A-111
Appendices
CJ2 CPU Unit Hardware User’s Manual
A-4 Connecting to a Serial Port on the CPU Unit
App
A-4 Connecting to a Serial Port on the
CPU Unit
This appendix provides information on configurations and wiring methods when connecting various
functionality to a serial port on a CPU Unit.
With the following configurations, the serial port on a CJ2 CPU Unit can be used with an RS-232C or
RS-422A/485 interface. In this appendix, serial ports on CPU Units with these interfaces are called RS-
232C ports and RS-422A/485 ports.
z CPU Unit Built-in RS-232C Interface Specifications
• Connector Pin Arrangement
A-4-1 Serial Port Interface Types and Specifications
Interface
Model
RS-232C
RS-422A/485
Not isolated Isolated
CJ2H-CPU6@(-EIP) Built into the CPU Unit as
a standard feature.
A CJ1W-CIF11 RS-422A
Converter is mounted directly
to the built-in RS-232C inter-
face.
The built-in RS-232C inter-
face and an NT-AL001 RS-
232C/RS-422A Link Adapter
are connected with a cable.
CJ2M-CPU1@
CJ2M-CPU3@ A CP1W-CIF01 RS-232C
Option Board is mounted.
A CP1W-CIF11 RS-
422A/485 Option Board is
mounted.
A CP1W-CIF12 RS-
422A/485 Option Board is
mounted.
RS-232C Interface Specifications
Pin No. Signal Name Direction
1 FG Protection earth ---
2 SD (TXD) Send data Output
3 RD (RXD) Receive data Input
4 RS (RTS) Request to send Output
5 CS (CTS) Clear to send Input
6 5 V Power supply ---
7 DR (DSR) Data set ready Input
8 ER (DTR) Data terminal ready Output
9 SG (0 V) Signal ground ---
Connector hood FG Protection earth ---
5
1
9
6
To Next Page
Loading...
