poolbasechannel

This module is part of the Python Pool library. It defines the base classes for experiment channels

Classes

PoolBaseChannel

PoolBaseChannel

class PoolBaseChannel(**kwargs)

Bases: sardana.pool.poolelement.PoolElement

ValueAttributeClass

alias of Value

AcquisitionClass

alias of PoolCTAcquisition

get_value_attribute()

Returns the value attribute object for this experiment channel

Returns:the value attribute Return type:SardanaAttribute

on_change(evt_src, evt_type, evt_value)

get_default_attribute()

get_acquisition()

acquisition

acquisition object

read_value()

Reads the channel value from hardware.

Returns:a SardanaValue containing the channel value Return type:SardanaValue

put_value(value, propagate=1)

Sets a value.

Parameters:

• value (SardanaValue) – the new value
• propagate (int) – 0 for not propagating, 1 to propagate, 2 propagate with priority

get_value(cache=True, propagate=1)

Returns the channel value.

Parameters:

• cache (bool) – if True (default) return value in cache, otherwise read value from hardware
• propagate (int) – 0 for not propagating, 1 to propagate, 2 propagate with priority

Returns:

the channel value

Return type:

SardanaAttribute

set_value(value)

Starts an acquisition on this channel

Parameters:value (Number) – the value to count

value

channel value

start_acquisition(value=None)