Small Size, Large Screen

The LCD screen is larger than the OMRON NT20S

(increased from 256 x 128 dots to 260 x 140 dots), but the

external dimensions and panel cut-out size are the same.

Two RS-232C Ports

Two RS-232C ports in the NT21 (compared with one in the

NT20S) enable simultaneous connection of a PLC, Bar

Code Reader, and NT Support Tool (connectable to serial

port A only).

Plenty of Capacity for Saving Graphic Screens

With 512 Kbytes of memory

capacity, there is more than

ample space for storing screen

data.

Versatile Communications

In addition to the Host Link and 1:1 NT Link

communications, the NT21 supports high-speed 1:N NT

Links and Memory Link communications.

4

5

Versatile I/O and Large-capacity

Screen Memory in a Space-saving Size

Versatile I/O and Large-capacity

Screen Memory in a Space-saving Size

Upgraded NT Support Tool Version (-

EV4.7)

Upgraded NT Support Tool Version (-

EV4.7)

Function Support Equivalent to That

of a Mid-size Operator Interface

Function Support Equivalent to That

of a Mid-size Operator Interface

Highly Reliable Hardware

Highly Reliable Hardware

Larger

screen

NT Support Tool

(screen creation/transfer)

RS-232C

NT21

RS-232C

PLC (host)

High-speed

1:N NT Links

RS-232C

Memory

Link

Personal

computer

(host)

RS-232C

PLC (host)

Abundant

graphic screen

storage

NT21

NT21

Long, Maintenance-Free Life (50,000 h)

The NT21 conforms to the EC Directives, as well as UL,

cULus (Class 1 Div2), and C-Tick.

The front panel has an enclosure rating equivalent to IP65F.

Conforms to International Standards

System and screen data can be stored in

NT21 Flash Memory.

Recipe Function

*C500-BAT08 Battery

(sold separately) required.

Alarm List/History(*)

Parts tables on the PT

screen can be used to set

multiple word data in

records, which can then

be written to the PLC by a

simple PT touch panel operation. For example, the setting

parameters for separate models can be edited on the PT,

then written to or read from the PLC.

An alarm message can be

displayed in response to

PLC bit status, and the

content and time of the

message can be stored as

an alarm history.

RS-232C

PLC (host)

The NT21 is equipped with many of the same functions as

the SYSMAC PLC Programming Console.

Programming Console Function

Up to 256 math equations can be stored in the PT

processing table to allow automatic PT processing, and

the results can be written to the numeral memory table or

other destinations. This makes it possible to perform

scaling and other mathematical operations automatically

in the PT.

Mathematical Functions

NT21

Programming Console

function

•I/O comments in the I/O tables of the CX-Programmer can

be used directly.

Enhanced Editing Functions

I/O comments for designated PLC addresses can be

used directly, with no need for CSV file conversion.

NT Support Tool

CX-Programmer

CX-Server

I/O comment data

•Symbol Manager previews

are supported.

This function makes it

possible to preview symbols

(parts created from graphics

data).

•Parts can be copied by drag &

drop operations of image,

library, or mark data.

•The properties of grouped

parts can be edited without

having to ungroup them.

•Because NT20S and NT31

screen data is compatible

with the NT21, existing software assets can be utilized

to greatly reduce the number of design steps.

Note: Some data revisions may be required due to size differences.

•Windows XP supported.

Model

NT21

NT11

NT11S

NT20S

Basic

performance

Display

elements

Special

functions

Communications

Dimensions

190 x 110 x 53.5 mm (H x W x D)

218 x 113 x 38.2 mm (H x W x D)

Resolution

Effective display area

260 x 140 dots

(5.2 inches)

256 x 128 dots

(4.91 inches)

117 x 63 mm

112 x 56 mm

500

Display color

Black & white (with blue mode)

Panel cut-out size (W x H)

178.5 x 100.5 mm

Max. number of

registered screens

3,999

96 KB

Screen data capacity

512 KB

None

Function keys

None

None

None

None

None

None

Other Keys

Rectangles, polygons,

arcs, sectors

Painting out

Image/library displays

256 positions per screen

Analog meters

50 positions per screen

None

Trend graphs

1 position per screen

None

Broken line graphs

1 position per screen

None

Alarm lists/histories

4 positions per screen

None

Recipes

1 position per screen

None

Interlocks

Supported

None

Mathematical

Function

Math equations: Max. 256

(arithmetic functions,

logic operations,

bit manipulations,

comparison operations)

None

Programming

Console function

(Executes functions

equivalent to C200H-PR027

and CS1 Programming

Consoles.)

None

High-quality font

Supported

None

Memory Unit

Supported

10,000 hours min.

Backlight service life

50,000 hours min.

Via RS-232C

communications

Memory Links

Supported

None

Bar Code Reader

connection

Supported

9,600/19,200

Host Link Speed

9,600/19,200

None

Supported

Supported

Comparison with the NT11

160 x 64 dots (4.24 inches)

100 x 40 mm

Black & white (with Yellow mode)

204.2 x 99.8 mm

250

32 KB

4

Numeric Keys, Cursor Keys, Function Keys

None

None

None

None

None

None

None

None

None

None

None

None (Emergency transfer mode)*

None

None

None

50,000 hours min.

10,000 hours min.

Up to 115,200

9,600/19,200

NT2

NT21

NT21