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.
	ADC is the Analog-to-Digital Converter channel to read. Valid ADC resources are 0x51 (81) through 0x5F (95).
	Ret Vect indicates the destination for the return data generated by this VI. Available return vectors include return data to the host (0xFF), return data to a variable (0x01 through 0x78), return data to an indirect variable (0x81 through 0xF8), and do not return data (0). Refer to Input and Return Vectors for more detailed information.
	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.
	Analog Value is the signed 16-bit (7350) or 12-bit (all others) value from the ADC channel. The voltage range is set through the Set ADC Range VI. Range Values Analog Values 7350 7330/40 NI SoftMotion Controller for CANopen—Xenus 0 to 5 0 to +65,535 0 to +4,095 — –5 to +5 –32,768 to +32,767 –2,048 to +2,047 — 0 to +10 0 to +65,535 0 to +4,095 — –10 to +10 (default) –32,768 to +32,767 –2,048 to +2,047 –2,048 to +2,047
	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 Output is the Axis, Vector Space, ADC, or Encoder you wired into the VI. Use Resource Output 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

The Read ADC VI returns the converted voltage from any of the analog input channels. You can only read values from channels that have been either directly enabled by the Enable ADCs VI or automatically enabled by being mapped to an enabled axis.

For an ADC channel mapped to an axis, this VI returns the actual ADC value. In contrast, the Read Position VI executed on the owner axis returns an ADC value that has been offset by a reset value stored when the Reset Position VI was executed. ADC channels are never internally reset so their DC values are preserved.