NI FGEN Calibration Functions - ni/grpc-device GitHub Wiki

Calibration Functions

niFgen_SelfCal

ViStatus niFgen_SelfCal (ViSession vi);

Purpose

Performs a full internal self-calibration on the device. If the calibration is successful, new calibration data and constants are stored in the onboard EEPROM.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitWithOptions functions and identifies a particular instrument session.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetSelfCalSupported

ViStatus niFgen_GetSelfCalSupported (ViSession vi, ViBoolean* selfCalSupported);

Purpose

Returns whether the device supports self–calibration.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitWithOptions function and identifies a particular instrument session.
Output
Name Type Description
selfCalSupported ViBoolean*

Returns whether the device supports self-calibration.

Defined Values

VI_TRUE Self–calibration is supported.
VI_FALSE Self–calibration is not supported.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetSelfCalLastDateAndTime

ViStatus niFgen_GetSelfCalLastDateAndTime  (ViSession vi, ViInt32* year, ViInt32* month, ViInt32* day, ViInt32* hour, ViInt32* minute);

Purpose

Returns the date and time of the last successful self-calibration.

All values are returned as separate parameters. Each parameter is returned as an integer, including the year, month, day, hour, minute, and second. For example, if the device is calibrated in September 2013, this function returns 9 for the month parameter and 2013 for the year parameter.

The time returned is 24-hour (military) local time. For example, if the device was calibrated at 2:30 PM, this function returns 14 for the hours parameter and 30 for the minutes parameter.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
year ViInt32* Specifies the year of the last successful calibration.
month ViInt32* Specifies the month of the last successful calibration.
day ViInt32* Specifies the day of the last successful calibration.
hour ViInt32* Specifies the hour of the last successful calibration.
minute ViInt32* Specifies the minute of the last successful calibration.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetExtCalLastDateAndTime

ViStatus niFgen_GetExtCalLastDateAndTime (ViSession vi, ViInt32* year, ViInt32* month, ViInt32* day, ViInt32* hour, ViInt32* minute);

Purpose

Returns the date and time of the last successful external calibration. The time returned is 24-hour (military) local time; for example, if the device was calibrated at 2:30 PM, this function returns 14 for the hour parameter and 30 for the minute parameter.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
year ViInt32* Specifies the year of the last successful calibration.
month ViInt32* Specifies the month of the last successful calibration.
day ViInt32* Specifies the day of the last successful calibration.
hour ViInt32* Specifies the hour of the last successful calibration.
minute ViInt32* Specifies the minute of the last successful calibration.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetSelfCalLastTemp

ViStatus niFgen_GetSelfCalLastTemp (ViSession vi, ViReal64* temperature);

Purpose

Returns the temperature at the last successful self-calibration. The temperature is returned in degrees Celsius.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
temperature ViReal64* Specifies the temperature at the last successful calibration in degrees Celsius.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetExtCalLastTemp

ViStatus niFgen_GetExtCalLastTemp (ViSession vi, ViReal64* temperature);

Purpose

Returns the temperature at the last successful external calibration. The temperature is returned in degrees Celsius.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
temperature ViReal64* Specifies the temperature at the last successful calibration in degrees Celsius.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetExtCalRecommendedInterval

ViStatus niFgen_GetExtCalRecommendedInterval (ViSession vi, ViInt32* months);

Purpose

Returns the recommended interval between external calibrations in months.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
months ViInt32* Specifies the recommended interval between external calibrations in months.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_ChangeExtCalPassword

ViStatus niFgen_ChangeExtCalPassword (ViSession vi, ViConstString oldPassword, ViConstString newPassword);

Purpose

Changes the password that is required to initialize an external calibration session. The password may be up to four characters long.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
oldPassword ViConstString Specifies the old (current) external calibration password.
newPassword ViConstString Specifies the new (desired) external calibration password. The password may be up to four characters long.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_SetCalUserDefinedInfo

ViStatus niFgen_SetCalUserDefinedInfo (ViSession vi, ViConstString info);

Purpose

Stores user-defined information in the onboard EEPROM. Call the niFgen_GetCalUserDefinedInfoMaxSize function to determine the maximum number of characters that can be stored.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
info ViConstString Specifies the information string that should be stored in the EEPROM.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetCalUserDefinedInfo

ViStatus niFgen_GetCalUserDefinedInfo (ViSession vi, ViString info);

Purpose

Retrieves user-defined information from the onboard EEPROM. Call the niFgen_GetCalUserDefinedInfoMaxSize function to determine the number of characters that can be retrieved. The buffer you provide should be the size of the maximum number of characters stored plus one termination character.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
info ViString Specifies a string into which the user information is copied. This parameter must point to a character buffer large enough to hold the information string.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_GetCalUserDefinedInfoMaxSize

ViStatus niFgen_GetCalUserDefinedInfoMaxSize (ViSession vi, ViInt32* infoSize);

Purpose

Returns the maximum number of characters, excluding the termination character, of user-defined information that can be stored in the onboard EEPROM.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
infoSize ViInt32* Specifies the maximum number of characters of user defined info that can be stored in the onboard EEPROM.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_ReadCurrentTemperature

ViStatus niFgen_ReadCurrentTemperature (ViSession vi, ViReal64* temperature);

Purpose

Reads the current onboard temperature of the device. The temperature is returned in degrees Celsius.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_init or the niFgen_InitExtCal function and identifies a particular instrument session.
Output
Name Type Description
Temperature ViReal64* Returns the current temperature read from onboard temperature sensors, in degrees Celsius.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

niFgen_RestoreLastExtCalConstants

ViStatus niFgen_RestoreLastExtCalConstants (ViSession vi);

Purpose

Overwrites the current calibration constants with those from the last successful external calibration. This action effectively undoes any self-calibrations performed since the last time an external calibration was performed. This function should be used if a self-calibration produced invalid calibration constants.

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niFgen_InitExtCal function and identifies a particular instrument session.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. You can examine the status code from each call to an NI-FGEN function to determine if an error occurred. To obtain a text description of the status code, call the niFgen_error_message function. To obtain additional information about the error condition, call the niFgen_GetError function. To clear the error information from NI-FGEN, call the niFgen_ClearError function.

The general meaning of the status code is as follows:
Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors
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