MEIXmpAxisGear

MEIXmpAxisGear

Declaration

	typedef struct { long *Ptr; long Position; long Delta; MEIXmpRatio Ratio; } MEIXmpAxisGear;
	Required Header: xmp.h

Description

MEIXmpAxisGear is an internal controller firmware structure that contains configurations for specifying a master delta position input and ratio.

Warning: Axis gearing ONLY supports servo motor types. Stepper motor types are not supported. Do NOT command motion on the geared (slave) axis, as erratic motion may result.

*Ptr	Pointer to the master delta position input.
Position	For internal purposes only. Do not use.
Delta	For internal purposes only. Do not use.
MEIXmpRatio	An internal controller firmware structure that contains the ratio (A/B) configuration.

Sample Code

MPIAxisConfig   config;
MEIAxisConfig   meiConfig;
MEIXmpData      *firmware; /* pointer to XMP firmware */ 
void            *ptr;

/* Get pointer to XMP firmware */
returnValue =
  mpiControlMemory(control,
				  (void**)&firmware,
                  NULL);

returnValue = mpiAxisConfigGet(axis, &config, &meiConfig);

 
/* master axis = 2, actual feedback */
meiConfig.Gear.Ptr = &firmware->Motor[2].IO.Encoder[0].Delta;

/* ratio = 1/2 */ 
meiConfig.Gear.Ratio.A = 1;
meiConfig.Gear.Ratio.B = 2;


returnValue = mpiAxisConfigSet(axis, &config, &config2);