KEYENCE BL-180 - Manual (Page 92)

Power Supply BL-U1
86
Wiring the OK/NG
output Use this output to determine OK/NG status by comparing the readout data with
the preset data. It is NPN open-collector output.
Input/output circuit
diagram Input circuit Output circuit
1.5 RS-232C port pin assignment
COM OK NG
Load
Load
+
*Rated load: 30 V max. (100 mA)
TIM
2.4
K
Ω
3.3K Ω
Internal circuit
Load
OK/NG
COM +
Internal circuit
Pin No. Symbol Description
Signal
direction
1 Shield Shield ——
2 SD (TXD) Send data through RS-232C Output
3 RD (RXD) Receive data through RS-232C Input
4 RS(RTS)
Request to send data through RS-232C
(Always ON)
Output
5 CS(CTS) Enable to send to RS-232C Input
6 DR(DSR) Connect to pin 20 internally Input
7 GND(SG) Signal Ground ——
20 ER(DTR) Connect to pin 6 internally Output
13
25
1
14
D-sub 25-pin connector (female)
DTE specification (defined as terminal)
N 2.6 screw (female)