Purpose

Executes the UDS InputOutputControlByIdentifier service. Modifies ECU I/O port behavior.

Format 

        long ndUDSInputOutputControlByIdentifier(
       TD1 *diagRef,
       unsigned short ID,
       unsigned char mode,
       unsigned char dataIn[],
       long len,
       unsigned char dataOut[],
       long *len2,
       LVBoolean *success);

Input

diagRef

Specifies the diagnostic session handle, obtained from ndOpenDiagnosticOnCANFD or ndOpenDiagnosticOnIPStack and passed to subsequent diagnostic functions. Normally, it is not necessary to manually manipulate the elements of this struct.

ID

Defines the identifier of the I/O to be manipulated. The values are application specific.

mode

Defines the I/O control type. The values are application specific. The usual values are:

0: ReturnControlToECU

1: ResetToDefault

2: FreezeCurrentState

3: ShortTermAdjustment

dataIn

Defines application-specific data for this service.

len

Must contain the number of valid data bytes in dataIn. Output

dataOut

Returns application-specific data for this service.

len2

On input, len2 must contain the dataOut array length. On return, it contains the number of valid data bytes in the dataOut array.

success

Indicates successful receipt of a positive response message for this diagnostic service.

Return Value

The return value indicates the function call status as a signed 32-bit integer. Zero means the function executed successfully. A negative value specifies an error, which means the function did not perform the expected behavior. A positive value specifies a warning, which means the function performed as expected, but a condition arose that may require attention.

Use the ndStatusToString function to obtain a descriptive string for the return value.

Description

This function substitutes a value for an input signal or internal ECU function. It also controls an output (actuator) of an electronic system referenced by the ID parameter.

For further details about this service, refer to the ISO 15765-3 standard.