Cj-Series Features; Special Features - Omron CJ - 08-2008 Operation Manual

CJ-series Features

1-2

CJ-series Features

1-2-1

Special Features

Improvements in Basic Performance
Only 30% to 35% of the
Volume of CS-series PLCs
Mount to DIN Track
Faster Instruction
Execution and Peripheral
Servicing
Ample Programming
Capacity
The CJ-series PLCs support the same task-based programming structure,
instructions, high-speed instruction execution, I/O memory, functionality, and
message communications as the CS-series PLCs. The main differences of
the CJ-series in comparison to the CS-series PLCs are as follows (refer to
page 67 for details):
• No Backplanes are required.
• Screw mounting is not supported (only DIN Track mounting).
• Smaller size (30% to 35% in terms of volume).
• Inner Boards are not supported.
• I/O interrupt tasks and external interrupt tasks are not supported by CJ1
CPU Units. (They are supported by CJ1-H CPU Units.)
• C200H Special I/O Units are not supported (e.g., SYSMAC BUS Remote
I/O Units).
• It is not necessary to create I/O tables unless desired, i.e., I/O tables can
be created automatically when power is turned ON.
• The startup mode when a Programming Console is not connected is RUN
mode (rather than PROGRAM mode, as it is for CS1 CPU Units).
• Only version 2.04 or higher versions of CX-Programmer can be con-
nected for CJ1 CPU Units, version 2.1 or higher for CJ1-H CPU Units,
and version 3.0 or higher for CJ1M CPU Units.
The CJ Series provides high speed, high capacity, and more functions in
micro-size PLCs.
At 90 x 65 mm (height x depth), the CJ-series Units have on 70% the height
and half the depth of CS-series Units, contributing to machine downsizing.
The CJ-series PLCs can be mounted to DIN Track along with power supplies
and other components when there is limited installation space in a machine
(e.g., limited space between top and bottom ducts).
Instructions CJ1-H-R
CPU Units
CJ1H-
CPU6@H-R
0.016 µs
Basic
0.048 µs
Special
0.24 µs
Floating-point
calculations
Processing for overhead, I/O refreshes, and peripheral servicing is also much
faster.
With up to 250 Ksteps of program capacity, 256 Kwords of DM Memory, and
2,560 I/O points, there is sufficient capacity for added-value programs includ-
ing machine interfaces, communications, data processing, etc.
CJ1-H CPU Units CJ1M CPU Units
CJ1H- CJ1H- CJ1M-CPU@@
CPU6@H CPU4@H
0.02 µs 0.04 µs 0.10 µs
0.06 µs 0.08 µs 0.40 µs
8.0 µs 9.2 µs CPU11/21: 15.7 µs
Other: 13.3 µs
Section 1-2
CJ1 CPU
Units
CJ1G-
CPU@
0.08 µs
0.29 µs
10.2 µs
3