KEYENCE DL-RB1A - Manual (Page 30)

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Ad
va
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F
unc
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3
3-1 Data Processing and Operation Modes
 OR mode
This mode is used when reading BCD output from multiple DL-RB1A units with one external device.
Set the external device so that there at least 2 ms before turning DRQ input on and after
turning DRQ input off.
 Sample wiring
When sending BCD output from two DL-RB1A units to one external device.
- Perform OR wiring from the two BCD outputs to the external device input.
- Perform OR wiring from the two strobe outputs to the external device input or wire each input
independently.
- Wire both of the DRQ inputs independently from the two outputs on the external device (OR
wiring cannot be performed with the DRQ).
Note
Inter
nal cir
cuit
6 to 32
33 or 34
IN
COM
Photocoupler insulation
DL-RB1A Input to PLC etc.
Over
curr
ent pr
otect cir
cuit
Inter
nal cir
cuit
6 to 32
33 or 34
DL-RB1A
Over
curr
ent pr
otect cir
cuit
A
B
Inter
nal cir
cuit