Read Drive Signal Status

NI-Motion VI

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Read Drive Signal Status

Returns the status of the drive signal when an active signal is detected.

Device Compatibility

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

Board ID is a unique number assigned by MAX used to send and receive commands and data to or from a specific NI motion controller.

Axis is the axis to configure.

Ret Vect is the destination for the return data.

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.

Drive Signal Status contains the status of the drive signals, where bit0 = In-Position and bit1 = Drive Fault.

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

Resource Out is the Axis, Vector Space, ADC, or Encoder you wired into the VI. Use Resource Out to pass the resource to another VI and/or to display information about the device.

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 read the status of the drive signal when an active drive signal is detected. If In-Position is active, bit 0 = True. If Drive Fault is active, bit1 = True.

Tip Use Read Motion I/O Data instead of this VI for more options.

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