Omron NT31, NT31C User Manual

4 (2)

Cat. No. V062-E1-02

NT31 and NT31C

Programmable Terminals

Setup Manual

NT31and NT31C

Programmable Terminals

Setup Manual

Revised January 2003

iv

Notice:

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

! DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

! WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

! Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

Note Indicates information of particular interest for efficient and convenient operation of the product.

1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

OMRON, 2000

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

v

vi

 

TABLE OF CONTENTS

 

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xi

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

SECTION 1

 

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

1-1

Role and Operation of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

1-2

Functions of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

1-3

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

1-4

Communications with the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

1-5

Communications Using Memory Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

1-6

Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

SECTION 2

 

Preparing for Connection . . . . . . . . . . . . . . . . . . . . . . . . .

25

2-1

Method for Connection to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

2-2

Names and Functions of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29

SECTION 3

 

Hardware Settings and Connections . . . . . . . . . . . . . . . .

31

3-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32

3-2

Connecting to the Support Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

3-3

Connecting a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36

3-4

Connecting a Bar Code Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37

3-5

Using a Memory Unit (-Vj Versions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39

3-6

Using a Memory Unit (Versions without the -Vj Suffix) . . . . . . . . . . . . . . . . . . . . . . . .

47

SECTION 4

 

Connecting to the Host from the RS-232C Port . . . . . . .

53

4-1

Connecting to the RS-232C Port at the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54

SECTION 5

 

Connecting to the Host from the RS-422A/485 Port . . . .

85

5-1

Connecting to the Host’s RS-232C Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

86

5-2

Connecting to the Host’s RS-422A/485 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100

SECTION 6

 

System Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . .

131

6-1

System Menu Operation Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

133

6-2

Starting the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

134

6-3

Operation Modes and the System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

135

6-4

Memory Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

140

6-5

Operations in the System Installer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150

6-6

Transmitting the Screen Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

155

6-7

Setting Conditions for Communications with Host by Using Memory Switches . . . . . . .

157

6-8

Starting Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

168

6-9

System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

168

6-10

Setting the Bar Code Reader Input Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

188

6-11

System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

191

6-12

Programming Console Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

221

6-13

Device Monitor Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

227

6-14

Version Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

230

vii

TABLE OF CONTENTS

SECTION 7

 

Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . .

231

7-1

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

232

7-2

Responding to Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

235

7-3

Maintenance of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

241

7-4

Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

245

Appendices

A

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

247

B

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

255

C

Using an RS-232C/RS-422A Convertor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

259

D

Transporting and Storing the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

265

E

Making the Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

267

F

Making the Cable for Connecting a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

269

G

Making the Cable for Connection to a Bar Code Reader . . . . . . . . . . . . . . . . . . . . . . . . . . .

271

H

Making the Cable for Connection to a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

273

I

Relationship between System Program and Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

275

J

Model List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

277

K

Option List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

283

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

285

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

289

viii

About this Manual:

This manual describes connecting the NT-series NT31 and NT31C Programmable Terminals to a PC (Programmable Controller) or other host and peripheral devices and the settings required for communications and applications. It includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before attempting to install and operate the Programmable Terminal.

Section 1 provides fundamental information about the functions and features of the PTs, types of connection, communication methods, etc. This information will enable you to understand the applications of the PTs.

Section 2 describes the connection methods that are possible with the PTs, and the functions of the parts of PTs, as the required knowledge before connecting to the host and to the peripheral devices.

Section 3 describes the settings of the PTs and methods for connection to peripheral devices.

Section 4 describes the method for connecting to the host using the RS-232C port of the PT.

Section 5 describes the method for connecting to the host using the RS-422A/485 port of the PT.

Section 6 describes the operation of the System Menu, focusing on the procedure to start the PT. Functions that are convenient when using the PT and those that are useful for system maintenance are also explained here.

Section 7 describes the action to take when errors occur in the PT, and how to carry out maintenance and inspection to prevent the occurrence of errors.

The Appendices provide specifications, dimensions, procedures for using an RS-232C/RS-422A Convertor Unit, procedures for transporting and storing the PT, information on cable preparation, information on the relationship between the system program and hardware, and product lists.

! WARNING Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

ix

TABLE OF CONTENTS

Related Manuals:

Related manuals are listed below.

The j symbol at the end of the catalog number is the revision number.

Connecting and Setting Up the Programmable Terminal

S NT31 and NT31C PT Setup Manual (V062-E1-j, this manual)

This manual describes connecting the Programmable Terminals to a host and peripheral devices and settings required for communications and applications.

The functions and actual operating methods for the NT31 and NT31C PTs are provided in the Reference Manual (V064-E1-j).

Programmable Terminal Functions and Operation

S NT31/31C/631/631C PT Reference Manual (V064-E1-j)

This manual is used for any of the following PTs: NT31, NT31C, NT631, and NT631C. It describes screen configurations, part functions, host control methods, and other application information.

PT connection and setup procedures are described in the NT31 and NT31C PT

Setup Manual (V062-E1-j).

Creating and Transferring Screen Data, and Installing the System Program

S NT-series Support Tool for Windows Ver. 4.1 Operation Manual (V061-E1-j)

The screens displayed on the NT31 and NT31C PTs are created with the Support Tool and transferred to the PT. This manual describes how to create and transfer screen data. It also describes how to download a system program to a PT using the System Installer.

The NT-series Support Tool for Windows is normally referred to as merely the

Support Tool.

Connecting to Controllers Not Made by OMRON

S PC Connection Manual (V042-E1-j)

The NT31 and NT31C PTs can be connected to controllers in the following series: Mitsubishi A Series and FX Series. This manual describes the connection and setup methods for these controllers.

The NT-series Support Tool for Windows Version 4.1 is required to connect the

NT31 and NT31C PTs to these controllers.

S NT31/NT631 Multi Vendor Connection Manual (V060-E1-j)

The NT31 and NT31C PTs can be connected to controllers in the following series: Allen-Bradley SLC 500 Series, GE Fanuc 90-20 and 90-30 Series, and Siemens S7-300 and S7-400 Series. This manual describes the connection and setup methods for these controllers.

x

PRECAUTIONS

This section provides general precautions for using the Programmable Terminal.

The information contained in this section is important for the safe and reliable application of the Programmable Terminal. You must read this section and understand the information contained before attempting to set up or operate a Programmable Terminal.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

2

General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

3

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii

xi

Safety Precautions

3

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

Personnel in charge of introducing FA systems into production facilities.

Personnel in charge of designing FA systems.

Personnel in charge of installing and connecting FA systems.

Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for using the Programmable Terminal. Be sure to read this manual before attempting to use the software and keep this manual close at hand for reference during operation.

! WARNING It is extremely important that Programmable Terminals and related devices be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying Programmable Terminals to the above-mentioned applications.

! WARNING Do not use input functions such as PT touch switches for applications where danger to human life or serious damage is possible, or for emergency switch applications.

3 Safety Precautions

Safety Conventions andtheir Meanings

Read these safety precautions carefully and make sure you understand them before using the Programmable Terminal so that you can use it safely and correctly.

This operation manual uses the following conventions and symbols to indicate cautions, warnings, and dangers in order to ensure safe use of the NT31/31C. The cautions, warnings, and dangers shown here contain important information related to safety. The instructions in these cautions, warnings, and dangers must be observed.

! WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

! Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.

xii

Safety Precautions

3

WARNING

Do not attempt to take the unit apart and do not touch any internal parts while the power is being supplied. Doing either of these may result in electrical shock.

WARNING

Switch OFF the NT31/NT31C power before replacing the backlight. Otherwise you could sustain an electric shock.

CAUTION

Do not touch the backlight immediately after switching OFF the power supply.

Otherwise burn injuries may result due to the high temperatures.

xiii

SECTION 1

General

This section provides fundamental information about the functions and features of the PTs, types of connection, communication methods, etc. This information will enable you to understand the applications of the PTs.

1-1 Role and Operation of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

 

1-1-1 Operation of an NT31/NT31C at an FA Production Site . . . . . . . . . . . . . . . . . . . .

2

 

1-1-2 Operations of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

1-2 Functions of the NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

 

1-2-1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

 

1-2-2 Comparison between NT31 and NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

 

1-2-3 Additional Functions of the V2 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

 

1-2-4 Comparison between NT30/NT30C and NT31/NT31C . . . . . . . . . . . . . . . . . . . .

7

 

1-2-5 Principal Functions of NT31/NT31C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

 

1-2-6

Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

1-3

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

1-3-1 Peripheral Devices That Can Be Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

1-3-2 Connecting to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

1-4 Communications with the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

 

1-4-1

Direct Connection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

 

1-4-2

Host Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

 

1-4-3

NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

 

1-4-4 Connecting to other Companies’ PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

1-5 Communications Using Memory Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

 

1-5-1

Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

 

1-5-2 Comparison between Direct Connection and Memory Link . . . . . . . . . . . . . . . . .

21

 

1-5-3 Memory Link Online Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

1-6

Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

1

Role and Operation of the NT31/NT31C

Section 1-1

1-1 Role and Operation of the NT31/NT31C

The NT31/NT31C is a sophisticated display unit (programmable terminal) which automatically displays information and can also be used for operations when necessary. The following gives a general description of the role and operation of the NT31/NT31C for those using a programmable terminal (PT) for the first time.

1-1-1 Operation of an NT31/NT31C at an FA Production Site

Production Line Status

Monitoring

The NT31/NT31C displays real-time information about the system and equipment operating status, etc. Its power of expression is enhanced by graphs and other visuals, making the displays easy to understand.

Production Control (3)

Product

Today’s target

560

441

Current production

305

275

Number defective

2

8

Number repaired

7

15

% achieved

Directions to Workers on

The NT31/NT31C warns of system or equipment failures and prompts the ap-

the Shop Floor

propriate remedial action.

Alarm

Assembly line B

Positioning pin

is defective. Line stopped. Check the following.

1. Defective pin L3

2. Position of dog M2

3. Mounting of photosensor P5

Panel Switch Functions Setting touch switches on the NT31/NT31C allows workers to use the NT31/NT31C as an operating panel; the results of the operations are transmitted to the host.

Electroplating control

Transport

Electr.

Wash.

Corr. prv.

head

head

head

 

Clamp

 

 

 

Unclamp

 

 

 

Adv.

Electro-

 

Corr.

Int. stop

Wash

lyte

prv.fluid

Rev.

 

 

 

 

2

Omron NT31, NT31C User Manual

Role and Operation of the NT31/NT31C Section 1-1

1-1-2 Operations of the NT31/NT31C

Displays Screens

The information to be displayed (screen data) can be created on a computer us-

 

ing the Support Tool and stored in the NT31/NT31C. The screen data can be

 

displayed on the NT31/NT31C in response to instructions from the host or touch

 

switch operation.

 

Host

The screen data designated by

instructions from the host or touch

switch operation is displayed.

Receives Data from a Host

Sends Data to a Host

The NT31/NT31C can be connected to the host by a host link or NT link and receive necessary data from the host.

Host link, NT link

Host

 

Data input using the touch panel (switch ON/OFF statuses, numeric values, character strings) can be transmitted to the host.

Host

Touch panel

ON/OFF information, numeric

data, etc.

Screen Data

The screen data to be displayed on the NT31/NT31C can be created on a per-

 

sonal computer using the Support Tool. Connect the NT31/NT31C to the per-

 

sonal computer with an RS-232C cable and transmit the screen data to the

 

NT31/NT31C.

 

 

 

Create screen data.

 

RS-232C

Personal

 

 

 

 

computer

 

 

(Support Tool)

 

Screen data

 

 

When the host is connected at serial port A,

 

 

the personal computer is only connected

 

 

when communicating screen data between

 

 

the NT31/NT31C and Support Tool.

3

Functions of the NT31/NT31C

Section 1-2

1-2 Functions of the NT31/NT31C

The NT31/NT31C has the following features.

1-2-1 Features

Downsized Body

Slim body (50 mm or less in the panel*).

The communication cable connectors are housed in the unit so that they do not protrude from the unit.

*When mounted in a panel of the recommended thickness (page 32).

Construction Best Suited to the FA Environment

The panel is an STN monochrome LCD type with backlight for the NT31 and an STN color LCD type with backlight for the NT31C.

The backlight unit and battery can be replaced at the operation site.

Waterproofed equivalent to the NEMA4 standard and to IP65F*.

*The panel may not be usable in environments where it is exposed to oil for long periods.

320 dots

POWER

RUN

240 dots

Wide angle of visibility

Touch Switch Operation Contrast and brightness are adjustable by touch switch operations.

Compatibility with Other PTs

There is upward compatibility between the NT31/NT31C and the following models for screen data and user programs: NT11S, NT20S, NT30, NT30C, NT600S, NT610G, NT610C, NT620S, NT620C, NT625C, NT631, NT631. (After being read to the Support Tool, screens must be modified in accordance with the screen size. Depending on the function used, partial modification of programs may also be necessary. For details on the compatibility of screen data, refer to the NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual and the NT-series Support Tool Operation Manual.

The dimensions of the panel cut-out to accommodate the NT31/NT31C are the same as for the NT30/NT30C.

Two Ports Featured as Standard:

Port A for Common Use by Support Tool/Host and Port B for Exclusive Use by the Host

Communication with the host is possible via another port while connected to the Support Tool.

Reading bar code data from a bar code reader is possible via another port while communicating with the host.

Rapid System Program & Screen Data Changes Possible Using a Memory Unit

Installing a memory unit (type NT-MF261) on the rear of the NT31/NT31C makes it easy to write screen data into the NT31/NT31C on site. This enables a rapid response to setup changes.

NT31/NT31C can store a system program into a memory unit. This enables the system to handle more flexible setups.

4

Functions of the NT31/NT31C

Section 1-2

Screen Data Check

Function

Increased Screen Data

Capacity

Large Increase in

Maximum Number of

Registered Elements

Binary Data can be Read to/Written from the Host

Character Display Using

High Definition Fonts

Simple Version Upgrades

Complies with International Standards

Compatible with Other Vendors’ Devices

Multiple Windows

Screen data can be checked simply by operations at the NT31/NT31C system menu, without connecting up to the Support Tool.

The data capacity of 1 MB is twice that of the NT30/NT30C, enabling storage of a larger quantity of screen data.

The number of elements that can be registered on one screen has been considerably increased, making it possible to create more expressive screens. For details, refer to Display Restrictions in Appendix A Specifications of the NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual.

It is now possible to write binary data stored in words at the host directly to the NT31/NT31C. This makes data conversion by a program at the host unnecessary, reducing the load on the host.

Any quadrupled characters are displayed with a 32 dot high-definition font.

By using the system installer supplied with the Support Tool (Type NT- ZJCAT1-EV4), the system program at the NT31/NT31C can be changed easily from a personal computer.

The NT31/NT31C meets UL/CSA standards and EC directives.

Compatible with Sequencers in the following series: Mitsubishi A-series (Calculator Link) and FX-series (Programming Console), Allen-Bradley SLC 500 Series, GE Fanuc 90-20 and 90-30 Series, and Siemens S7-300 and S7-400 Series. Specialized system programs can be installed that allow the NT31/NT31C to be controlled from other companies’ Sequencers.

Up to 3 windows can be displayed simultaneously in the normal screen. A 9-word window control area has been allocated to the host; the contents of these 9 words can be changed from the Host to open, close, and move windows.

1-2-2 Comparison between NT31 and NT31C

Two NT31 models — the NT31, which is capable of versatile graphic displays, and the NT31C, which is also capable of color display — are available. The differences between the NT31 and NT31C are tabled below:

Function

NT31

NT31C

 

 

 

Type

NT31-ST121-EV2 (Beige)

NT31C-ST141-EV2 (Beige)

 

NT31-ST121B-EV2 (Black)

NT31C-ST141B-EV2 (Black)

 

 

 

Display panel

STN monochrome LCD display

STN color LCD type

 

type (with white backlight)

(with white backlight)

Beige and black are the front panel colors of each NT31/NT31C types.

5

Functions of the NT31/NT31C

Section 1-2

1-2-3 Additional Functions of the V2 Versions

 

The V2 versions of NT31/NT31C are supplemented and enhanced by the fol-

 

lowing functions.

High-speed 1:N NT Link

The V2 versions are compatible with the high-speed 1:N NT Link as well as the

 

earlier standard 1:N NT Link.

Additional Mathematical

Operands (values referenced by formula) can be registered to allow the PT to

Functions

perform calculations automatically and write the results of those calculations to

 

numeral memory tables or words in the host.

Device Monitor Function

The new device monitor function can be used to change the PC’s operating

 

mode or display/change values in the PC’s memory areas. The present values

 

(PVs) of several words can be listed with the device monitor.

Interlock Function

PT operations and inputs can be disabled from the PC if interlock bits have been

 

allocated in the PC for the corresponding PT touch switches, numeric inputs, or

 

string inputs.

Improved Lamp/Touch

Switch Labels

NT30/NT30C and

NT620S/NT620C/NT625C

Emulation

Additional CS1 Data

Areas Accessible

Recipe Function

The following displays can be performed with lamp or touch switch labels:

Display several lines of labels.

Switch the display between different labels when OFF and ON.

Display the numeral memory table contents as labels.

Display the string memory table contents as labels.

The word configuration of the PT status control area and PT status notify area can be set to emulate those of the NT30/NT30C or NT620S/NT620C/NT625C; this mode is called NT30/620 compatible mode.

When the PT is operating in NT30/620 compatible mode, it will be equivalent to an NT30/NT30C or NT620S/NT620C/NT625C in the functions listed below. The PT retains full V2 functionality in all functions other than the ones listed below. Refer to Appendix C in the NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual for more details.

Word configuration and functions of the PT status control area and PT status notify area

Image/library codes

Insertion of image/library data into character strings

Data areas in CS1 PCs that were previously inaccessible can be accessed. The data areas listed below can be accessed (read/written).

All banks in the EM area, timer completion flags (TU), counter completion flags (CU), Work areas (WR), Task flags (TK), and the HR area.

You can set the data (numeric values) for multiple words in record units using the tabular elements on the PT screen, and write these settings in a single operation to words on the host (i.e., PC or PT memory) using a touch switch operation on the PT Unit. Also, multiple words of numeric data can be read from the host in one operation. In this way, groups of parameter settings can be edited at the PT Unit, and written to or read from the host.

Adjusting Contrast and

You can display the brightness and contrast adjustment screen using either the

Brightness During PT

touch switch or commands from the host, even while the PT is in operation.

Operation

 

6

Functions of the NT31/NT31C

Section 1-2

1-2-4 Comparison between NT30/NT30C and NT31/NT31C

Item

NT30/NT30C

 

NT31/NT31C

 

 

 

 

 

Support Tool used

 

NT-ZJCAT1-EV4 or NT-ZA3AT-EV2

NT-ZJCAT1-EV4

 

 

 

 

 

DIP switches

 

On rear of unit

None (software settings)

 

 

 

 

 

Use of B7A unit

 

Possible

Not possible

 

 

 

 

 

Use of memory unit

 

Not possible

Possible

 

 

 

 

 

RS-232C interface

 

Connector (9-pin) also used as port for

- Serial port A connector (also used

 

 

 

screen data transfer.

 

for screen data transfer, 9-pin)

 

 

 

 

-

Serial port B connector (for host

 

 

 

 

 

communications only, 25-pin)

 

 

 

 

RS-422A/485 interface

Terminal block

Serial port B (25-pin D-SUB connector)

 

 

 

 

Replacement backlight

NT30-CFL01/NT30C-CFL01

NT31C-CFL01 (common use)

 

 

 

 

NT31/NT31C system program data

NT-ZS3AT-EV1

The system installer and system pro-

 

 

 

(including system installer)

gram data are supplied with the Sup-

 

 

 

 

port Tool.

 

 

 

 

High-speed 1:N NT Link

Not possible

Possible*1

Memory Link

 

System program

Exclusive use by Memory Link

Same as OMRON connection

 

 

 

 

 

 

 

Screen data

Shared with OMRON connection

Exclusive use by Memory Link

 

 

 

 

LCD contrast adjustment

By a control on the rear of the unit

By touch panel operation

 

 

 

Backlight brightness adjustment

Not possible

By touch panel operation

 

 

 

Number of user-registered screens

Maximum of 2000

Maximum of 3999

 

 

 

Screen data capacity*2

512 KB

1 MB

(User program memory)

 

 

 

 

 

 

 

Numeral string data

 

Maximum of 1000

Maximum of 2000

 

 

 

Character string data

Maximum of 1000

Maximum of 2000

 

 

 

 

Bit data

 

256

Maximum of 1000

 

 

 

Mathematical tables

None

256 max.

 

 

 

 

Calculations can be executed

 

 

 

 

automatically in the PT.*1

Image data

 

Maximum of 224

Maximum of 4095*3

Library data

 

Maximum of 896

Maximum of 12288*3

Method for storing numeric values

Fixed as BCD (binary coded decimal)

Selectable from BCD (binary coded

(numeral memory data and PT status

 

decimal) or binary

control area)

 

 

 

 

 

 

 

PT status control area size

4 words

5 words (partial change of contents)*3

PT status notify area size

3 words

2 words (partial change of contents)*3

Window control area size

None

9 CH*2

 

 

 

Registering continuous screen

Possible

Not possible (Use a screen switchover

 

 

 

 

as a substitute.)

 

 

 

Lamp/Touch switch labels

Fixed display (1 line only)

- Multiple lines can be displayed*1

 

 

 

 

-

ON/OFF switching is possible*1

 

 

 

 

-

Numeral display is possible*1

 

 

 

 

-

Character string display is possible*1

Interlock function

 

None

Operations can be disabled from the

 

 

 

 

PC by allocating interlock bits to the

 

 

 

 

corresponding touch switch, numeral

 

 

 

 

input, or character string input.*1

Device monitor function

Not possible

Possible*1

7

Functions of the NT31/NT31C

 

 

 

Section 1-2

 

 

 

 

 

 

Item

 

NT30/NT30C

 

NT31/NT31C

 

 

 

 

Recipe function

None

 

Possible

 

 

 

 

Accessible CS1 PC data areas

---

 

The data areas listed below can be

 

 

 

accessed in addition to the data areas

 

 

 

accessible with the NT30/NT30C.*5

 

 

 

- EM banks (EM_0 to EM_C)

 

 

 

-

Timer completion flags (TU)

 

 

 

-

Counter completion flags (CU)

 

 

 

-

Work areas (WR)

 

 

 

-

Task flags (TK)

 

 

 

-

HR area

*1: These functions are available only in V2 versions of the NT31/NT31C. *2: This is the capacity of the flash memory that stores screen data.

*3: The values are the same as the NT30/NT30C when the PT is in NT30/620 compatible mode. *4: The window control area can be used only in the Vj versions of the NT31/NT31C.

For differences in programming, refer to Appendix B in the NT31/NT31C/NT631/NT631C Programmable Terminal Reference Manual.

8

Functions of the NT31/NT31C

Section 1-2

1-2-5 Principal Functions of NT31/NT31C

The following are the principal functions of the NT31/NT31C.

Functions relating to data display

Character display

Characters of various sizes can be displayed. Characters can be flashed and displayed in reverse video. High grade fonts are available for the characters with their size enlarged.

Graphic display

Polylines, rectangles, polygons, circles, circular arcs, and sector shapes can be displayed. They can also be tiled with various patterns, flashed, or displayed in reverse video.

Memory data display

The contents of character string memory tables and numeral memory tables can be displayed. The contents of memory tables can be changed from the host.

Graph display

Not only bar graphs but also broken line graphs, trend graphs, and analogue meter graphs can be displayed using numeral memory tables

Lamp display

Lamps can be turned on and flashed under the control of the host. It is also possible to display different graphics in the ON and OFF states.

Alarm list/history display

Warning messages are automatically displayed in a list in response to the state of a host bit. The time and the number of times of the messages appeared can also be displayed.

Functions relating to data output

Buzzer

A built-in buzzer can be sounded.

Screen printing

A hard copy of the currently displayed screen can be printed at the printer connected to the NT31/NT31C.

9

Section

Functions relating to data input

Input by touch switches

Data can be input by simply touching touch switches displayed on the screen.

The possible functions of touch switches include sending data to the host and changing the screen display. Inputs can be enabled and disabled from the host when interlock bits have been allocated.

Pop-up window function

A window overlaying the currently displayed screen can be alternately opened and closed by pressing a touch switch.

In addition to fixed character and graphic displays, control keys and character keys created as touch switches can also be set inside the window. A maximum of three windows can be displayed simultaneously. Since the window need only be opened when input is required, the screen can be used efficiently.

Numeral/character string setting function

Numeric keys and character keys can be assigned to touch switches so that numeric values and character strings can be input at the operation site.

The input data is written to numeral/character string memory tables and also sent to the host. It is also possible to disable input by control from the host.

Recipe function

Several words of numeric data can be edited at the PT Unit, and written to or read from the host in one operation.

Input from a bar code reader

Data read with a bar code reader can be input to a character string input field.

Functions relating to communication

Communications with the host

The NT31/NT31C can communicate with the host by four methods: host link, 1:1 NT Link, 1:N NT link (standard or high-speed), and Memory link. Data can be read from the host, and data input by means of touch switches and numeral/character string settings can be sent to the host. It is also possible to connect with other model PCs.

Functions relating to the system

System menu

System settings and maintenance can be performed by selecting from system menus displayed on the screen.

Creation of screen data

Screen data created using the Support Tool at a personal computer can be transferred and stored in the built-in screen data memory.

Resume function

The status and memory table contents of the NT31/NT31C immediately before its operation is stopped can be stored while operation is stopped, or while the power is off, and then displayed on the screen again when operation is restarted.

Screen saver function

This function serves to extend the service life of the backlight and prevent the formation of an afterimage on the screen.

Clock function

The time can be displayed in accordance with the internal clock data.

Programming Console function

The PT can perform the same operations as a C200H-PR027-E Programming Console when the PT is connected to a CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG/HE-(Z)E, or SRM1 PC in a 1:1 NT Link connection, or a CS1G/CS1H PC in a 1:N NT Link connection.

Device Monitor function

When the PT is connected to a PC in a 1:1 NT Link or 1:N NT Link, the PT can be used for operations such as changing the PC’s operating mode, displaying or changing the PVs of words, or reading the error log.

System program install function

The system program of the NT31/NT31C can be changed by using the system installer supplied with the Support Tool (NT- ZJ3AT1/ZJCAT-EV2). It can also be installed by using a memory unit (NT-MF261).

Screen display history function/alarm history function

The screen display history function records the time at which specific screens are displayed and the number of times they are displayed. The alarm history function records the time at which specific bits at the host are turned ON and the number of times they are turned ON.

Trend graph logging function and background function

Changes in the contents of numeral memory tables displayed in trend graphs can be recorded (logging function). Also, the record can be maintained even when the trend graph is not displayed (background function).

Mathematical function

This function allows calculations to be executed continuously during PT operation when mathematical table has been set in screen data. Arithmetic operations, bit operations, logic operations, and comparison operations can be performed. Operations with up to 5 terms are possible.

10

Section

1-2-6 Displays

Characters

(fixed display)

Bar graph

The NT31/NT31C can display various kinds of elements such as characters, numeric values, graphs, lamps, and touch switches, on a screen. The screen data displayed by the NT31/NT31C are created by using the Support Tool at a personal computer.

Line 1 Status

Stop

Restart

 

 

Machine name: NT31C-ST141

 

Production qty.: 137 units

 

 

 

 

 

25%

 

0%

50%

100%

Stage 1

Check 1

Stage 2

Check 2

Touch switches

Characters

(character string display)

Numeric values

(numeral display)

Lamps

Fixed Displays

Characters and various graphics (circles, circular arcs, sectors, polylines, poly-

 

gons and rectangles) whose display does not have to be changed, and mark

 

data, image data, and library data that has already been registered, can be writ-

 

ten directly onto the screen.

 

 

 

Circle

Arc

Sector

Polyline

Polygon

Rectangle

*A continuous straight line with up to 256 points can be drawn.

*A polygon with up to 255 vertices can be drawn.

Marks are graphics comprising 16 by 16 dots that can be used as characters. They can be used as custom characters within character strings.

Image data are graphics comprising any required area of dots. They are registered in advance and as many as required can be displayed at any position on the screen.

Windows bit map (BMP) data can be used for images.

There is a two-color mode, in which the display color and background color of the image are specified when it is registered in a screen, and an eight-color mode in which colors are assigned to the image in advance.

Since image data is composed of dots, it requires a large data size but offers great powers of expression.

11

Section

Library data are combinations of fixed display graphics registered as a single graphic. They are registered in advance and as many as required can be displayed at any position on the screen.

Since it is generated by combining graphics, library data has a small data size.

Mark Image data Library data

Lamps

These are graphics whose display status changes in accordance with the states

 

of bits at the host. Squares, circles, sectors and polygons can be used for lamps

 

(normal (standard) lamps). In accordance with the status of the host bit, they can

 

be lit (displayed in reverse video) or flashed (repeated alternation between nor-

 

mal and reverse video display states).

 

Lamps can also display different image/library data for the ON and OFF states of

 

the host bit (such lamps are called image/library lamps).

 

There are four standard lamp labels: fixed display character strings, ON/OFF

 

switching character strings, numeral displays, and character string displays.

 

When fixed display character strings or ON/OFF switching character strings are

 

used, several lines of labels can be displayed.

 

Normal (Standard) Lamps

 

 

 

 

 

 

 

 

ON

ON

Host

Unlit state

Lit state

Image Library Lamps

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host

 

 

 

 

 

 

 

 

 

 

Unlit state

 

 

 

Lit state

Touch Switches

These switches can be set at any location on the screen. Pressing a touch switch

 

on the screen where a touch switch has been set can have the following effects:

Notification to a host bit (input notification function)

Changing the displayed screen (screen switching function)

Input of a numeric value or character string (input key function)

Copying of a numeric value or character string (copy key function)

Shifting to another numeric value or character string input field (cursor moving key function)

Obtaining a hard copy of the screen (screen print function)

Opening / Closing a window

Moving a window

12

Section

Numeral Displays

String Displays

Numeral Inputs

String Inputs

Touch switches can be made to light or flash in accordance with the status of a host bit in the same way as lamps.

The following 8 types of display graphic can be used for touch switches: Standard, shadow, 3-dimension, no display frame, rectangle, circle, polygon, sector When rectangle, circle, polygon, or sector is selected as the shape, the area within which pressing of the touch switch is sensed (the touch switch area) can be set independently of the position where the display graphic is set.

Touch

switch area

Display

frame

When this

Shown

position is

in

pressed...

reverse

 

 

video

 

 

Function executed

There are four touch-switch labels: fixed display character strings, ON/OFF switching character strings, numeral displays, and character string displays. When fixed display character strings or ON/OFF switching character strings are used, several lines of labels can be displayed.

Numeric values stored in the numeral memory tables are displayed. The displayed numerals can be changed by changing the data stored in the numeral memory tables.

Hexadecimal values can also be displayed.

When decimal values are displayed, the number of digits for the integral part and fractional part of displayed values can be specified in advance.

Character strings stored in the character string memory tables are displayed. The displayed character strings can be changed by changing the data stored in the character string memory tables.

Numeric values can be input at the PT by using touch switches. The input numeric values can also be stored in a numeral memory table and notified to the host.

Numeral inputs can be enabled and disabled from the host when an interlock bit has been allocated.

12345678

 

 

 

7 8 9

 

4

5 6

Input

1

2 3

0

. "

 

Window

Character strings can be input at the PT by using touch switches, bar code readers, etc. The input character strings can also be stored in a character string memory table and notified to the host.

String inputs can be enabled and disabled from the host when an interlock bit has been allocated.

Character string setting input field

Display

 

NT31C

 

Input

 

NT31C NT31

NT631C

13

 

 

Section

 

Thumbwheel Switches

Numeric values can be input by incrementing or decrementing each digit with

 

 

the corresponding touch switch (+, –). The input numeric values can also be

 

 

stored in a numeral memory table and notified to the host.

 

 

Thumbwheel switch inputs can be enabled and disabled from the host when an

 

 

interlock bit has been allocated.

Graphs

These are graphics whose display changes in accordance with the numeric val-

 

ues stored in numeral memory tables. There are the following four types.

 

Bar Graphs

 

Bar graphs display the present value in a numeral memory table converted to a

 

percentage within the range –100% to +100% of a preset value.

 

60%

 

 

 

 

 

 

 

 

 

 

 

 

 

Analog Meters

 

Analogue meters display, using a quarter, half, or full circle shape, the present

 

value in a numeral memory table converted to a percentage within the range

 

–100% to +100% of the preset value. Users can choose from moving pointer

 

type and filling area type displays. Users can also add graduation to the graph.

 

60%

 

 

 

Broken Line Graphs

 

Broken line graphs display, in an easy-to-read form, a sequence of numeral

 

memory table values converted to a percentage within the range –100% to

 

+100% of a preset value.

100%

0%

–100%

Example showing a series of 11 numeral memory table values

(with a check mark set for the display sign)

Trend Graphs

Trend graphs display chronological changes in the value in a numeral memory table, converting the value to a percentage within the range –100% to +100% of a preset value. The trend graph shifts position with the passage of time.

Past data can also be recorded, and the numeral memory table can be read (sampled) even while the trend graph is not being displayed.

The user can choose to stop sampling, restart sampling, or display past data, by pressing touch switches.

14

 

 

Section

 

Alarm List/History

The alarm list/history function displays messages in list form, or graphics

 

 

(image/library data), in accordance with changes in bit memory table statuses.

 

 

For the alarm list, a series of bit memory tables are monitored, and messages

 

 

(contents of character string memory tables) set for bit memory tables that come

 

 

ON are displayed.

 

 

For the alarm history, bit memory tables for which the history property is set are

 

 

continually monitored, and the time when they come ON and number of times

 

 

they come ON are recorded and displayed together with the message (charac-

 

 

ter string) set for the bit memory table.

 

 

The NT31/NT31C allows selection of the display order as the newest record first

 

 

or the oldest record first by memory switch setting.

 

 

The alarm list function is used to determine which bits are ON at the present

 

 

time. The alarm history function is used to determine the times at which alarms

 

 

occurred in the past and how many times alarms have occurred.

 

 

Alarm List

Message (character string table No. 32) set for bit memory table No. 14

Character string table No. 32

Character string table No. 50

Image/library data 1002

 

 

Character string table No. 32

 

Image/library data 113C

Image/library

Character string table No. 54

data 113C

Image/library data 1125

No.13

Bit

 

HOST

 

 

 

A000000

 

 

No.14

0

 

 

 

 

1

 

L001003

 

1(ON)

 

 

 

No.15

0

 

D010015

 

 

 

 

 

 

 

 

When the message displayed is pressed, the image/library data (113C) set for bit memory table No. 14 is displayed.

Alarm History

Message (character string table No. 13) set for bit memory table No. 24

Character string table No. 13

Character string table No. 11

No. 22

Character string table No. 12

Image/library data 005F

 

Character string table No. 12

No. 23

 

 

 

 

Image/library data 102A

 

Image/library

Character string table No. 13

 

data 102B

Image/library data 102B

No. 24

When the upper message displayed is pressed, the image/library data (102B) set for bit memory table No. 13 is displayed.

Recorded data

Bit memory table No. 24 97/12/04 11:19:20

Bit memory table No. 23 97/12/04 11:25:12

Recipe

You can set several words of numeric data at the PT in tabular format, and write it

 

to the host. You can also read several words of numeric data from the host and

 

display it on the PT screen.

15

System Configuration

Section 1-3

1-3 System Configuration

This section shows the configuration of a system that uses an NT31/NT31C. For details on product models, refer to Appendix J Model List (page 277).

1-3-1 Peripheral Devices That Can Be Connected

The following peripheral devices can be connected to an NT31/NT31C.

Host

Bar code reader

Bar codes can be read as character strings.

RS-232C cable (max. 15 m)

or

RS-422A/485 cable

(max. 500 m)

Printer

For printing out the currently displayed NT31/NT31C screen.

Memory unit

NT31/NT31C

Controls the NT31/NT31C as required while controlling machines and monitoring the production line.

Host Link: C series, CVM1/CV series PC, SRM1

Can be connected to CPU units, host link units, and SRM1. However,

connection is not possible to some models of CPU unit and SRM1 (pages 54

and 101).

NT Link: CS1G/CS1H, CPM1, CQM1, C200HS, C200HX/HG/HE(-ZE),

CVM1/CV series PCs, SRM1

Can be connected to CPU units and SRM1. However, connection is notpossible

to some models (pages 67, 72, 111 and 113).

Memory Link: Can be connected to a personal computer, FA computer, etc.

Other companies’ PCs can also be connected.

Personal computer

Running Windows 95/98/NT

Support Tool

Used to create screens for the NT31/NT31C at the personal computer and transmit them to the NT31/NT31C, and to make NT31/NT31C settings.

System installer

Used to change the system program of the NT31/NT31C.

Can store screen data

Displays production line monitoring and

and system program to

instructions to the operation site, and

be read out

notifies the switch ON/OFF status and

automatically at startup.

numeric value inputs to the host.

 

When a 1:N NT Link is being used, up to

 

8 PTs can be connected to a single PC.

Bar code reader (page 37)

Recommended printers (page 36)

It is also possible to use printers that can emulate an NEC PC-PR201H (using the NEC PC-PR201PL control protocol), and printers that comply with one of the following EPSON control standards: ESC/P 24-J83C (color), or ESC/P 24-J82 (monochrome).

Memory unit (pages 39 and 47) NT-MF261 (made by OMRON)

Support Tool (page 35)

NT-series Support Tool Version 4.0 for Windows (Made by OMRON)

NT-ZJCAT1-EV4 (CD-ROM version)

System installer (page 35)

System installer (made by OMRON)

The system installer is supplied as a standard accessory with the Support

Tool (NTZJCAT1-EV4).

16

Communications with the Host

Section 1-4

 

 

 

 

Reference: The following optional devices are available. All of them can be used either with

 

NT31 or NT31C.

 

 

 

Replacement backlight

NT31C-CFL01

 

Reflection-suppressing protective sheet NT30-KBA04

 

Chemical-resistant cover

NT30-KBA01

 

Replacement battery

3G2A9-BAT08

 

 

 

 

1-3-2 Connecting to the Host

The NT31/NT31C has the following two communication ports.

Serial port A:

D-SUB 9-pin connector

For RS-232C use only (The Support Tool and bar code readers can be connected here.)

Serial port B:

D-SUB 25-pin connector

For RS-232C or RS-422A/485 (Selectable by memory switch)

(The Support Tool and bar code readers cannot be connected here.) The host can be connected at either of these two ports.

The connection methods for each communication method at the PT and host sides are indicated below. Make the settings in accordance with the communication method that can be used with the PC to be connected and the conditions at the operation site.

Reference: When using an RS-232C/422A convertor unit (NT-AL001) with the host link or NT link (1:1) communication method, RS-485 cannot be used. The connection must be made with RS-232C or RS-422A.

1-4 Communications with the Host

The NT31/NT31C is connected to the host by one of the following communication methods.

The following communications can be used to connect an OMRON PC:

Host link

1:1 NT Link

1:N NT Link (standard or high-speed)

The following communications can be used to connect another companies’ PC or FA computer:

Communications protocol supported by the other company’s PC

Memory link

In all of these communication methods that can be used with NT31/NT31C, data communication with host is by direct connection (Memory link is, however, a quasi-direct connection).

In the following, the host link and NT link that carry out the direct connection will be discussed. Memory links will be explained in 1-5 Communications Using Memory Links.

1-4-1 Direct Connection Function

With the NT31/NT31C, the bits and words referring to data required for display, and those for storing input data, can be allocated to any part of the PC memory area.

17

Communications with the Host

Section 1-4

Features of the Direct

Connection Function

1-4-2 Host Link

1-4-3 NT Link

The NT31/NT31C can directly write to and read from such allocated bits and words to change the display status of the elements on the PT screen, control the PT operating status, and notify statuses to the host.

This function, which directly reads and writes the statuses of words and bits without using a PC program is called the direct connection function.

The words and bits allocated for direct connection are called the allocated words and allocated bits.

The direct connection function allows the data to be displayed at the NT31/NT31C to be read from the memory area in the PC and written to memory tables in the NT31/NT31C. Also, the data input at the NT31/NT31C can be written to the memory area in the PC. The NT31/NT31C screen can be changed in accordance with statuses in the PC memory area, and the NT31/NT31C’s status data can be written to the PC’s memory area.

NT31/NT31C

 

PC

 

 

 

DM area

 

I/O relay area

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Auxiliary relay area Timers/counters

The direct connection function has the following features.

The bits and words referring to operating status and work instruction information and those for storing input data can be freely allocated to almost any area of the PC memory.

Since the NT31/NT31C can directly refer to PC bit and word data without using the program at the PC, it can be connected to the PC without changing the PC program which controls the currently running production line.

The area to control and notify the NT31/NT31C statuses, including display screens, display/no display status, and buzzer output, can be freely allocated to any part of the PC data area. This means that the PC status can be read and controlled just by reading this area at the PC side, without preparing a special communication program.

The direct connection function allows the NT31/NT31C to directly read and write almost all bits and words in the PC and to automatically change the NT31/NT31C screen display. This function can reduce the load on the PC so that its program development efficiency is improved.

The host is connected to a PT in a 1:1 connection, and the words and bits of the host are read and displayed by host link communication. This method can be used for connection to the majority of PC types.

NT link is a method for high-speed communication with a PC using the direct connection function. The PCs that can be connected with the NT link are as follows.

When using the built-in host link function of a CPU unit or SRM1:

CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HS, C200HX/HG/HE(-Z)E, CS1G/CS1H-E(V1), CVM1/CV-series PC (-EV1 or later version), SRM1

Besides the 1:1 NT Link method, in which one PC is connected to one PT, the NT31/NT31C can also use the 1:N connection NT Link method, which allows a maximum of eight PTs to be connected to one PC port.

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