Omron CJ - 08-2008 - Comparison to CS-Series Plcs

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Comparison to CS-series PLCs Section 1-10
1-10 Comparison to CS-series PLCs
The CS-series and CJ-series PLCs use the same architecture and are basi-
cally the same in terms of program structure (tasks), instruction system, I/O
memory, and other functionality. They do differ, however in that the CJ-series
PLCs have a different Unit structure, support different Units, do not support
Inner Boards, have different Expansion Racks, have a different I/O allocation
method, etc. These differences are outlined in the following table.
Item CJ-series CS-series
CJ1-H-R CPU Unit
(High-speed)
CJ1-H CPU Unit CS1-H CPU Unit
Dimensions: Height × width 90 × 65 mm 130 × 123 mm
Unit connections Connected to each other via connectors without Back-
plane. End Cover connected to right end to indicate
end of Rack.
Mounted to Backplanes.
Maximum I/O capacity 2,560 I/O points 5,120 I/O points
Maximum program capacity Same
Maximum data memory (DM and
EM Areas combined)
Same
Instructions system Same
I/O memory Same
PLC Setup Same
Cyclic task functionality Same
Interrupt tasks Same (Power OFF interrupt task, schedule interrupt tasks, I/O interrupt, and exter-
nal interrupt tasks)
Programming Devices CX-Programmer (versions 2.1 or higher) (See note 1.) and Programming Consoles
Instruction
execution time
Basic instructions 0.016 µs min. 0.02 µs min.
Special instruc-
tions
0.048 µs min 0.06 µs min.
Overhead time Normal mode: 0.13 ms Normal mode: 0.3 ms
Parallel processing mode:
0.28 ms
Parallel processing mode: 0.3 ms
Mounting DIN Track (not mountable with screws) DIN Track or screws
Inner Boards Not supported. Supported.
Special I/O Units and CPU Bus
Units
Structure of allocations is the same.
Special I/O Units: 96 Units max. (restrictions on mounting positions)
CPU Bus Units: 16 Units max.
CPU Rack mounting positions 10 Units max. (11 Units or more will cause an error) 3, 5, 8, or 10 slots
Expansion Rack mounting positions 10 Units max. (11 Units or more will cause an error) 2, 3, 5, 8, or 10 slots
Expansion Racks One I/O Control Unit required on CPU Rack and one
I/O Interface Unit required on each Expansion Rack.
Either C200H or CS-series
Expansion Racks can be
connected without an I/O
Control Unit or I/O Inter-
face Units.
Maximum number of Expansion
Racks
3 7
Maximum total cable length to
Expansion Racks
12 m
Maximum number of Units 40 80
SYSMAC BUS Remote I/O Not supported. Supported.
File Memory (Memory Cards or EM
Area)
Same
Trace Memory Same