OverwriteData

Overwrites data points from index StartIndex to StartIndex + NumberOfPoints - 1 and recalculates the modified cam table segments. The first valid index is 1.
Returns 0 on success or a non-zero error code.

Syntax

Definition:

METHOD OverwriteData : UDINT
VAR_INPUT
    SourceAddress  : Pointer To  MotionFunctionPoint;
    NumberOfPoints : UDINT;
    StartIndex     : UDINT;
END_VAR

Inputs

Name	Type	Description
SourceAddress	Pointer To MotionFunctionPoint	Pointer to the new data points to write.
NumberOfPoints	UDINT	Number of points to overwrite.
StartIndex	UDINT	Index of the first point to overwrite.

Return value

UDINT

Further information

The property allows writing or overwriting a defined data range of the cam plate.

Notice

Property damage due to modifying an active cam plate coupling

This method can also be called while a cam plate is active. Valid changes are applied synchronously to the cam plate and may result in setpoint jumps. To switch cam plates at a specific time or position, the following steps are recommended:

Create a copy of the active cam plate (using the CopyFrom() method).
Make the changes to the copy (using the OverwriteData() method).
Switch between the cam plates (MC_CamExchange).

Possible error codes

For this function block, the following values, among others, are possible for the ErrorId output:

Error(Hex)	Error(Dec)	Error type	Description
0x8120	33056	Environment	Invalid configuration for object (e.g., in TwinCAT 3 Engineering (XAE)). The static configuration of the object (parameters, init values, linked symbols) is incomplete or invalid, so the object cannot reach the target state.
0x8198	33176	Parameter	Invalid index. The used index does not exist or is invalid.

An overview of all NC error codes can be found here:

Other errors