KEYENCE BL-600 Series - Manual (Page 29)

Chapter 3 Connection and Installation
19
3
Connecting trigger input
The trigger input allows the BL-600 Series to start reading bar codes (turn on the
laser beam).
The trigger input is turned ON when 8.5 to 30 V DC input is activated between the
trigger input terminals.
The BL-U1’s power supply terminals for the sensor can be used as the power
supply input for the sensor.
■ Connection to a photoelectric sensor manufactured by KEYENCE
Connecting the OK/NG output
The OK/NG output is used to differentiate between acceptable and unacceptable
results based on a comparison with preset data
( ➮ See pages 101.). It can also be
used to indicate whether or not the BL-600 Series successfully reads bar codes
when there is no preset data entered.
The OK/NG output is an NPN open-collector output.
■ Connection to a programmable logic controller (PLC) manufactured by
KEYENCE
TIM +12 V OUT–
8.5 to 30 V DC
+
+
Contact or
solid-state
+12 V OUT– TIM
Photoelectric sensor
Brown (Red)
Black (White)
Blue (Black)
COM OK NG
Load
Load
+
*Rated load: 30 V DC max. (100 mA)
0001
0000
C
COM OK NG
+
PLC