
kwargs – Any valid key-word argument for Instrument
Note
In order to enable setting any parameters one has to request control and periodically (at least once per 2s) poll any value from the device. Failure to do so will mean loss of control and the device will reset certain parameters (setpoint, disable RF, …). If no value should be polled but control should remain active one can also use the ping method.
- preset_1
- Channel
- preset_2
- Channel
- preset_3
- Channel
- preset_4
- Channel
- preset_5
- Channel
- preset_6
- Channel
- preset_7
- Channel
- preset_8
- Channel
- preset_9
- Channel
- class Status(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)
Bases:
IntFlagIntFlag type used to represent the CXN status.
The used bits correspond to: bit 14: Analog interface enabled, bit 11: Interlock open, bit 10: Over temperature, bit 9: Reverse power limit, bit 8: Forward power limit, bit 6: MCG mode active, bit 5: load power leveling active, bit 4, External RF source active, bit 0: RF power on.
- property dc_voltage
Get the DC voltage in volts.
- property firmware_version
Get the UI-processor and RF-processor firmware version numbers.
- property frequency
Get operating frequency in Hz.
- property id
Get the device identification string.
- property load_capacity
Control the percentage of full-scale value of the load capacity. It can be set only when manual_mode is True.
- property manual_mode
Control the manual tuner mode.
- property operation_mode
Control the operation mode.
- ping()
Send a ping to the instrument.
- property power
Get power readings for forward/reverse/load power in watts.
- property power_limit
Get maximum power of the power supply.
- property preset_slot
Control which preset slot will be used for auto-tune mode. Valid values are 0 to 9. 0 means no preset will be used
- property pulse_params
Get pulse on/off time of the pulse waveform.
- property ramp_rate
Control the ramp rate in watts/second.
- property ramp_start_power
Control the ramp starting power in watts.
- read()
Reads a response message from the instrument.
This method determines the length of the message from the automatically by reading the message header and also checks for a correct checksum.
- Returns
the data fields
- Return type
bytes
- Raises
ValueError – if a checksum error is detected
- release_control()
Release instrument control.
This will reset certain properties to safe defaults and disable the RF output.
- request_control()
Request control of the instrument.
This is required to be able to set any properties.
- property reverse_power_limit
Get maximum reverse power.
- property rf_enabled
Control the RF output.
- property serial
Get the serial number of the instrument.
- property setpoint
Control the setpoint power level in watts.
- property status
Get status field. The return value is represented by the IntFlag type Status.
- property temperature
Get heat sink temperature in deg Celsius.
- property tune_capacity
Control the percentage of full-scale value of the tune capacity. It can be set only when manual_mode is True.
- property tuner
Get type of the used tuner.
- values(command, cast=<class 'int'>, separator=', ', preprocess_reply=None, **kwargs)
Write a command to the instrument and return a list of formatted values from the result.
This is derived from CommonBase.values and adapted here for use with bytes communication messages (no str conversion and strip). It is implemented as a general method to allow using it equally in PresetChannel and CXN. See Github issue #784 for details.
- Parameters
command – SCPI command to be sent to the instrument
separator – A separator character to split the string into a list
cast – A type to cast the result
preprocess_reply – optional callable used to preprocess values received from the instrument. The callable returns the processed string.
- Returns
A list of the desired type, or strings where the casting fails
- write(command)
Writes a command to the instrument and includes needed required header and address.
- Parameters
command (str) – command to be sent to the instrument
- class pymeasure.instruments.tcpowerconversion.tccxn.PresetChannel(parent, id)
Bases:
Channel- property load_capacity
Control the percentage of full-scale value of the load capacity preset.
- property tune_capacity
Control the percentage of full-scale value of the tune capacity preset.
- values(command, cast=<class 'int'>, separator=', ', preprocess_reply=None, **kwargs)
Write a command to the instrument and return a list of formatted values from the result.
This is derived from CommonBase.values and adapted here for use with bytes communication messages (no str conversion and strip). It is implemented as a general method to allow using it equally in PresetChannel and CXN. See Github issue #784 for details.
- Parameters
command – SCPI command to be sent to the instrument
separator – A separator character to split the string into a list
cast – A type to cast the result
preprocess_reply – optional callable used to preprocess values received from the instrument. The callable returns the processed string.
- Returns
A list of the desired type, or strings where the casting fails