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DAQmx_CreateCountEdgesChannel


Header: ThirdPartySdk.h
Namespace: fil
Module: ThirdParty

Creates a task and channel to count number of edges.

Syntax

void fil::DAQmx_CreateCountEdgesChannel
(
	DAQmx_CreateCountEdgesChannelState& ioState,
	ftl::Optional<const ftl::String&> inDeviceID,
	const ftl::Optional<const ftl::String&> inCounter,
	fil::DAQmxActiveEdge::Type inActiveEdge,
	int inInitialCount,
	fil::DAQmxCountDirection::Type inCountDirection,
	fil::DAQmxTaskID& outTaskID
)

Parameters

Name Type Default Description
Input will be modified ioState DAQmx_CreateCountEdgesChannelState& Object used to maintain state of the function.
Input value inDeviceID Optional<const String&> NIL Device alias, product name or serial number
Input value inCounter const Optional<const String&> NIL Name of a counter used to create virtual channel
Input value inActiveEdge DAQmxActiveEdge::Type Active edge for counting
Input value inInitialCount int Initial value
Input value inCountDirection DAQmxCountDirection::Type Type of counting (incrementing and decrementing values)
Output value outTaskID DAQmxTaskID& ID of a created task

Remarks

Device driver software

This filter is intended to cooperate with digital I/O cards using its vendor driver software. To be able to connect to a card it is required to install NI-DAQmx driver software. Currently FabImage Studio requires NI-DAQmx version 25.0.

NI-DAQmx driver software can be downloaded from the following website: https://www.ni.com/pl-pl/support/downloads/drivers/download.ni-daq-mx.html#480879.

Device identification

When there is only one device connected to computer, inDeviceID field can be set to Auto. In this situation first available device will be found and connected.

inDeviceID can be used to pick one of multiple devices connected to computer. Set this field to Device alias (for example "Dev1"), product name or serial number. This parameters should be available in Measurement & Automation Explorer.

Multithreaded environment

This function is not guaranteed to be thread-safe. When used in multithreaded environment, it has to be manually synchronized.

See Also