Enable Camming

NI-Motion VI

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Enable Camming

Enables camming operation for multiple axes.

Device Compatibility

Device	Compatibility
7330	N
7340	N
7344	N
7350	N
7390	N
NI SoftMotion Controller for CANopen—Accelnet	Y
NI SoftMotion Controller for CANopen—Xenus	Y

Enable Data is an array of clusters that include the following elements:

	Axis is the axis you want to start or stop camming operation on.
	Enable indicates if the camming is started (True) or stopped (False) on the selected Axis.
	Position is the position to start or stop the camming at. The valid range is –1 or 0 through (master cycle – 1).

Board ID is a unique number assigned by Measurement & Automation Explorer (MAX) used to send and receive commands and data to or from a specific NI motion controller.

error in (no error) describes error conditions that occur before this VI runs. The default input of this cluster is no error. If an error already occurred, this VI returns the value of error in in error out. The VI runs normally only if no incoming error exists. Otherwise, the VI passes the error in value to error out. The error in cluster contains the following parameters:

	status is TRUE if an error occurred before this VI was called, or FALSE if not. If status is TRUE, code is a nonzero error code. If status is FALSE, code is zero or a warning code.
	code is a number identifying an error or warning. If status is TRUE, code is a nonzero error code. If status is FALSE, code is zero or a warning code. Use the error handler VIs to look up the meaning of this code and display the corresponding error message.
	source is a string that indicates the origin of the error, if any. Typically, source is the name of the VI in which the error occurred.

Board ID Out is provided for flow control. You can string together NI-Motion VIs by wiring the Board ID Out terminal of one VI to the Board ID terminal of the next VI.

error out contains error information. If error in indicates an error, error out contains the same error information. Otherwise, it describes the error status that this VI produces.

	status is TRUE if an error occurred, or FALSE if not. If status is TRUE, code is a nonzero error code. If status is FALSE, code is zero or a warning code.
	code is a number identifying an error or warning. If status is TRUE, code is a nonzero error code. If status is FALSE, code is zero or a warning code. Use the error handler VIs to look up the meaning of this code and display the corresponding error message.
	source is a string that indicates the origin of the error, if any. Typically, source is the name of the VI in which the error occurred.

Using This VI

Use this VI to simultaneously start or stop a camming operation on multiple axes. The default value for the Position element of the Enable Data array is –1, which starts camming immediately. To start camming at a specific master position, set this parameter to a value between 0 and (master cycle – 1).

Refer to the Camming section of the NI-Motion Help for more information about camming operations.

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