14-3
14 Serial Communications
CP2E CPU Unit Software User’s Manual(W614)
14-1 Serial Communications
14
14-1-1 Types of CPU Units and Serial Ports
14-1 Serial Communications
Serial communications can be used with any model of CP2E CPU Unit.
z E/Sîš…îš…-type CPU Unit
E14/20/30/40/60 CPU Units have only one built-in RS-232C port. There are no option slots.
S30/40/60 CPU Units have one built-in RS-232C port and one built-in RS-485 port. There are no
option slots.
z Nîš…îš…-type CPU Unit
N14/20 CPU Units have only one option slot.
N30/40/60 CPU Units have two option slots.
RS-232C or RS-422A/485 Option Boards can be mounted for serial communications.
Installation Example
14-1-1 Types of CPU Units and Serial Ports
Serial Ports
Built-in RS-232C Port
E14/20 CPU Unit
Built-in RS-485 Port
(S30/40/60 CPU Unit only)
Built-in RS-232C Port
E30/40/60, S30/40/60 CPU Unit
Serial Port 1
  When CP1W-CIF01/CIF11/CIF12-V1,
  CP2W-CIFD Option Board is mounted.
Serial Port 1 (EX)
  Only when CP2W-CIFD Option Board
  with 2 ports is mounted.
N14/20 CPU Unit
Serial Port 2
When CP1W-CIF01/CIF11/CIF12-V1 Option Board is mounted.
* Option Board with 2 ports cannot be used.
N30/40/60 CPU Unit
Serial Port 1
  When CP1W-CIF01/CIF11/CIF12-V1, CP2W-CIFD Option Board is mounted.
Serial Port 1 (EX)
  Only when CP2W-CIFD Option Board with 2 ports is mounted.
Serial Port 1
Option Slot 1 Option Slot 2
Serial Port 1 (EX)
Option Board with 2 ports
CP2W-CIFD
RS-422A/485 Option Board
CP1W-CIF12-V1
Serial Port 2
CP2W-CIFD Serial Option Board with two ports
can be mounted to option slot 1, so two ports can
be controlled by one slot, and a total of three-port
serial communications is possible together with
option slot 2.