KEYENCE BL-600 Series - Manual (Page 44)

Chapter 3 Connection and Installation
34
3
3.3.2 I/O Wiring
Trigger input
The trigger input is used to signal the BL-600 to start reading (start laser emission).
The trigger input is a non-voltage input (TTL input is also available with negative
logic).
■ Connection to a photoelectric sensor manufactured by KEYENCE
OK/NG output
The OK/NG output is used to display the comparison/verification result of the
preset data.
➮ See page 101.
When no preset data is registered, it can be used to display whether or not bar
codes are being read correctly. The output form is NPN open-collector.
■ Connection to a programmable logic controller (PLC) manufactured by
KEYENCE
GND
TIM
1
5
5 V DC
10 k Ω
4.7
k Ω
Internal circuit
BL-600
Contact or
solid-state
Circuit diagram
TIM
GND
+
1
5
BL-600 Photoelectric sensor
Brown (Red)
Black (White)
Blue (Black)
GND
OK/NG
4/6
5
Load
BL-600
10 k Ω
* Rated load: 24 V DC
(30 mA) max.
+
Internal circuit
Circuit diagram
OK/NG
GND
+
4/6
BL-600
5
0000
C
PLC