Omron NT11 - 01-2004 User manual

USER’S MANUAL
Cat. No. V084-E1-01
NT11
Programmable Terminal

NT11
Programmable Terminal
User’s Manual
Produced January 2004

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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 “PLC” means Programmable Controller. “PC” is used, however, in some Program-
ming Device displays to mean Programmable Controller.
“Host” means a personal computer that controls the NT11.
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 opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
ÓOMRON, 2004
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
r
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
f
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con-
stantly 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.

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vii
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
SECTION 1
Functions of the NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Getting Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Role and Operation of NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-3 Functions of NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-4 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-5 Direct Connection Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1-6 Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SECTION 2
Hardware Settings and Connections. . . . . . . . . . . . . . . . . . . 15
2-1 Description of Parts and Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2-3 Connecting to the NT Support Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2-4 Connection to a PLC by the Host Link (RS-232C Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2-5 Connection to a PLC by the Host Link (RS-422A Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2-6 Connection to a PLC by the NT Link (RS-232C Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2-7 Connection to a PLC by the NT Link (RS-422A Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
2-8 Connecting a Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
SECTION 3
System Menu Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
3-1 Operation Flow by the System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-2 Starting the NT11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-3 Operation Modes and the System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
3-4 Initializing Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3-5 Transferring the System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
3-6 Registering the Screen Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
3-7 Setting the Conditions of Communications with the PLC by Using the Memory Switches. 71
3-8 Starting the Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3-9 Backlight OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3-10 System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

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TABLE OF CONTENTS
SECTION 4
NT11 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4-1 Outline of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4-2 Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
4-3 Areas for Control/Notification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
4-4 Memory Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4-5 Bar Graphs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4-6 Numeral Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
4-7 Menu Screen Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
4-8 Password Screen Display Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
4-9 Display History Screen Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
4-10 Daily Report/Display History Printing Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
SECTION 5
Using Host Link/NT Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5-1 Screen Creation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
5-2 Outline of Host Link/NT Link Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
5-3 Memory Table Entries and Bar Graph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
5-4 Numeral Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5-5 NT11 Status Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5-6 Notification of the Operating Status to the PLC (Determining the NT11 Operating Status) 132
SECTION 6
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 135
6-1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
6-2 Responding to Displayed Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
6-3 Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Appendices
A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
B Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
C Transporting and Storing the NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
D Making the Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
E Making the Cable for Connecting a Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
F NT11 Internal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
G Model List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
H Special Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

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About this Manual:
This manual describes the basic functions and operation procedures of the NT-series programmable
terminal NT11, its operations when connected to a PLC, 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 NT-series programmable terminal NT11.
Section 1 describes the operation functions, system configuration, and the direct connection function
of the NT11.
Section 2 describes the hardware settings, installation to an operation panel, connection to optional
devices and PLC.
Section 3 describes the operation of the System Menu and the maintenance of the NT11.
Section 4 describes the functions of the NT11 when it is connected to a PLC.
Section 5 describes how to use the NT11 when it is connected to the PLC using the host link or NT
link.
Section 6 describes the procedures to follow when the NT11 does not operate correctly.
APPENDIX describes the specifications and the method for making connecting cables, and includes
an area list for the PLC.
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal 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 and Their Contents:
The related manuals are listed below.
The @symbol at the end of the manual number is the revision history symbol.
[Operating the programmable terminal and communicating with the host]
• NT11 Programmable Terminal User’s Manual (V084-E1-@)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - -- - - -- - - - - This manual
This user’s manual is the manual for the NT11-V@itself.
The NT11 is a unit which integrates a programmable terminal body. This user’s manual describes the
functions and handling of the programmable terminal body.
[Creating and transferring screen data]
• NT-series Support Tool Operation Manual (V061-E1-@)
The screens displayed on the NT11 are created with the support tool and transferred to the NT11.
This manual describes how to create and transfer screen data.

xi
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

xii
Intended Audience 1
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 specifica-
tions described in the user’s manuals.
Before using the product under conditions that are not described in the man-
ual or applying the product to nuclear control systems, railroad systems, avia-
tion 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 con-
sult with your OMRON representative before applying Programmable Termi-
nals 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
Read these safety precautions carefully and make sure you understand them
before using the Programmable Terminal so that you can use it safely and cor-
rectly.
Safety Conventions and
their Meanings
This user’s manual uses the following conventions and symbols to indicate
cautions, warnings, and dangers in order to ensure safe use of the NT11.
The cautions, warnings, and dangers shown here contain important informa-
tion related to safety. The instructions in these cautions, warnings, and dan-
gers must be observed.
The conventions used and their meanings are presented below.
!WARNING Indicates information that, if not heeded, could possibly result in loss of life or
serious injury.

xiii
Safety Precautions 3
Caution Indicates information that, if not heeded, could result in relatively serious or mi-
nor injury, damage to the product, or faulty operation.
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.

xiv
Safety Precautions 3

1
SECTION 1
Functions of the NT11
NT11 is a new programmable terminal (PT) which incorporates a host interface unit in a programmable terminal body. It
can be easily installed and used.
This section gives the operation examples and characteristics of the NT11 so that you will understand the applications of
the NT11.
1-1 Getting Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Role and Operation of NT11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2-1 Operations of NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-3 Functions of NT11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-3-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-3-2 Principal Functions of NT11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1-3-3 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-3-4 System Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-4 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-4-1 Peripheral Devices That Can Be Connected. . . . . . . . . . . . . . . . . . . 8
1-5 Direct Connection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-5-1 NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-5-2 Functions of the Allocated Bits and Words . . . . . . . . . . . . . . . . . . . 10
1-6 Before Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2
Getting Starting Section 1-1
1-1 Getting Starting
To ensure that the NT11 works correctly, carefully observe the following when
installing and handling it.
Location Do not install the NT11 in a location subject to the following conditions;
• Near a computer, radio transmitter or receiver, etc.
• Dust, chemicals, or steam
• Severe temperature fluctuations
• High humidity and condensation
• Strong electrical or magnetic fields
• Poor ventilation
• Severe vibration
Handling Do not;
• Subject the NT11 to strong shocks or vibrations
• Put heavy objects on the NT11
• Supply a voltage different from the specified voltage
• Disassemble or modify the NT11
Cautions on Cleaning To clean the front panel, use a soft, dry cloth. If it is very dirty, use diluted (2%)
neutral detergent.
Do not use volatile solvents such as benzene, thinner, or a chemically treated
cloth. Their use will cause deformation or discoloration.
Cautions on Afterimage If the same screen contents are kept displayed for a long time, an afterimage
may occur. To prevent this problem, either set the afterimage prevention func-
tion or make a program which periodically changes the displayed screen.
Cautions on Operating the System Keys
Do not operate the system keys with sharply pointed objects, such as your fin-
gernails or a screwdriver.
This could break the film.
1-2 Role and Operation of NT11
NT11 is a programmable terminal used to display and transmit the information
in an FA site. The following gives a general description of the role and opera-
tion of the NT11 for those who use a programmable terminal (PT) for the first
time.
Production Line Status Monitoring
The NT11 displays real-time information about the system and equipment
operating status, etc.
Line 1 Status
Machine:NT11-SF121
Product: 137 units
75%

3
Role and Operation of NT11 Section 1-2
Messages The NT11 warns of system or equipment failures and prompts the appropriate
remedial action.
Panel Switch Functions The NT11 can be used in place of external data input equipment such as an
operation panel, to transmit data to a PLC.
1-2-1 Operations of NT11
Displays Screens The information to be displayed (screen data) can be created on a computer
by using support tools and stored in the NT11. The screen data can be dis-
played on the NT11 in response to the instructions from a PLC or system keys
operation.
Receives Data from a PLC NT11 can be connected to a PLC by a host link or NT link and receive neces-
sary data from the PLC.
Sends Data to a PLC Data input through a numeric key can be sent to a PLC.
Assembly line B
Positioning pin
Alarm
Positioning
Z-AXIS 80 point
X-AXIS 100 point
Y-AXIS 150 point
The screen data designated by
instructions from PLC or System
keys operation is displayed.
PLC
PLC
OMRON's PLC
Host link, NT link
PLC
ON/OFF information,
numeric data, etc.
Numeric keys

4
Functions of NT11 Section 1-3
Screen Data The screen data to be displayed on the NT11 can be created by a computer
by using support tools. Connect the NT11 to an IBM PC/AT or compatible with
an RS-232C cable so that the screen data are transferred to the NT11.
1-3 Functions of NT11
The NT11 has the following features and functions;
1-3-1 Features
Downsized Body • The NT11 has the thinnest depth (31 mm or less in the panel) in the NT
series.
• It is very compact, with a width of 218 mm and a height of 113 mm.
• Features three ports: for RS-232C, RS-422A, and printer output.
• The tool connectors and the PLC communication connectors are used in
common.
Construction Best Suited to the FA Environment
• Easy-to-read screen even in direct sunlight.
• Waterproofed to a standard equivalent to IP65 and NEMA4.
A Host I/F Unit, Screen Data Memory, and a system program transfer ROM are All Incorporated
• There is no complicated installation work except a simple connection to a
PLC.
• A flash memory is used for the screen data memory. There is no need of
backup battery.
• A host link (direct), and an NT link are standard equipment.
This connection is made only to
transmit the screen data by using
NT11 and tools.
Create screen data.
PC/AT
(support tools)
Screen data
RS-232C
Wide angle of visibility ±20°
160 dots
64 dots

5
Functions of NT11 Section 1-3
1-3-2 Principal Functions of NT11
Functions Related to the Data Display
• Character display
• Memory data display
• Bar graph display
Bar graphs corresponding to the contents of the numeral table can be displayed.
Other Functions
• Communications with a PLC
The host link, NT link is used to connect to a PLC for data communication.
• System function
• Screen data creation
Functions Related to the Data Input
• Input by the system key
• Numeric setting function
The screen data can be created by using support tools on the computer
and stored in the unit.
The system setting and maintenance can be executed by using the
System Menu on the screen.
The numeric values can be input at the operation
site by the system key and sent to the PLC.
Data can be input, and the displayed screen
changed, by using the numeric keys, function keys,
and arrow keys on the panel of the NT11.
Contents of the character-string memory table and the numeral memory table can be
displayed. The memory table contents can be changed from the PLC.
Characters of standard and double-width can be displayed. Characters can flash or be
highlighted.

6
Functions of NT11 Section 1-3
1-3-3 Displays
The NT11 can display elements such as characters, numeric value, and bar
graphs on a screen. The screen data displayed on the NT11 are created by
using support tools on a computer.
Characters (text) Characters and marks which do not need to be changed can be written
directly to the screen.
Characters (character-string memory table)
Character-strings stored in the character-string memory table are displayed.
The display characters can be changed by changing the data stored in the
character-string memory table.
Numeric Values (numeral memory table)
Numbers stored in the numeral memory table are displayed. The display num-
bers can be changed by changing the data stored in the numeral table. Hexa-
decimal values can also be displayed.
Bar Graphs The bar graph extends and contracts in proportion to the data stored in the
numeral memory table. A percentage value can also be displayed simulta-
neously.
Marks Marks can be designed, created, and handled like characters by the user.
Comparison with the NT11S
* Emergency transfer mode: When power to the NT11 is turned ON with DIP
switch pin 3 turned ON, data transfer mode will be entered directly without
any other operation.
Line 1 Status
Machine:NT11-SF121
Product:137 units
75%
Numeric value
(Numeral table)
Characters (text)
Characters
(character string)
Bar graph
Model NT11 NT11S
Basic performance Dimensions 218 x 113 x 38.2 mm (W x H x D)
Resolution 160 x 64 dots (4.24 inches)
Effective display area 100 x 40 mm
Display color Black & white (with yellow mode)
Panel cut-out size (W x H) 204.2 x 98.8 mm
Max. number of registered screens 250
Screen data capacity 32 KB
Function keys 4
Other Keys Numeric Keys, Cursor Keys, Function Keys
Special functions Emergency transfer mode* DIP switch pin 3 None
Backlight service life 50,000 hours min. 10,000 hours min.
Communications Host Link Speed Up to 115,200 9,600/19,200
Compatibility (Screen data types that can
be used.) NT11-V1, NT11S NT11S

7
Functions of NT11 Section 1-3
1-3-4 System Keys
The NT11 has system keys on its panel for input functions.
The system keys are used for inputting numerical values and for notifications
to the PLC.
The system keys can be classified into the three types shown below.
- Numeric keys
- Arrow keys
- Function keys
• Numeric keys
These are the numeral keys from [0] to [9], the decimal point key [.], the
sign key [+/–], the [CLR] key and the [ENTER] key. These keys are used
for inputting numerical values.
• Arrow keys
Used to select the required numerical value input field when there is more
than one on the screen.
• Function keys
Used for notifications from the NT11 to the PLC.
Also used to switch between the RUN mode and the system menu when
the power is switched on.
!Caution Do not use input functions such as PT function keys for applications where
danger to human life or serious property damage is possible, or as the emer-
gency stop switch.
!Caution If function keys are pressed in rapid succession, their inputs may not be suc-
cessfully received. Confirm that the input of a function key has been success-
fully received before moving on to the next operation.
!Caution Do not press function keys carelessly while the backlight is off or while nothing
is displayed on the screen. Otherwise the system may operate unpredictably.
Only press function keys after confirming system safety.
Screen display
Numeric keys
Arrow keys
Function keys
NT11