InputLoadCurrentSink Property (DioFileBoard)

Applies To

GX5055

Purpose

Sets or returns the channel input sink load currents.

Syntax

Object.InputLoadCurrentSink (nChannel, dISink)

Or

[dISink = ]Object.InputLoadCurrentSink(nChannel)

 

The InputLoadCurrentSink property syntax has the following parts:

Name
Type
Description
Object
DioFileBoard
DioFileBoard object.
nChannel
SHORT
Specified channel in the DIO board, channel can be 0-31.
dISink
DOUBLE
Integer specifying the board type.
Input channel constant current sink value.
The input channel current sink force the specified constant current to be active when the input voltage is below the low voltage clamp value.
Input channel constant current sink value can be set from 0mA to 24mA with 0.3662 μA resolution.

Comments

Each channel has an independent load with the following capabilities:

1.    Channels’ Input constant source and sink currents up to 24 mA

2.    Maintain high impedance over a wide voltage.

3.    Separate high and low clamping (commutating) voltages – Channels’ Input Resistive load options

With independent high and low clamping (commutating) voltages, the source and sink currents each have their own threshold voltage. If the voltage on the input, when the load is activated, is between the two clamping voltages, the load will remain in a high impedance state.

 

See Also

InputLoadCurrentSource, InputLoadCurrentVoltageClampHigh, InputLoadCurrentVoltageClampLow,  InputLoadResistancePulldown, InputLoadResistancePullup, InputThresholdVoltageHigh, InputThresholdVoltageLow