Omron CX-PROCESS TOOL INTRODUCTION GUIDE

INTRODUCTION GUIDE

CX-Process Tool

Cat. No. R143-E1-01

The CX-Process Tool Operation Manual is included as a PDF file

on the CX-One CD-ROM under OMRON/CX-One/CX-Process

Tool. Be sure to read the Precautions and other information at the

beginning of the manual before using the CX-Process Tool.

This CX-Process Tool Introduction Guide describes basic

operating procedures for the CX-Process Tool. For application

precautions and detailed descriptions, refer to the Help or the PDF

Operation Manual.

Note: Acrobat Reader 4.0 or higher is required to display the PDF file.

The CX-Process Tool

A Loop Controller is a Controller that has the functionality of multiple high-

performance Controllers. Combining function blocks that form functional

components enables programming control without restrictions for analog values,

such as temperatures, pressures, and flowrates.

Programming with the CX-Process Tool enables graphical engineering to paste

function blocks and connect lines with the mouse. The system also has the

following features compared with single-loop controllers and dedicated temperature

controllers.

1. The system is based on PLCs, so a wide variety of PLC Units, such as Process

I/O Units, Analog I/O Units, and Communications Units, can be used.

2. Data can be exchanged with the ladder-programmed CPU Unit at a high speed

without any programming, so loop control programming can be coordinated with

sequence control.

3. Changes, such as increasing or decreasing the number of loops and changing

the control methods, can also be flexibly performed by combining function

blocks.

A simple example of programming for one-loop temperature control will be

presented as a sample in this Introduction Guide. Function blocks can also be

combined for multi-loop control, cascade control, heating/cooling control, and

program control.

CONTENTS

Overview

SECTION 1

Example System

System Configuration

Creating Function Block Data

Creating Simple Function Block Data
for the Loop Controller

Starting the CX-Process Tool 1-2

1

Making a New Project

2

Registering the Loop Controller

3

Creating Function Block Data

4

Connecting Function Blocks

5

Set ITEMs for Function Blocks

6

Communications Settings between Computer and PLC

7

Transferring Function Block Data to the Loop Controller

8

Starting Operation

9

1-1

1-2

1-4

1-5

1-8

1-9

1-12

1-14

1-15

SECTION 2

Appendix

PID Tuning

10

Uploading and Saving Function Block Data

11

Making the NS-series PT Screen
for the Loop Controller

Setting the CSV Tags in Advance

1

Automatically Creating the NS-series PT Screen for the Loop Controller

2

Displaying the NS-series PT Screen for the Loop Controller

3

Useful Functions

1-16

1-19

2-1

2-2

2-2

2-6

Overview

Example
System

This section provides an explanation of basic CX-Process Tool operation

using the following simple system as an example.

System Configuration

CX-Process Tool
(Support Software)

CJ-series Loop-control
CPU Unit
CJ1G-CPU45P

Isolated-type Ther­mocouple Input Unit
CJ1W-PTS51

Analog Output Unit
CJ1W-DA041

Cable (2 m) for
Peripheral Bus (Toolbus)
CS1W-CN226

Note: The Loop

Controller it­self does not
have analog
I/O. Therefore,
PLC CPU Bus
Units must be
used.

NS-series PT
(Touch Panel)
NS12

Screen for Loop Controller

RS-232C Cable
XW2Z-200T (2 m)

Temperature sensor

Type K thermocouple

PID

Input 1 Output 1

4 to 20 mA

Refer to Creating Function
Block Data on the
following page.

Thyristor Unit
(Power Controller)
G3PX

SCR

● This system controls one loop.

- A type K thermocouple is used for the temperature sensor input.

- The temperature range is 0.0 to 500.0°C.

-

The output is 4 to 20 mA and heater control is performed using a Thyristor Unit (Power Controller).

- Continuous proportional PID is set.

Note: The default operation cycle (1 s) is used.

●

The screen for the Loop Controller is displayed by connecting a NS-series PT (Touch Panel).

Creating Function Block Data

Thermocouple
Input Unit
CJ1W-PTS51

Type K
thermocouple

Function Block Data

Field Terminal Block for
Analog Input (Isolated
Ai 4-point Terminal
(PTS51)) (Block Model

566)
Inputs the analog signal
from the CJ1W-PTS51.

Control Block for PID
Control (Basic PID)
(Block Model 011)
Performs PID
calculations.

Field Terminal Block for
Analog Output (Ao 4­point Terminal (DA041)
(Block Model 587)
Outputs the analog
signal from the CJ1W­DA041.

Analog Output Unit
CJ1W-DA041

4 to 20 mA

Loop Controller

(in CJ-series CJ1G-CPU45P Loop-control CPU Unit)

To simplify descriptions, operations for startup settings at the PLC
(such as creating I/O tables (see note) and setting DM Area words
allocated to Analog I/O Units) is not included in the following
description of operations for the CX-Process Tool. Be sure to
separately make the settings using the CX-Programmer.

Note: With CJ-series Loop-control CPU Units, I/O tables can be automatically generated

based on the mounted Units when the power supply is turned ON without
performing the operation to create I/O tables. (With CS-series CPU Units, an
operation must be performed to create the I/O tables.)

Creating Simple
Function Block Data
for the Loop
Controller

This section presents the flow of operations for
starting the CX-Process Tool (Support
Software), inputting the thermocouple, creating
function block data for one PID loop with an
output of 4 to 20 mA, downloading the data to
the Loop Controller, tuning PID control, and
saving files.

1-1

Creating Simple Function Block Data for
the Loop Controller

1
2

Starting the CX-Process Tool/Making a New Project

Starting the CX-Process Tool

Starting the CX-Process Tool

1

1

From the Start Menu, select All

Programs - OMRON - CX-One - CX­Process Tool - CX-Process Tool to

start the CX-Process Tool.

Making a New Project

Making a New Project

2

2

1. Select CX-Process Tool.

The window at the right will open when
the CX-Process Tool starts.

First, make a project.

Click the Make a New Function Block
File Button to make a new project.

1-2

2-1. Make a new project.

Select a folder in which to save the
data, and then click the OK Button.

The window at the right will open when
the OK Button is pressed. Enter the
project name.

● For example, enter
"Temperature
Control."

2-2. Select the folder in which

to save the data.

Click the OK Button.

2-3. Enter the project

name.

2

Making a New Project

The folder in which the project name
was entered (called the project folder)
will be created in the window on the left
(called the project workspace).

2-4. A project folder called "Temperature Control" is created.

1-3

Registering the Loop Controller

Registering the Loop Controller

3

3

Next, register the Loop

3

Registering the Loop Controller

Controller to be used.

Right-click the Project Folder

Creating Simple Function Block Data for
the Loop Controller

3-1. Right-click the Temperature

Control Folder and select Insert.

and select Insert.

A dialog box for selecting the Loop
Controller will open.
The Loop Controller to be used is a
CJ-series Loop-control CPU Unit.
Therefore, first select Loop CPU
Unit/Process Unit for the LC type.

Next, select the model number and
LCB Unit version. The model number
is the CJ1G-CPU45P and the version
is 3.0.

3-2. Select the Loop CPU

Unit/Process CPU Option
for the LC type.

3-3. Select the model number and the LCB Unit version

in the Unit Information Field. Select CJ1G-CPU45P
for the model number and 3.0 for the version.

1-4

Click the OK Button.