84 ● DT DMC-40x0 Command Reference
DT
FUNCTION: Delta Time
DESCRIPTION:
The DT command sets the time interval for Contour Mode. Sending the DT command once will
set the time interval for all contour data until a new DT command (or CDm=n) is sent.
ARGUMENTS: DT n where
n is an integer in the range 0 to 8.
n = 1 through 8 specifies the time interval of 2
n
samples.
n = -1 allows a pre-load of the contour buffer or to asynchrounsly pause the contour buffer. DT-1
during countor mode will pause the contour buffer (and commanded movement). A positive
DT will resume contour mode from paused position of buffer.
By default the sample period is 1 msec (set by the TM command); with n=1, the time interval
would be 2 msec
n = ? Returns the value for the time interval for contour mode.
USAGE: DEFAULTS:
While Moving Yes Default Value 1
In a Program Yes Default Format 1.0
Command Line Yes
Controller Usage
ALL CONTROLLERS
OPERAND USAGE:
_DT contains the value for the time interval for Contour Mode
RELATED COMMANDS:
CM Contour Mode
CD Contour Data
EXAMPLES:
DT 4 Specifies time interval to be 16 msec
DT 7 Specifies time interval to be 128 msec
#Cont0 ;'Define label #Cont0
CM ABCD ;'Specify Contour Mode
DT 4 ;'Specify time increment for contour
CD 200,350,-150,500 ;'
pecify incremental positions on A,B,C and C axes
'A-axis moves 200 counts B-axis moves 350 counts C-
'axis moves -150 counts C-axis moves 500 counts
CD 100,200,300,400 ;'New position data
CD 0,0,0,0=0
#Wait;JP#Wait,_CM<>511
;'End of Contour Buffer/Sequence
;'Wait until path is done
EN ;'End program
#Cont1 ;'Define label #Cont1
CM AB ;'Specify Contour Mode
DT -1 ;'Pause Contour Mode to allow pre-load of buffer
CD 100,200 ;'Countour Data pre-loaded in buffer
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