Overview Of Cj2 Cpu Units; Overview - Omron CJ2 CPU UNIT SOFTWARE User Manual

1 Overview

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Overview of CJ2 CPU Units

1-1-1 Overview
The SYSMAC CJ2-series CPU Units are multi-functional CPU Units that provide the following features.
Fast, with Large Memory Capacity
Basic performance is faster and memory capacity has been increased to provide ample capability
for machine control.
Built-in EtherNet/IP Port (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
The CJ2 CPU Units support the EtherNet/IP open network as a standard feature. Universal Ethernet
communications, such as data links between PLCs, message communications between PLCs, and
FTP transfers, are all possible from a peripheral device connection.
General-purpose Networks for Support Software Interface
Support Software and devices can be easily connected using commercially available cable to gen-
eral-purpose networks via USB and EtherNet/IP ports. (The EtherNet/IP port is provided only on the
CJ2H-CPU6@-EIP and CJ2M-CPU3@.)
Tag Access (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
CJ2 CPU Units have a tag name server to manage tag names and I/O addresses. This enables
access from external devices using tag names, without needing to know the I/O addresses.
Synchronous Unit Operation (CJ2H CPU Units with Unit Version 1.1 or Later)
The timing of processing performed by CPU Bus Units and Special I/O Units can be synchronized.
This minimizes fluctuations in timing from input and processing to outputs, making it easier to ensure
application performance.
Easier Programming
CJ2 CPU Units offer a highly readable programming environment, including features such as
addressing DM and EM Area bits, setting address offsets, and using array variables.
Improved Debugging
Online editing and data tracing have been improved, greatly increasing the efficiency of debugging.
Increased Pulse I/O Capacity (CJ2M CPU Unit with Unit Version 2.0 or Later)
With the CJ2M CPU Units, optional Pulse I/O Modules can be mounted to enable pulse I/O for up to
four axes.
More Serial Communications Ports (CJ2M-CPU3@ Only)
With the standard CJ2M CPU Unit (CJ2M-CPU3@), you can add an RS-232C or RS-422A/485
Option Board to the standard-feature EtherNet/IP port to increase the number of serial communica-
tions ports.
1-2 CJ2 CPU Unit Software User's Manual