Omron CJ2M-CPU Series Connection Guide

7
．
Serial Communications Connection Procedure
17
7.3. PLC Setup
Set up PLC.
7.3.1. Hardware Settings
Set the hardware switches on Serial Communications Unit and connect the cables.
Precautions for Correct Use
Make sure that the power supply is OFF when you set up.
1
Make sure that PLC is powered
OFF.
*If it is ON, the settings
described in the following steps
and subsequent procedures
may not be applicable.
2
Check the positions of the
hardware switches and Port 1 by
referring to the figure on the
right.
3
Set Unit number switch to 0.
*The unit number is set to 0 as
the factory default setting.
4
Set Terminating resistance
ON/OFF switch to ON.
(Terminating resistance ON)
5
Set 2-wire or 4-wire switch to 2
(2-wire).
TERM (Terminating resistance ON/OFF switch)
OFF: Terminating resistance OFF
ON: Terminating resistance ON
WIRE (2-wire or 4-wire switch)
2:2-wire;4:4-wire

Omron CJ2M-CPU Series Specifications

General

Power Supply	24 VDC
Number of Instructions	Over 400 instructions
Model	CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15
Program Capacity	5K steps to 60K steps
I/O Capacity	Up to 2, 560 points
Communication Ports	Ethernet, USB, RS-232C
Execution Time	0.04 µs per basic instruction
Operating Temperature	0 to 55°C
Position Control	Supported
High-speed Counter	100 kHz max.
Pulse Output	100 kHz max.
Maximum Units	40 units
Storage Temperature	-20 to 75°C
Interrupt Inputs	Supported