Omron CJ1M-CPU series User Manual (English)

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CJ1-H and CJ1M CPU Unit Features Section 1-3

1-3-2 High-speed Structured Programming

To further aid standardized programming, program structuring functions have

been improved, as has program execution speed.

More Cyclic Tasks Tasks provide better efficiency by enabling programs to be separated by func-

tion or for development by different engineers. The CJ1-H CPU Units support

up to 288 cyclic tasks, an incredible increase over the previous maximum of

32 tasks.

Common Processing from

Multiple Tasks

Global subroutines that can be called by any task are now supported. These

can be used for common processing from more than one task, for greater

standardization.

Faster Subroutine

Instructions

Subroutine instruction are executed approximately 9 or 17 times faster to

enable greater program modularization without having to be concerned about

increasing the cycle time.

Shared Index and Data

Registers between Tasks

Although separate index and data registers can still be used in each task, they

have been joined by shared index and data registers that can be used

between tasks to reduce the time required to switch between tasks.

1-3-3 More Instructions for Specific Applications

Very specific control can be easily programmed for a much wider range of

applications with the many new special instructions added to the CJ1-H CPU

Units.

High-speed Positioning

for XY Tables

Double-precision floating-point calculations are supported for the CJ1-H CPU

Units to provide even better precision for position control operations.

Convert between Floating

Point and Text String Data

To display floating-point data on PTs, the CJ1-H CPU Units provide conver-

sion instructions from floating-point data to text strings (ASCII). Conversion

between ASCII and floating-point data is also possible so that ASCII data from

serial communications with measurement devices can be used in calcula-

tions.

Accurate Line

Approximations

Unsigned 16-bit binary/BCD data, signed 16/32-bit binary data, or floating-

point data can be used for line data, enabling precise (high data resolution)

conversions, such as from a level meter (mm) to tank capacity (l) based on the

shape of the tank.

Realtime Workpiece Data

Management

When loading and unloading workpieces from conveyor lines, workpiece infor-

mation can be managed in realtime in table format.

PID Autotuning Autotuning is now supported for PID constants with the PID CONTROL

instruction. The limit cycle method is used to ensure rapid autotuning. Very

effective for multiloop PID control.

System Debugging

through Error Simulation

A specified error status can be created with the FAL/FALS instructions. This

can be used effectively when depending systems. For example, errors can be

simulated to produce corresponding displays on a PT to confirm that the cor-

rect messages are being displayed.

Program Simplification

with More Specific Basic

Instructions

Programs that use a high quantity of basic instructions can be simplified

though the use of differentiated forms of the LD NOT, AND NOT and OR NOT

instructions, and through the use of OUT, SET, and RSET instructions that

can manipulate individual bits in the DM or EM Area.

Other manuals for Omron CJ1M-CPU series

Programming Manual383 pages

Replacement Guide24 pages

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Omron CJ1M-CPU series Specifications

General

Series	CJ1M
Program Memory	Flash Memory
Power Supply Voltage	24V DC
Operating Temperature	0 to 55°C
Type	Programmable Controller
CPU Type	CPU11, CPU12, CPU13, CPU21, CPU22, CPU23
Data Memory	SRAM
Data Memory Capacity	32K words (CJ1M-CPU11/12/13), 64K words (CJ1M-CPU21/22/23)
Instruction Execution Time (Basic Instructions)	0.1 μs (LD instruction)
Instruction Set	Basic instructions, advanced instructions
Programming Language	Ladder Diagram, Structured Text, Function Block Diagram
Communication Ports	RS-232C
Expansion Slots	Up to 3
Mounting	DIN rail mounting
Storage Temperature	-25 to 70°C
Dimensions	90 x 90 x 70 mm
Weight	Approx. 200g (0.44 lb)
Number of Instructions	Over 400 instructions