niScope Cal Store Internal Reference

For the NI 5112, this VI allows you to store the measured internal reference voltage value.

The NI 5112 supports routing the internal reference to the front BNC connectors, using niScope Cal Route Internal Reference. You can measure the internal reference with a DMM to verify it is within specification, then call this VI to store the measured value in the EEPROM. Storing the internal reference allows you to track the drift of the internal reference over time. The reference value is stored for tracking purposes only, and is not used during digitizer operation. The reference value is stored in the EEPROM as a 32-bit floating point number.

This VI requires an instrument handle returned from niScope Cal Start. The reference value is not written to the EEPROM until niScope Cal End is called with action set to Store Calibration. If this VI is not called during an external calibration session, the internal reference value is set to zero in the EEPROM when niScope Cal End is called with the action set to Store Calibration. This ensures consistent calibration count, date, and internal reference values in the EEPROM.

	instrument handle identifies a particular instrument session.
	which reference specifies which reference to store, fetch, or route.
	internal reference is the value of the internal reference stored during the last external calibration.
	error in 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 (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a negative error code. If status is FALSE, code is 0 or a warning code. source identifies where an error occurred. The source string includes the name of the VI that produced the error, what inputs are in error, and how to eliminate the error.
	instrument handle out has the same value as the instrument handle.
	error in describes error conditions that occur before this VI or function runs. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a negative error code. If status is FALSE, code is 0 or a warning code. source identifies where an error occurred. The source string includes the name of the VI that produced the error, what inputs are in error, and how to eliminate the error.