Introducing the new style of loop control, Down-sizing, Integrated loop control and sequence control – Omron Smart Process Control CJ-Series User Manual
Page 2: Loop-control cpu unit, Sequence control engine loop control engine
3
Introducing the New Style of Loop Control
Advanced controller functions integrated with the same CJ-series
functionality and high-speed capabilities
Duct
Duct
90 mm high
S82K
G3J
J7AN
Power supply
SSR
Contactor
The same level of high-speed processing
Digital Controller
High-speed processing
(Example: 1-ms response)
High-speed processing
(Example: 50 ms)
SYSMAC CJ-series PLC
Dedicated microcomputer board
PCMIX Values
CJ1G
SYSMAC
7.4
1.4
Sequencing
Only One CPU Unit Needed
Greatly
reduces space
between ducts
Note: Loop configuration: Ai4 Terminal + Segment Linearizer + Basic PID + Ao4 Terminal
The external I/O response time in the overall system refers to the conversion time.
Ultra-small size fits in most
devices
Backplane-free structure provides
the functions you need in
minimum space.
Low-cost solution for controlling
multiple loops
Control functions have the added
ability to control multiple loops.
Consolidating the proven CS-
series loop-control technology
Effective maintenance functions
Function block programming for
easy engineering
Seamless integration of sequence
control and loop control.
HMI windows can be simply
generated from function blocks
automatically.
Super compact: Only 90 mm High and 65 mm Deep, and
Backplane-free structure enables flexible width design.
High-speed sequence control functions can be used directly for
high-speed, advanced loop control.
Compact PLC Aids Machine Downsizing by Fitting Just About Anywhere.
Wide Array of I/O Units, Special I/O Units, and CPU Bus Units Are Available to Suit Your Application.
Sequence control: Executes 20-Kstep ladder programs in 1 ms (with basic instructions only).
PCMIX = 7.4 LD or OUT executed in 40 ns
Loop control: Executes PID operations for 20 loops in up to 10 ms. This is a guide for general
applications.
(See note.)
Integrated Loop Control and Sequence Control
Sequence Control Engine
Loop Control Engine
An engine for controlling analog quantities (e.g., temperature, pressure, flowrate) is built into the CPU Unit together
with the engine for executing sequence control, delivering high-speed sequence control and high-speed, advanced
analog quantity control in a single Unit.
CPU Unit element:
CJ1G-CPU4 H
69 mm
D: 65 mm
90 mm
Loop-control
CPU Unit
2
CX-Programmer sequence control program
(ladder, function block, structured text)
Loop Controller Element:
Up to 300 or 50 function blocks
CX-Process loop control program (function blocks)
20-Kstep
1 ms
Execute
20-Kstep
ladder
programs in
1 ms
(See note.)
Note: Basic instructions only
20 Loops in 10 ms
Execute PID Control for
20 Loops
10 ms
(See note.)
Note: General application (e.g., loop
configuration: Ai4 Terminal + Segment
Linearizer + Basic PID + Ao4 Terminal)