Expanded System Configuration; Serial Communications - Omron CJ2 CPU UNIT User Manual

Cj2 cpu unit hardware
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2-2

Expanded System Configuration

This section describes the system configurations that can be connected by using the serial port that is
built into the CJ2 CPU Unit, along with Communications Units and other Configuration Units.
2-2-1

Serial Communications

This expanded system can be connected via the CJ2 CPU Unit's built-in serial communications port or
a Serial Communications Unit.
Various protocols, including Host Link and NT Link, can be used with the serial communications port. A
particular protocol can be supported by switching the mode of the serial communications port.
For details on the serial communications modes that are supported, refer to 11-2 Serial Communica-
tions in the CJ2 CPU Unit Software User's Manual (Cat. No. W473).
Note Protocol macros are supported only for Serial Communications Units.
Serial port (RS-232C)
Precautions for Correct Use
Precautions for Correct Use
A Serial Option Board is required to use a serial communications for the CJ2M-CPU3@.
Refer to Serial Option Boards on page 2-7 for information on Serial Option Boards.
CJ2 CPU Unit Hardware User's Manual
2 Basic System Configuration and Devices
15 Serial
Communications
Units max.
CPU Unit
SYSMAC
SCU41
SCU41
RUN
MS
RUN
CJ2H
ERC
SD1
RD1
TER1
ERR/ ALM
NS
RUN
ERC
SD1
RD1
TER1
CPU64-EIP
INH
COMM
PROGRAMMABLE
RDY
ERH
SD2
100M
RD2
RDY
PRPHL
ERH
SD2
RD2
CONTROLLER
10M
TERM
COMM
TERM
BKUP
OFF
ON
OFF
UNIT
ON
OPEN
NO.
UNIT
NO.
WIRE
2
4
WIRE
2
4
MCPWR
PORT1
BUSY
PORT1
(RS422
(RS422
/485)
/485)
PERIPH ERAL
PORT
PORT2
PORT2
Communications Port 2
SCU41
RUN
ERC
SD1
RD1
Communications Port 1
TER1
RDY
ERH
SD2
RD2
TERM
OFF
ON
UNIT
NO.
WIRE
2
4
PORT1
(RS422
/485)
PORT2
2
2-27

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