plesty.lib.device.base_visa_scpi_device

Base VISA SCPI device implementation for Plesty.

Classes

BaseVisaScpiDevice

Base class for VISA SCPI devices providing connection and communication methods.

Module Contents

class plesty.lib.device.base_visa_scpi_device.BaseVisaScpiDevice(address: str, timeout: int = 5000, write_termination='\n', read_termination='\n', baud_rate: int | None = None, op_schema=None, param_schema=None)

Bases: plesty.lib.device.base_device_sync.BaseDeviceSyncModel

Base class for VISA SCPI devices providing connection and communication methods.

This class is designed to be extended by specific device classes that implement the details of the SCPI commands for each instrument.

Initialize with VISA address and communication parameters.

Parameters:

  • address (str)

  • timeout (int)

  • baud_rate (int | None)

address
timeout = 5000
write_termination = Multiline-String
Show Value
"""
"""
read_termination = Multiline-String
Show Value
"""
"""
baud_rate = None
traffic_manager: plesty.lib.traffic.visa.VisaTrafficManager | None = None
scpi_solver: plesty.lib.solver.scpi.SCPISolver | None = None
init(main=None) → None

Initialize the VISA traffic manager and SCPI solver.

Return type:

None

connect() → bool

Discover and open the VISA instrument connection.

Raises:

  • RuntimeError – If the address matches no connected instrument.

  • TimeoutError – If a wedged device on the bus stalls enumeration.

Return type:

bool

disconnect() → None

Close the VISA instrument connection.

Return type:

None

_write_(key: str, value: Any)

Send a SCPI write command to the instrument.

Parameters:

  • key (str)

  • value (Any)

_query_(key)

Send a SCPI query command and return the raw response.

query_range(key) → list

Query the minimum and maximum values for a parameter key.

Return type:

list

identity() → Any

Query the instrument identity string using *IDN?.

Return type:

Any

check_errors() → list[str]

Check the instrument error queue and return a list of error strings.

Return type:

list[str]

check_operatability() → bool

Return True if the instrument responds to *OPC? with '1'.

Return type:

bool