devices.horst:HTMC11

Instrument class for the Horst HTMC11 bakeout controller.

Usage

Source

devices.horst:HTMC11(
    portname,
    slaveaddress,
    baudrate=115200,
    request_delay=0.02,
    write_delay=0.1,
    startup_delay=0.5,
)

connection is made via a RS485 serial line which uses the Modbus RTU protocol.

Attributes

Name Description
actual_output_ratio Get the actual output ratio.
current_setpoint Get the current setpoint.
cycle_time Get the cycle time.
derivative_time Get the derivative time.
heater_current Get the heater current.
integral_time Get the integral time.
manual_mode Get the manual mode.
manual_output_ratio Get the manual output ratio.
proportional_band Get the proportional band.
setpoint1 Get the first setpoint.
temperature Get the current temperature.
temperature2 Get the second temperature reading.

actual_output_ratio

Get the actual output ratio.

actual_output_ratio: int

current_setpoint

Get the current setpoint.

current_setpoint: int

cycle_time

Get the cycle time.

cycle_time: float

derivative_time

Get the derivative time.

derivative_time: int

heater_current

Get the heater current.

heater_current: float

integral_time

Get the integral time.

integral_time: int

manual_mode

Get the manual mode.

manual_mode: HorstManualMode

manual_output_ratio

Get the manual output ratio.

manual_output_ratio: int

proportional_band

Get the proportional band.

proportional_band: float

setpoint1

Get the first setpoint.

setpoint1: int

temperature

Get the current temperature.

temperature: float

temperature2

Get the second temperature reading.

temperature2: int

Methods

Name Description
__init__() Initialize Horst HTMC11 bakeout controller.
read_register() Read a register after observing the controller request delay.
write_register() Write to a Modbus register using functioncode 6.

__init__()

Initialize Horst HTMC11 bakeout controller.

Usage

Source

__init__(
    portname,
    slaveaddress,
    baudrate=115200,
    request_delay=0.02,
    write_delay=0.1,
    startup_delay=0.5,
)

Parameters

portname: str

Name of the serial port to connect to

slaveaddress: int

Modbus slave address of the device

baudrate: int = 115200

Serial communication speed in baud. Default is 115200

request_delay: float = 0.02

Minimum time in seconds between Modbus requests. Default is 0.02.

write_delay: float = 0.1

Minimum time in seconds between Modbus writes. Default is 0.1.

startup_delay: float = 0.5
Time in seconds to wait after opening the serial connection before the first register request. Default is 0.5.

read_register()

Read a register after observing the controller request delay.

Usage

Source

read_register(
    *args,
    **kwargs,
)

write_register()

Write to a Modbus register using functioncode 6.

Usage

Source

write_register(
    *args,
    **kwargs,
)

Parameters

*args: tuple

Variable length argument list passed to superclass

**kwargs: dict
Arbitrary keyword arguments passed to superclass

Returns

None