Command GetStepAmplitude :

Gets step amplitude for open-loop movements.
Value range: 1 - 65535
65535 corresponds to 100V

GetStepAmplitude Definition
Input Argument	Tango::DEV_ULONG	axis number
Output Argument	Tango::DEV_LONG	currently set step amplitude
DisplayLevel	OPERATOR	..
Inherited	false	..
Abstract	false	..
Polling Period	Not polled	..
Command NOT allowed for	FAULT OFF	..