KEYENCE DL-RB1A - Manual (Page 29)

27
3-1 Data Processing and Operation Modes
Ad
va
nc
ed
F
unc
tion
s
3
Operation Modes
There are three types of operations modes for DL-RB1A: OUT mode, OR mode, and TIMER mode.
Different ON/OFF combinations of the advanced setting switches can be used to toggle between the
operation modes. For more details, see to Advanced setting switches on (page 7) .
 OUT mode
This is an all-purpose mode that uses BCD output to output data from the sensor amplifier with the
selected ID No. when the DRQ input from the external device is switched.
Set the external device so that there is at least 2 ms before turning DRQ input on and after
turning DRQ input off.
 Time chart
(1) An external device inputs "ID No. 01" as the ID No. selection.
(2) After at least 2 ms have passed, an external device turns on the DRQ input.
(3) Within 2 ms of the DRQ input turning on, DL-RB1A updates the BCD output and turns on the
strobe output.
(4) The external device confirms that the strobe output is on and imports the BCD output.
(5) An external device turns off the DRQ input. (The strobe output turns off within 2 ms and the BCD
output is held until the DRQ input turns on again.)
Note
ID No.
selection input
(1) ID No. 01 selected ID No. 02 selected
DRQ input (2) ON OFF (5) OFF ON OFF
Strobe output (3) ON OFF OFF ON OFF
BCD output Data update Data update (Previous data) (4) ID No. 01 BCD data ID No. 02 BCD data
2 ms min. 2 ms min.
2 ms min. 2 ms min. 2 ms min.
2 ms max. 2 ms max.
2 ms max. 2 ms max.