System Configuration Example - Omron CJ2 User Manual

System Configuration Example

The host computer or a Programming Device such as the CX-Programmer is connected via the built-in
serial communications port on the CPU Unit. In addition, up to 15 Serial Communications Units can be
connected to a single CPU Unit, making it possible to configure a flexible serial communications system
by connecting devices with RS-232C or RS-422/485 ports (such as PLCs from other manufacturers,
temperature controllers, bar code readers, ID systems, personal computers, board computers, and
components).
CX-Programmer
or host
computer
Peripheral Bus
(Toolbus)
Host Link slave
: Protocol
For details on the protocol modes that can be selected for each port, refer to 11-2-1 Overview of Serial
Communications in the CJ2 CPU Unit Software User's Manual (Cat. No. W473).
Additional Information
Use the Peripheral Bus to connect the CJ2 CPU Unit to the CX-Programmer via serial communi-
cations.
CJ2 CPU Unit Hardware User's Manual
PT
NT Link
Serial
Communications Units
CPU Unit
RS-232C
This is connected using the Serial Gateway. The Serial
Gateway is supported for Serial Communications Units
with unit version 1.2 or later.
2 Basic System Configuration and Devices
CompoWay/F master
Modbus master
Host Link master
RS-232C
Protocol macro
No protocol
General-purpose external device (e.g., such as a
PLC from other manufacturer, temperature
controller, or bar code reader)
Device supporting
CompoWay/F
Device supporting
Modbus
CPU Unit
Host Link slave
2-23
2