Omron NT31C Series User manual

NT31, NT31C, NT631, and NT631C
Programmable Terminals
Reference Manual
Revised June 2001

1
No. 6182
OMRON Corporation
Please read and understand this manual before using the product. Please consult your OMRON
representative if you have any questions or comments.
Read and Understand this Manual
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-
INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

2
No. 6182
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED
FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.

No. 6182
3
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be changed
without any notice. When in doubt, special model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does
not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

iv

!
!
!
v
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 dam-
age 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 any-
thing 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 ef ficient 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 permis-
sion 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 informa-
tion contained in this publication.

vi

TABLE OF CONTENTS
vii
SECTION 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 Role and Operation of the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Functions of the NT31/NT31C and NT631/NT631C . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Communications with the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5 Communication by Using Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6 Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
PT Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1 PT Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Areas for Control/Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Memory Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Fixed Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 Image and Library Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-6 Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-7 Touch Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-8 Numeral Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9 Character String Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-10 Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-11 Alarm List, Alarm History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-12 Inputting Numeric Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-13 Inputting Character Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-14 Recipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-15 Window Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-16 Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-17 Device Monitor Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-18 Mathematical Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-19 PT Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
How to Use the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Screen Creation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Buzzer, Backlight, and Display Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Screen Display and Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Display and Control of Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 Changing Numeral and Character String Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Display of Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7 Input of Numeric Values and Character Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8 Using the Alarm List/History Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9 Using the Display History Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-10 Display and Setting of Calendar Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-11 Printing Data and Checking the Printer Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-12 Enabling/Disabling PT Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Using Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Operation of the Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Outline of Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3 Commands/Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4 Memory Link Online Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE OF CONTENTS
viii
SECTION 5
Function Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Examples of Actual Applications of Direct Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Examples of Actual Applications of Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . .
6-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Responding to Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Compatibility with Screen Data of Other PT Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C NT30/620 Compatible Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D PC Memory Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E Keycode Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ix
About this Manual:
This manual describes the basic functions and operation procedures of the NT-series NT31, NT31C,
NT631, and NT631C Programmable T erminals, their operations when connected to a PC (Programmable
Controller) or other host, and 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 describes the functions of the PT.
Section 2 gives basic information on the method for connecting to the host and communication methods,
and describes the names and functions of the parts of the PT.
Section 3 how to use the functions provided by the PT.
Section 4 gives an overview of memory link operations and contains explanations centered on commu -
nications between the PT and host when using memory link.
Section 5 presents a collection of simple practical examples that will give you hints on how to make best
use of the functions of the PT.
Section 6 describes the action to take when PT errors occur.
The Appendices provide the specifications, compatibility with screen data of other PT models, NT30/620
emulation mode, PC memory maps, and keycode tables.
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.
!

x
Related Manuals:
Related manuals are listed below.
The jsymbol at the end of the catalog number is the revision number.
Connecting and Setting Up the Programmable Terminal
SNT31 and NT31C PT Setup Manual (V062-E1-j)
SNT631 and NT631C PT Setup Manual (V063-E1-j)
These manuals are used separately for the dif ferent models of PT . They describe
connecting the Programmable Terminals to a host and peripheral devices and
settings required for communications and applications.
The
functions and actual operating messages for the NT31, NT31C, NT631, and
NT631C PTs are provided in the Reference Manual (V064-E1-j).
Programmable Terminal Functions and Operation
SNT31/31C/631/631C PT Reference Manual (V064-E1-j, this manual)
This manual is used for any of the following PTs: NT31, NT31C, NT631, and
NT631C. It describes screen configurations, part functions, host control meth-
ods, and other application information.
PT connection and setup procedures are described in the NT31 and NT31C PT
Setup Manual (V062-E1-j) and the NT631 and NT631C PT Setup Manual
(V063-E1-j).
Creating and Transferring Screen Data, and Installing the System Program
SNT-series Support T ool for Windows V er . 4.1 Operation Manual (V061-E1- j)
The screens displayed on the NT31, NT31C, NT631, and NT631C PTs are
created with the Support T ool and transferred to the PT . This manual describes
how to create and transfer screen data. It also describes how to download a sys -
tem 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
SPC Connection Manual (V042-E1-j)
The
NT31, NT31C, NT631, and NT631C PT s can be connected to controllers in
the following series: Mitsubishi’ s A Series and FX Series. This manual describes
the connection and setup methods for these controllers.
The
NT -series Support T ool for Windows V ersion 4.1 is required to connect the
NT31, NT31C, NT631, and NT631C PTs to Mitsubishi controllers.

1
SECTION 1
General
This section provides fundamental information about the functions and features of the PT s, types of connection, communica -
tion methods, etc. This information will enable you to understand the applications of the PTs.
1-1 Role and Operation of the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-1 Operation of a PT at an FA Production Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-2 Operations of the PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Functions of the NT31/NT31C and NT631/NT631C . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-2 Comparison between NT31, NT31C, NT631, and NT631C . . . . . . . . . . . . . . . . .
1-2-3 Additional Functions of the V2 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-4 Comparisons with Earlier Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-5 Principal Functions of NT31/NT31C and NT631/NT631C . . . . . . . . . . . . . . . . .
1-2-6 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1
Peripheral Devices That Can Be Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2
Connecting to the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
Communications with the Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-1 Direct Connection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-2 Host Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-3 NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-4 Functions of the Allocated Bits and W ords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4-5 Connecting to other Companies’ PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5 Communication by Using Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5-1 Memory Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5-2 Comparison between Direct Connection and Memory Link . . . . . . . . . . . . . . . . .
1-5-3 Memory Link Online Transfer Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6 Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1SectionRole and Operation of the PT
2
1-1 Role and Operation of the PT
The NT31, NT31C, NT631, and NT631C are sophisticated display units (Pro-
grammable
T erminals) which automatically display information and can also be
used for operations when necessary . The following gives a general description
of the role and operation of the PT for those using a Programmable Terminal
(PT) for the first time.
1-1-1 Operation of a PT at an FA Production Site
The PT displays real-time information about the system and equipment operat -
ing status, etc. Its power of expression is enhanced by graphs and other visuals,
making the displays easy to understand.
Production Control (3)
Product
% achieved
Today’s target 560 441
Current production 305 275
Number defective 2 8
Number repaired 7 15
The PT warns of system or equipment failures and prompts the appropriate re -
medial 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
Setting touch switches on the PT allows workers to use the PT as an operating
panel; the results of the operations are transmitted to the host.
Electroplating control
Transport Electr.
head Wash. head Corr. prv.
head
Clamp
Unclamp
Int. stop
Adv.
Rev.
Electro-
lyte Wash Corr.
prv.fluid
Production Line Status
Monitoring
Directions to Workers on
the Shop Floor
Panel Switch Functions

1-1SectionRole and Operation of the PT
3
1-1-2 Operations of the PT
The information to be displayed (screen data) can be created on a computer us -
ing the Support Tool and stored in the PT . The screen data can be displayed on
the PT 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.
The PT can be connected to the host by a host link or NT Link and receive neces -
sary 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.
Touch panel
Host
ON/OFF information, numeric
data, etc.
The screen data to be displayed on the PT can be created on a personal comput -
er using the Support Tool. Connect the PT to the personal computer with an
RS-232C cable and transmit the screen data to the PT.
Create screen data.
Personal
computer
(Support Tool)
Screen data
RS-232C
When the host is connected at serial port A,
the personal computer is only connected
when communicating screen data between
the PT and Support Tool.
Displays Screens
Receives Data from a
Host
Sends Data to a Host
Screen Data

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
4
1-2 Functions of the NT31/NT31C and NT631/NT631C
The NT31/NT31C and NT631/NT631C have the following features.
1-2-1 Features
Slim Construction •The PT is slimmer but retains the same functions. The depth is 50 mm max.
when mounted in a panel with the recommended thickness (1.6 to 4.8 mm.)
•The
communication cable connectors are housed in the unit so that they do not
protrude from the unit.
Ideal Construction for an FA Environment
•NT31-ST121j-EV2: STN monochrome LCD type with backlight
•NT31C-ST141j-EV2: STN color LCD type with backlight
•NT631-ST211j-EV2: High-contrast EL display
•NT631C-ST141j-EV2: STN color LCD type with backlight
•NT631C-ST151j-EV2: TFT color bright LCD type with backlight
•The backlight unit and battery can be replaced onsite.
•Waterproofing meets NEMA4 and IP65F standards. (The panel can not be
used in some IP65F environments requiring long-term exposure to oil.)
320 dots
240 dots
Wide angle of visibility
NT31/NT31C NT631/NT631C
640
dots
480 dots
Contrast and brightness are adjustable by touch switch operations. (This feature
is not available on the NT631 and NT631C-ST151j-EV2.)
Compatibility with Other PTs •There is upward compatibility between the following models for screen data
and
user programs: NT20S, NT30, NT30C, NT600S, NT31, NT31C NT610G,
NT610C, NT620S, NT620C, NT625C, NT631, NT631C. (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, refer to Appendix B Compatibility with Screen
Data of Other PT Models (page 445) and the Support Tool manual.)
•The
panel cut-out dimensions for the NT31/NT31C are the same as the dimen -
sions for the NT30/NT30C and the panel cut-out dimensions for the
NT631/NT631C are the same as the dimensions for the NT625C.
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 or
NT631/NT631C makes it easy to write screen data into the PT onsite. This en -
ables a rapid response to setup changes.
Touch Switch Operation

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
5
•The NT31/NT31C and NT631/NT631C can store a system program into a
memory unit. This enables the system to handle more flexible setups.
Screen data can be checked simply by operations in the NT31/NT31C or
NT631/NT631C 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 consid -
erably increased, making it possible to create more expressive screens. For de -
tails, refer to Display Restrictions (page 425).
It
is now possible to write binary data stored in words at the host directly to the PT .
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 ZJCA T1-EV4 Support T ool, the
system program at the NT31/NT31C or NT631/NT631C can be changed easily
from a personal computer.
The PTs meet UL/CSA standards and EC directives.
Compatible with the Mitsubishi A-series (Calculator Link) and FX-series (Pro-
gramming Console) Sequencers. Specialized system programs can be installed
that allow the NT31/NT31C or NT631/NT631C to be controlled from other com -
panies’ Sequencers.
Up to 3 windows can be displayed simultaneously in the normal display. 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, NT31C, NT631, and NT631C
Two models are available: the monochrome NT31 and the 8-color NT31C. The
differences between the NT31 and NT31C are shown in the following table.
Item NT31 NT31C
Front panel
color NT31-ST121-EV2 (Beige) NT31-ST121B-EV2 (Black) NT31C-ST141-EV2 (Beige) NT31C-ST141B-EV2 (Black)
Display STN monochrome LCD
(with white backlight) STN color LCD (with white backlight)
Note Beige and black are the front panel colors of each NT31/NT31C type.
Two NT631 models are available: the NT631 has a monochrome (yellow EL)
display and the NT631C has an 8-color display. The differences between the
NT631 and NT631C are shown in the following table.
Item NT631-ST211j-EV2 NT631C-ST141j-EV2 NT631C-ST151j-EV2
Front panel
color NT631-ST211-EV2 (Beige) NT631-ST211B-EV2 (Black) NT631C-ST141-EV2 (Beige) NT631C-ST141B-EV2 (Black) NT631C-ST151-EV2 (Beige) NT631C-ST151B-EV2 (Black)
Display Monochrome EL display STN color LCD (with white backlight) Bright TFT color LCD (with white
backlight)
Note Beige and black are the front panel colors of each NT631/NT631C type.
Screen Data Check
Function
Increased Screen Data
Capacity (NT31/NT31C)
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 Upgrades
Complies with
International Standards
Compatible with Other
Vendors’ Devices
Multiple Windows
NT31/NT31C
NT631/NT631C

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
6
1-2-3 Additional Functions of the V2 Versions
The V2 versions of NT31/NT31C and NT631/NT631C are supplemented and
enhanced by the following functions.
The
V2 versions are compatible with the high-speed 1:N NT Link as well as the
earlier standard 1:N NT Link.
Operands (values referenced by equations) can be registered to allow the PT to
perform calculations automatically and write the results of those calculations to
numeral memory tables or words in the host.
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 PVs of several
words can be listed with the device monitor.
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.
The following displays can be performed with lamp or touch switch guide charac -
ters:
•Display several lines of guide characters.
•Switch the display between different guide characters when OFF and ON.
•Display the numeral memory table contents as guide characters.
•Display the string memory table contents as guide characters.
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 NT30/620 Compatible Mode 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) through a 1:N NT Link
with the CS1 PC. (These areas cannot be accessed through a Host Link connec -
tion.)
All banks in the EM Area, timer completion flags (TU), counter completion
flags (CU), Work Area (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., PLC 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.
You can display the brightness and contrast adjustment screen using either the
touch switch or commands from the host, even while the PT is in operation.
High-speed 1:N NT Link
Additional Mathematical
Functions
Device Monitor Function
Interlock Function
Improved Lamp/Touch
Switch Guide Characters
NT30/NT30C and
NT620S/NT620C/NT625C
Compatible
Additional CS1 Data
Areas Accessible
Recipe Function
Adjusting Contrast and
Brightness During PT
Operation

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
7
1-2-4 Comparisons with Earlier Models
Comparison between NT30/NT30C and NT31/NT31C
Item NT30/NT30C NT31/NT31C
Compatible Support Tool(s) 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
screen data transfer. - Serial port A connector (also used 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
(including system installer) The system installer and system program data are supplied with the
Support Tool.
High-speed 1:N NT Link Not possible Possible1
Memory
Li k
System program Exclusive use by Memory Link Same as OMRON connection
y
Link 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 2,000 max. 3,999 max.
Screen data capacity*2
(User program memory) 512 KB 1 MB
Numeral string data 1,000 max. 2,000 max.
Character string data 1,000 max. 2,000 max.
Bit data 256 1,000 max.
Mathematical table None 256 max.
Calculations can be executed
automatically in the PT.*1
Image data 224 max. 4,095 max.*3
Library data 896 max. 12,288 max.*3
Method for storing numeric values
(numeral memory data and PT status
control area)
Fixed as BCD (binary coded decimal) Selectable from BCD (binary coded
decimal) or binary
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 words*4
Registering continuous screen Possible Not possible (Use a screen switchover
as a substitute.)
Lamp/Touch switch guide characters 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

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
8
Item NT31/NT31CNT30/NT30C
Recipe function None Possible*1
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 Area (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 Vjversions of the NT31/NT31C.
*5: These data areas are accessible only when the PT is connected to the CS1 PC in a 1:N NT Link. (They are not
accessible through host link communications.)
For dif ferences in programming, refer to Appendix B Compatibility with Screen
Data of Other PT Models on page 429.
Differences between the NT620S/NT620C/NT625C and NT631/NT631C
Item NT620S/NT620C/NT625C NT631/NT631C
Compatible Support Tool(s) NT-ZJCAT1-EV4 or
NT-ZA3AT-EV2 NT-ZJCAT1-EV4
DIP switches On rear of unit None (software settings)
Use of memory unit Not possible Possible
RS-232C interface Connector (9-pin) also used as port for
screen data transfer. - Serial port A connector (also used for screen data transfer, 9-pin)
- Serial port B connector (for host
communications only, 25-pin)
RS-422A/485 interface NT620S/NT620C: None
NT625C: Terminal block (Select
RS-232C or RS-422A/485 with the DIP
switch.)
Terminal block (A memory switch can
set the RS-232C connector as serial
port B.)
Replacement backlight NT620C-CFL01 (NT620C)
NT610C-CFL02 (NT625C) NT631C-CFL01 (for ST151) NT631C-CFL02 (for ST141)
NT631/NT631C system program
data NT620-ZS3PC/ZS3DV-EV1 (including system installer) The system installer and system program data are supplied with the
Support Tool.
High-speed 1:N NT Link Not possible Possible*1
Memory
Li k
System program Exclusive use by Memory Link Same as OMRON connection
y
Link Screen data Shared with OMRON connection Exclusive use by Memory Link
LCD contrast adjustment By a control on the rear of the unit Adjustable with touch panel operation.
(NT631-ST141j-V2 only)
Backlight brightness adjustment Not possible Adjustable with touch panel operation.
(NT631-ST141j-V2 only)
Number of user-registered screens 2,000 max. 3,999 max.
Screen data capacity*2
(User program memory) NT620S: 512 KB
NT620C/NT625C: 1 MB 1 MB
Numeral string data 1,000 max. 2,000 max.
Character string data 1,000 max. 2,000 max.
Bit data 256 1,000 max.
Mathematical table None 256 max.
Calculations can be executed
automatically in the PT.*1

1-2SectionFunctions of the NT31/NT31C and NT631/NT631C
9
Item NT631/NT631CNT620S/NT620C/NT625C
Image data 224 max. 4,095 max.*3
Library data 896 max. 12,288 max.*3
Method for storing numeric values
(numeral memory data and PT
status control area)
Fixed as BCD (binary coded decimal) Selectable from BCD (binary coded
decimal) or binary
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 words*4
Registering continuous screen Possible Not possible (Use a screen switchover
as a substitute.)
Lamp/Touch switch guide
characters 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
Recipe function None Possible*1
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 Area (WR)
- Task flags (TK)
- HR Area
*1: These functions are available only in V2 versions of the NT631/NT631C.
*2: This is the capacity of the flash memory that stores screen data.
*3: The values are the same as the NT620S/620C/NT625C when the PT is in NT30/620 compatible mode.
*4: The window control area can be used only in the Vjversions of the NT631/NT631C.
*5: These data areas are accessible only when the PT is connected to the CS1 PC in a 1:N NT Link. (They are not
accessible through host link communications.)
For dif ferences in programming, refer to Appendix B Compatibility with Screen
Data of Other PT Models on page 429.