List of Function Blocks

System Common Block

List of Function Blocks

System Common Block

 

Operation Blocks

Type

Block Name

 

Function

 

 

 

 

---

System Common

 

Makes settings common to all function

 

 

 

blocks and outputs signals for the system.

Control Blocks

 

 

 

 

 

 

 

 

Type

Block Name

 

Function

Controller

2-position ON/OFF

 

2-position type ON/OFF controller

 

(See note 1.)

 

 

 

 

 

 

 

3-position ON/OFF

 

3-position type ON/OFF controller for

 

(See note 1.)

 

heating/cooling ON/OFF control

 

 

 

 

 

Basic PID

 

Performs basic PID control.

 

(See note 1.)

 

 

 

 

 

 

 

Advanced PID

 

Performs advanced PID control for

 

(See note 1.)

 

enabling deviation/MV compensation,

 

 

 

MV tracking, etc.

 

Blended PID

 

Performs PID control on the cumulative

 

(See note 2.)

 

value (cumulative deviation) between the

 

 

 

accumulated value PV and accumulated

 

 

 

value Remote Set Point.

 

 

 

 

 

Batch Flowrate

 

Functions to open the valve at a fixed open-

 

Capture (See note 2.)

 

ing until a fixed batch accumulated value is

 

 

 

reached.

 

Fuzzy Logic

 

Outputs up to 2 analog outputs based on

 

(See note 2.)

 

fuzzy logic performed on up to 8 analog

 

 

 

inputs.

 

Indication and Setting

 

Manual setter with PV indication and SP

 

(See note 1.)

 

setting functions

 

Indication and Opera-

 

Manual setter with PV indication and MV

 

tion (See note 1.)

 

setting functions

 

Ratio Setting

 

Ratio and bias setter with PV indication and

 

(See note 1.)

 

ratio setting function

 

Indicator

 

PV indicator with PV alarm

 

(See note 1.)

 

 

Note: 1. The Function Blocks dealing with high-speed operation (operation cycle: 0.01, 0.02, and 0.05 seconds is possible).

2.Cannot be used with the CJ1G-CPU45P-GTC.

Type

Block Name

Function

Alarm/Signal

High/Low Alarm

Provides the alarm contact outputs for the high

restrictions/

(See note 1.)

and low limits of single analog signals.

Hold

 

 

Deviation Alarm

Provides the alarm contact outputs for the devia-

 

 

(See note 1.)

tion of two analog signals.

 

 

 

 

Rate-of-change Opera-

Provides the alarm contact outputs for the high

 

tion and Alarm

and low limits of rate-of-change operation when

 

(See note 1.)

the analog signal rate-of-change is output.

 

 

 

 

High/Low Limit

Limits the high and low limits of single analog

 

(See note 1.)

signals.

 

Deviation Limit

Calculates the deviation between two analog

 

(See note 1.)

signals, and limits the deviation within that range.

 

 

 

 

Analog Signal Hold

Holds the maximum, minimum or instantaneous

 

(See note 1.)

value of single analog signals.

 

 

 

Arithmetic

Addition or Subtraction

Performs addition/subtraction with gain and bias

 

(See note 1.)

on up to 4 analog signals.

 

Multiplication

Performs multiplication with gain and bias on up to

 

(See note 1.)

2 analog signals.

 

 

 

 

Division (See note 1.)

Performs division with gain and bias on up to 2

 

 

analog signals.

 

 

 

 

Arithmetic Operation

Performs various math operation (trigonometric,

 

(See note 1.)

logarithmic, etc.) on floating-point decimal values

 

 

converted (to industrial units) from up to 8 analog

 

 

inputs.

 

Range Conversion

Easily converts up to 8 analog signals simply by

 

(See note 1.)

inputting the 0% and 100% input values and 0%

 

 

and 100% output values.

 

 

 

Functions

Square Root

Performs square root extraction (with low end

 

(See note 1.)

cutout) on single analog signals.

 

 

 

 

Absolute Value

Outputs the absolute value of single analog sig-

 

(See note 1.)

nals.

 

Non-linear Gain

Performs non-linear (3 gain values) operation on

 

(Dead Band)

single analog signals. Analog signals can also set

 

(See note 1.)

as a dead band (with different gap).

 

 

 

 

Low-end Cutout

Sets output to zero close to the zero point of single

 

(See note 1.)

analog signals.

 

 

 

 

Segment Linearizer

Converts single analog signals to 15 segments

 

(See note 1.)

before the signals are output.

 

Temperature and

Performs temperature and pressure correction.

 

Pressure Correction

 

 

(See note 1.)

 

 

 

 

Time Function

First-order Lag

Performs first-order lag operation on single analog

 

(See note 1.)

signals.

 

 

 

 

Rate-of-change Limit

Performs rate-of-change restriction on single

 

(See note 1.)

analog signals.

 

Moving Average

Performs moving average operation on single

 

(See note. 1)

analog signals.

 

 

 

 

Lead/Delay (See note 1.)

Performs lead/delay operation on single analog

 

 

signals.

 

 

 

 

Dead Time (See note 1.)

Performs dead time and first-order lag operations

 

 

on single analog signals.

 

Dead Time Compensa-

Used for Smith's dead time compensation PID

 

tion

control.

 

 

 

 

Accumulator for instanta-

Accumulates analog signals, and outputs 8-digit

 

neous value input

accumulated value signals.

 

 

 

 

Run Time Accumulator

Accumulates the operating time, and outputs the

 

 

pulse signal per specified time.

 

Time Sequence Data

Records time sequence data from analog signals

 

Statistics (See note 1.)

and calculates statistics, such as averages and

 

 

standard deviations.

 

 

 

 

Ramp Program

Ramp program setter for combining ramps for time

 

 

and hold values.

 

 

 

 

Segment Program

Segment program setter setting the output values

 

 

with respect to time.

 

Segment Program 2

Segment program setting with wait function for

 

 

setting the output values with respect to time.

 

Segment Program 3

 

 

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Omron CJ-Series manual List of Function Blocks, System Common Block Operation Blocks, Control Blocks

CJ-Series specifications

The Omron CJ-Series is a cutting-edge line of programmable logic controllers (PLCs) designed to meet the demands of modern industrial automation. The CJ-Series is noted for its robust architecture, flexibility, and a broad range of functions that cater to a variety of applications.

One of the standout features of the CJ-Series is its modular design, which allows users to create a system tailored to their specific needs. The series supports numerous input and output modules, enabling the seamless integration of various sensors, actuators, and other devices. This modularity not only simplifies system expansion but also allows for easy maintenance and upgrades without the need for complete system overhauls.

Another notable characteristic of the CJ-Series is its high processing speed and capacity. Equipped with advanced processing technology, these PLCs can handle complex control tasks efficiently, making them suitable for high-speed applications in sectors like automotive manufacturing, food and beverage production, and packaging. The CJ-Series also features an extensive memory capacity, allowing for the storage of large programs and enhanced data handling capabilities.

Communication is a critical aspect of modern automation systems, and the CJ-Series excels in this area as well. It is compatible with various communication protocols, such as EtherNet/IP, DeviceNet, and Profibus, facilitating easy integration with existing networks. This versatility ensures that the CJ-Series can communicate seamlessly with other devices and systems, enriching data exchange and overall system performance.

One of the advanced technologies incorporated in the CJ-Series is the use of function blocks and structured programming, which simplify complex programming tasks. This approach allows users to create more organized programs that are easier to debug and maintain. The CJ-Series also offers support for various programming languages, including ladder logic, structured text, and function block diagrams, catering to different user preferences and expertise.

Reliability and durability are intrinsic features of the CJ-Series. Designed to withstand harsh industrial environments, these PLCs offer robust protection against temperature variations, electrical noise, and other potential hazards. This resilience ensures long-term operational stability, reducing downtime and maintenance costs.

In summary, the Omron CJ-Series represents a significant evolution in PLC technology, boasting modularity, high processing capabilities, advanced communication options, and user-friendly programming. With these features, the CJ-Series stands out as an ideal solution for a wide range of industrial automation needs, empowering manufacturers to operate efficiently and effectively in an increasingly competitive landscape.