84 ● EP DMC-1400 Series Command Reference
EP FUNCTION: Cam table master interval and phase shift
DESCRIPTION:
The EP command defines the ECAM table master interval and phase shift. The interval m is
the difference in master position between table entries. The phase shift n instantaneously
moves the graph of slave position versus master position left (negative) or right (positive)
and is used to make on-the-fly corrections to the slaves. Up to 257 points may be
specified.
ARGUMENTS: EP m,n where
m is the master interval and is a positive integer in the range between 1 and 32,767 master
counts. m cannot be changed while ECAM is running.
M = ? Returns the value of the interval m.
n is the phase shift and is an integer between -2,147,483,648 and 2,147,483,647 master
counts. m can be changed while ECAM is running.
USAGE:
While Moving Yes Default Value 256,0
In a Program Yes Default Format
Command Line Yes
Can be Interrogated Yes
Used as an Operand Yes (m only)
Controller Usage ALL
OPERAND USAGE:
_EP contains the value of the interval m.
RELATED COMMANDS:
EB Enable Ecam
EG Engage Ecam
EM Specify Ecam Cycle
EQ Ecam quit
ET Electronic CAM table
EXAMPLES:
EP 20 Sets the cam master points to 0,20,40 . . .
D =_EP Set the variable D equal to the ECAM internal master interval
EP,100 Phase shift all slaves by 100 master counts