OPERATION MANUAL CompoBus/S

CJ1W-SRM21 Master Unit for CJ-series PLCs Section 4-3
110
Screwless Terminals
FK-MCP1.5/6-STF-3.81
BS+
BDH
BDL
BS−
BS+
BS−
Communications Connector Pin Arrangement
24-VDC communications
power supply
CompoBus/S
communications
cable
Screw Terminals
MC1.5/6-STF-3.81
The BS+ and BS– terminals are internally connected.
The BS+ and BS– terminals are used to supply communications power supply
to the Slaves (they are not used for the Master Unit). When supplying communications
power at the Slave, such as by using 2-conductor VCTF cable, connect
the BD H and BD L terminals.
Note The signal wires for Special Flat Cable are shown in the following diagram.
Special Flat Cable can be easily connected to CJ-series Master Units
because the upper four pins of the communications connector have the same
pin arrangement (Special Flat Cable signal wires are connected in order, with
the communications power supply connected to the lower two pins.)
Communications Cable Crimp Terminals
The following table shows the recommended crimp terminals for the signal
wires connected to the communications connector. Use either of the following
cable crimp terminals.
BS+
BDH
BDL
BS−
BS+
BS−
Model Manufacturer
AI-series AI0.75-8GY Phoenix Contact
(product code 3200519)
H0.75/14
Weidmuller Co., Ltd.
(product code 046290)
24-VDC communications
power supply
Insert the cable into the crimp terminal and crimp the end section.
CompoBus/S
communications
cable
Communications power supply + (BS+) Brown
Communications data high (BD H) Black
Communications data low (BD L) White
Communications power supply – (BS–) Blue
Sleeve
Crimp terminal Cable