Galil Motion Control optcom Page 76
Optima DMC-1xxx and DMC-18x2 Command Reference
DR
i
65
DR
FUNCTION: Configures Secondary Communication channel and the data update rate.
DESCRIPTION:
DR +/- specifies the secondary communication channel as DMA if positive and polling
FIFO/DPRAM if negative. n specifies the data update rate as 2
n
samples between
updates. The controller creates a record and places it in the FIFO, PC DMA, or DPRAM
location at this rate.
ARGUMENTS: DR + n or DR - n
+ DMA (DMC-1700 only)
- Polling FIFO or DPRAM where
n is an integer in the range 0 to 8. 0 turns off the secondary communication channel. n=1
through 8 specifies data update rate of 2n sample periods. The sample period is specified
by the TM command and has a default value of 1000 (1msec).
Note: If a small sample period and a small update rate is used, the controller may become
noticeably slower as a result of maintaining a high update rate.
USAGE: DEFAULTS:
While Moving
Yes
Default Value
0
In a Program
No
Default Format
--
Command Line
Yes
Controller Usage
EXCEPT FOR DMC-1200 AND DMC-18x2
RELATED COMMANDS:
"QZ"
Sets format of data
