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Programmable Terminal
NT Series
CSM_NT_series_DS_E_2_3
Better Compatibility and
Easier-to-use Support Software
• Device monitoring and I/O comment loading functions
facilitate system construction.
• Greatly enhanced NT Support Software with reusable
screen data and powerful simulation on editing screens.
• Transfer the system program and screen data to ensure
smooth on-site system maintenance and improve the
efficiency of onsite work.
• Wide Range of Communications Interfaces.
NT31/C
NT20
NT631C
Note: NT31 and NT31C in this catalog have been discontinued at
the end of March 2014.
NT20 in this catalog have been discontinued at the end of
September 2015.
Lineup
Model
NT631C-ST153(B)-EV3
NT31C-ST143(B)-EV3
TFT color display
Effective display area
211 × 158 mm
118 × 89 mm
111.5 × 57.6 mm
Number of dots (resolution)
640 × 480 dots
320 × 240 dots
256 × 128 dots
Max. number of touch switches
32 × 24 switches
16 × 12 switches
12 × 6 switches
External interface
RS-232C, RS-422A, RS-485, and printer port
From OMRON
(See note 2.)
From
Mitsubishi
Connectable
hosts
(See note 1.)
STN monochrome display
NT20-ST121(B)
Display
Applicable standards
STN color display
NT31-ST123(B)-EV3
STN monochrome display
2 RS-232C ports
cULus standards, EC Directives, and C-Tick
1-to-1 NT Link
C200HX(-Z), C200HG(-Z), C200HE(-Z), C200HS-CPU2@, and C200HS-CPU3@
CQM1-CPU4@, CPM1A, CPM2A/C, SRM1, CVM1/CV Series (EV1 or EV2), and C200HX/HG/HE Communications Boards
1-to-N NT Link
CJ1@, CS1H, CS1G, C200HX(-Z), C200HG(-Z), C200HE(-Z), and SRM1-EV2
CS1 Communications Unit and CQM1H Communications Board
High-speed NT
Link
CJ1@, CS1H and CS1G
Host Link
CJ1@(-H), CS1@(-H), C200HX(-Z), C200HG(-Z), C200HE(-Z), C200HS-CPU2@, C200HS-CPU3@ and CS1
Communications Units
CQM1-CPU4@, CQM1-CPU2@, CPM1A, CPM2A, CPM1C, SRM1, CVM1, CVseries (EV1 or EV2), C-series/CV-series/
CVM1 Host Link Unit
Memory Link
Personal Computer, SBC, and Programmable Controller
Mitsubishi FX
Series
MELSEC FX1, FX2, FX2C, FXO, and FXON
Mitsubishi ASeries
(Computer Link
Unit)
AOJ2-C214S1, A1SJ71UC24-R2,
A1SJ71UC24-R4, and AJ71UC24
Personal computer, SBC, or
PLC (RS-232C)
(See note 5.)
Allen Bradley (DE1)
SLC 5/02, 03, 04, and 05 (See note 3.)
−
GE-Fanuc (SNP-X)
90-20 and 90-30 Series (See note 3.)
−
Siemens (Via HMI
Adapter)
S7-300 and S7-400 Series (See note 3.)
−
Japanese
Language
English
Simplified Chinese
(See notes 4, 5, and 6.)
Traditional Chinese
(See note 4.)
−
Note: 1. Including models whose production were discontinued.
2. There are some limitations on hosts that can be connected. Refer to the PT manual for details. C200H direct connections can be used
with the NT20-ST121 (using the NT20-IF001).
3. The English version of the NT Support Tool must be used.
4. Simplified Chinese is mostly used in mainland China and uses simplified characters. Traditional Chinese is mostly used in Hong Kong
and Taiwan and uses traditional characters.
5. Purchase the NT20-ST121(B)-EC to display simplified Chinese on the NT20.
6. A separate system program must be installed in the NT20 to use RS-232C memory links with the NT20. Simplified Chinese is not
supported.
1
NT Series
Ordering Information
International Standards
• The standards are abbreviated as follows: U: UL, U1: UL (Class I Division 2 Products for Hazardous Locations),
C: CSA, UC: cULus, UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, and CE: EC Directives.
• Contact your OMRON representative for further details and applicable conditions for these standards.
Programmable Terminals
Item
NT631C
Specification
TFT color
STN color
NT31/NT31C
STN monochrome
NT20
STN monochrome
Model
Frame color: beige
NT631C-ST153-EV3
Frame color: black
NT631C-ST153B-EV3
Frame color: beige
NT31C-ST143-EV3 *
Frame color: black
NT31C-ST143B-EV3 *
Frame color: beige
NT31-ST123-EV3 *
Frame color: black
NT31-ST123B-EV3 *
Frame color: beige
NT20-ST121-E *
Frame color: black
NT20-ST121B-E *
Standards
CU, CE
* Production was discontinued.
Programming Devices
Item
Support Software
Cable
Specification
Model
English
Windows 98, NT, 2000, Me, XP, Vista, or 7.
Note: Except for Windows XP 64-bit version.
(provided on CD-ROM)
NT-ZJCAT1-EV4
Memory Unit for Screen Transfer
NT631C/NT31@/NT20 (common)
NT-MF261
For screen transfer
For IBM PC/AT or compatible (2 m)
XW2Z-S002
Printer
For hardcopies of screens
NT-CNT121
Standards
−
Options
Item
Specification
Model
DeviceNet Interface Unit
Anti-reflection Sheets
(surface only)
NT631C (5 sheets)
NT610C-KBA04
NT31/31C (5 sheets)
NT30-KBA04
NT20 (5 sheets)
NT20-KBA04
NT631C (5 sheets) glare
NT631C-KBA05
NT631C (5 sheets) non-glare
NT631C-KBA05N
NT31/31C (5 sheets)
NT31C-KBA05
NT631C
NT625-KBA01
NT31/NT31C
NT30-KBA01
NT20
NT20-KBA01
Battery
NT631C/NT31@/NT20 (common)
C500-BAT08
Bar-code Reader
Refer to the Catalog for details.
V520-RH21-6
RS-422A Converter
For NT20 ports A and B
CJ1W-CIF11
Interface Attachment
For NT20
NT20-IF001
Protective Cover
Option
Chemical resistant cover
(silicon cover)
Standards
NT-DRT21
U, C
−
UC1, N, L, CE
−
Communications Cable between PT and PLC
PT end
D-sub
9-pin connector
NT631C port A or B
NT31/NT31C port A
NT20 port A or B
PLC end
D-sub 9-pin connector
D-sub 25-pin connector
D-sub 9-pin connector
D-sub
25-pin connector
NT31/NT31C port B
D-sub 25-pin connector
Cable length
Cable model
2m
XW2Z-200T
5m
XW2Z-500T
2m
XW2Z-200S
5m
XW2Z-500S
2m
XW2Z-200S
5m
XW2Z-500S
2m
XW2Z-200P
5m
XW2Z-500P
Standards
−
2
NT Series
Specifications NT631C
General Specifications
Display Specifications
NT631C-ST153(B)-EV3
20.4 to 26.4 VDC (24 VDC -15%/+10%)
18 W max.
-20 to 60 °C
35% to 85% (with no condensation)
No corrosive gases
Vibration resistance
(during operation)
Shock resistance (during
operation)
Weight
Degree of protection (front
panel)
Display elements
0 to 50 °C
Conforms to IEC 61000-4-4 at 2 kV (power
supply line).
5 to 9 Hz, single amplitude: 3.5 mm
9 to 150 Hz, 9.8 m/s²
10 times (1 octave/min) each in X, Y, and Z
directions
Noise immunity
Item
24 VDC
147 m/s², 3 times each in X, Y, and Z directions
2.5 kg max.
Equivalent to IP65 oil-proof type and NEMA4
(See note.)
Note: The equipment cannot be used for long periods of time in
locations which expose the panel to spills of oil.
Screen types
Model
Item
Rated power supply voltage
Allowable power supply
voltage range
Power consumption
Ambient operating
temperature
Storage temperature
Ambient operating humidity
Ambient operating
environment
Display/Panel Specifications
Display
Backlight
LED
Model
Display device
Number of dots
(resolution)
Effective display
area
NT631C-ST153(B)-EV3
Color TFT LCD
640 dots (horizontal) × 480 dots (vertical)
211 × 158 mm
(10.4 inches)
8 colors
Display color
(intermediate colors can be displayed in tiling
patterns)
50,000 hours
Service life
(until contrast is reduced by 50%)
Automatic turn-OFF 1 to 255 minutes/None
Service life when
brightness is set to 50,000 hours min. (See note.)
high)
POWER Green
Lit while power is being supplied.
Green
Lit during operation
Lit when the battery voltage is low (when
Orange
operating)
RUN
Lit when the battery voltage is low (when
Red
stopped)
Note: The time until brightness is reduced by half, under normal
temperature and normal humidity.
Trend graphs
Broken line graphs
Lamps
Image library displays
Touch switches
Numeral inputs
Thumbwheel switches
Character string inputs
Alarm lists
Alarm histories
Normal screen
Overlapping screens
Window screens
Display history screens
Screen attributes
Number of screens
Item
Model
Character displays (fixed display)
Graphic displays
Character string displays
Numerical displays
Bar graph displays
Analogue meter
Max. number of
registered screens
Item
Touch
panel
Model
Number of switches
Input
Operating force
Service life
NT631C-ST153(B)-EV3
768 (32 × 24)
Pressure sensitive
1 N max.
1,000,000 operations min.
Screen No.
Screen registration method
Screen saving method
Model
Serial port A
Serial
communications
Serial port B
Parallel I/F
Expansion I/F
NT631C-ST153(B)-EV3
Conforms to EIA RS-232C.
D-sub 9-pin connector (female)
+5 V (250 mA max.) output at pin No. 6
EIA RS-232C, (RS-422A/485 selectable by
memory switch setting)
RS-232C: D-sub 9-pin connector (female)
RS-422A/485: Terminal block (6 terminals)
Conforms to Centronics specifications,
20-pin half-pitch connector
Dedicated connector
Up to 256 per screen
Up to 256 per screen
Up to 4 groups per screen
The normal screen display
A maximum of 8 registered screens can be
displayed overlapped with each other.
Up to 3 screens (2 local windows and 1 global
window) can be displayed at the same time.
Order of occurrence (max. 1,024 screens), order
of frequency (max. 255 times)
Buzzer, display history, background color,
backlight, keyboard screen number
0: No display
1 to 3999: User-registered screens
9000: "Initializing system" screen
9001: Display history (occurrence order) screen
9002: Display history (frequency order) screen
9020: Programming Console function screen
9999: Return to the previous screen
9021 to 9023: Device monitor
By transmitting screen data created using the
Support Tool to the NT631C
By transmitting screen data stored in a memory
unit to the NT631C
Flash memory (screen data memory in the PT)
Display Element Specifications
Item
Model
Display characters
Smoothing processing
Character display attribute
Image data
External I/F Specifications
Item
Up to 256 per screen (40 bytes (40 characters) per string)
256 per screen, max. 10-digit display (2 words)
Up to 50 per screen, percentage display and sign display are possible.
Up to 50 per screen, percentage display and sign display are possible.
One frame per screen, 50 graphs per frame
(only 8 graphs per frame with data logging)
One frame per screen, 256 graphs per frame,
512 points per graph
Up to 256 per screen
Up to 256 per screen
Up to 256 per screen, Max. overlap: 256 mesh
3,999 screens
Enlargement function
Operation Specifications
NT631C-ST153(B)-EV3
65,535 per screen (including marks)
Library data
Graphics
Line type
Tilling
Graphic display attribute
Display colors
NT631C-ST153(B)-EV3
Half-size characters (8 × 8 dots): Alphanumerics and symbols
Normal-size characters (8 × 16 dots): Alphanumerics and symbols
Mark data (16 × 16 dots): User defined picture characters
Normal size, double width, double height, and
magnifications of 4X, 9X, 16X, 64X
Available for enlarged characters with
magnification of 4X or greater (excluding marks)
Normal, reverse, flashing, reverse and flashing, transparent
Variable-size pictograph
Size: Min. 8 × 8 dots, Max. 640 × 480 dots
The size can be set in 8-dot units.
It is not possible to set enlarged display,
smoothing processing, or display attributes such
as reverse/flashing.
Combination of any characters and graphics
Size: Min. 1 × 1 dots, Max. 640 × 480 dots
Any size can be set.
Enlarged display, smoothing processing, and
display attributes such as reverse/flashing are
displayed according to the setting registered.
Polyline, circle, arc, fan, square, polygon
Solid line, dotted line, alternate long and short dash, long and
two short dashes (only polylines for other than solid lines)
10 types
Normal, flashing, reverse, reverse flashing
8 colors (black/blue/red/purple/green/light blue/yellow/white)
Data Capacities
Model
NT631C-ST153(B)-EV3
1 MB
2 words x up to 2,000 (1,000 tables can be
Numeric memory table
backed up with battery)
40 normal-size characters x up to 2,000 (Data
Character string memory table
can be written to and read from 500 tables)
Bit memory table
1 bit × 1,000
Mark data
224 (16-by-16-dot basis)
Image data
4,095 items
Library data
12,288 items
Item
Screen data capacity
3
NT Series
Specifications NT31/NT31C
Display Specifications
General Specifications
NT31-ST123(B)-EV3/NT31C-ST143(B)-EV3
24 VDC
20.4 to 26.4 VDC (24 VDC -15%/+10%)
15 W max.
-20 to 60 °C
35% to 85% (with no condensation)
No corrosive gases
Vibration resistance
(during operation)
Shock resistance (during
operation)
Weight
Degree of protection (front
panel)
Display elements
0 to 50 °C
Conforms to IEC 61000-4-4 at 2 kV (power
supply line).
5 to 9 Hz, single amplitude: 3.5 mm
9 to 150 Hz, 9.8 m/s²
10 times (1 octave/min) each in X, Y, and Z
directions
Noise immunity
Item
147 m/s², 3 times each in X, Y, and Z directions
1 kg max.
Equivalent to IP65 oil-proof type and NEMA4
(See note.)
Note: The equipment cannot be used for long periods of time in
locations which expose the panel to spills of oil.
Screen types
Model
Item
Rated power supply voltage
Allowable power supply
voltage range
Power consumption
Ambient operating
temperature
Storage temperature
Ambient operating humidity
Ambient operating
environment
Display/Panel Specifications
Display device
Number of dots
(resolution)
Effective display
area
Display
Backlight
LED
Display color
Service life
Automatic turnOFF
Contrast
adjustment
Service life (when
brightness is set to
high)
Brightness
adjustment
POWER Green
Green
RUN
Orange
Red
NT31-ST123(B)-EV3
Monochrome STN
LCD
NT31C-ST143(B)-EV3
Color STN LCD
320 dots (horizontal) × 240 dots (vertical)
118.2 × 89.4 mm (5.7 inches)
8 colors (intermediate
colors can be
displayed in tiling
patterns)
50,000 hours (until contrast is reduced by 50%)
Black/White
(2 colors)
1 to 255 minutes/None
100 levels of adjustment possible using the front
touch panel
50,000 hours min. (See note.)
3 levels of adjustment possible using the front
touch panel
Lit while power is being supplied
Lit during operation
Lit when the battery voltage is low (when
operating)
Lit when the battery voltage is low (when
stopped)
Trend graphs
Broken line graphs
Lamps
Image library displays
Touch switches
Numeral inputs
Thumbwheel switches
Character string inputs
Alarm lists
Alarm histories
Normal screen
Overlapping screens
Window screens
Display history screens
Screen attributes
Number of screens
Model
Item
Model
Character displays (fixed display)
Graphic displays
Character string displays
Numerical displays
Bar graph displays
Analogue meter
Max. number of
registered screens
Screen No.
Screen registration method
Screen saving method
Item
Model
Display characters
Enlargement function
Smoothing processing
Operation Specifications
Image data
Touch
panel
NT31-ST123(B)-EV3/NT31C-ST143(B)-EV3
192 (16 × 12)
Pressure sensitive
1 N max.
1,000,000 operations min.
Library data
Graphics
External I/F Specifications
Item
Model
Serial port A
Serial
communications
Serial port B
Parallel I/F
Expansion I/F
NT31-ST123(B)-EV3/NT31C-ST143(B)-EV3
Conforms to EIA RS-232C
D-sub 9-pin connector (female)
+5 V (250 mA max.) output at pin No. 6
EIA RS-232C (RS-422A/485 selectable by
memory switch setting)
D-sub 25-pin connector (female)
Conforms to Centronics specifications,
20-pin half-pitch connector
Dedicated connector
Up to 256 per screen
Up to 256 per screen
Up to 4 groups per screen
The normal screen display
A maximum of 8 registered screens can be
displayed overlapped with each other.
Up to 3 screens (2 local windows and 1 global
window) can be displayed at the same time.
Order of occurrence (max. 1,024 screens), order
of frequency (max. 255 times)
Buzzer, display history, background color,
backlight, keyboard screen number
0: No display
1 to 3999: User-registered screens
9000: "Initializing system" screen
9001: Display history (occurrence order) screen
9002: Display history (frequency order) screen
9020: Programming Console function screen
9999: Return to the previous screen
9021 to 9023: Device monitor
By transmitting screen data created using the
Support Tool to the NT31/NT31C
By transmitting screen data stored in a memory
unit to the NT31/NT31C (automatic/manual)
Flash memory (screen data memory in the PT)
Display Element Specifications
Character display attribute
Model
Number of
switches
Input
Operating force
Service life
Up to 256 per screen (40 bytes (40 characters) per string)
256 per screen, max. 10-digit display (2 words)
Up to 50 per screen, percentage display and sign display are possible.
Up to 50 per screen, percentage display and sign display are possible.
One frame per screen, 50 graphs per frame
(only 8 graphs per frame with data logging)
One frame per screen, 256 graphs per frame,
320 points per graph
Up to 256 per screen
Up to 256 per screen
Up to 256 per screen, Max. overlap: 256 mesh
3,999 screens
Note: The time until brightness is reduced by half, under normal
temperature and normal humidity.
Item
NT31-ST123(B)-EV3/NT31C-ST143(B)-EV3
65,535 per screen (including marks)
Line type
Tilling
Graphic display attribute
Display colors
NT31-ST123(B)-EV3 NT31C-ST143(B)-EV3
Half-size characters (8 × 8 dots): Alphanumerics and symbols
Normal-size characters (8 × 16 dots): Alphanumerics and symbols
Mark data (16 × 16 dots): User defined picture characters
Normal size, double width, double height, and
magnifications of 4X, 9X, 16X, 64X
Available for enlarged characters with
magnification of 4X or greater (excluding marks)
Normal, reverse, flashing, reverse and flashing, transparent
Variable-size pictograph
Size: Min. 8 × 8 dots, Max. 320 × 240 dots
The size can be set in 8-dot units.
It is not possible to set enlarged display,
smoothing processing, or display attributes such
as reverse/flashing.
Combination of any characters and graphics
Size: Min. 1 × 1 dots, Max. 320 × 240 dots
Any size can be set.
Enlarged display, smoothing processing, and
display attributes such as reverse/flashing are
displayed according to the setting registered.
Polyline, circle, arc, fan, square, polygon
Solid line, dotted line, alternate long and short dash, long and
two short dashes (only polylines for other than solid lines)
10 types
Normal, flashing, reverse, reverse flashing
8 colors (black/blue/red/purple/
2 colors (black/white)
green/light blue/yellow/white)
Data Capacities
Model
Item
Screen data capacity
Numeric memory table
NT31-ST123(B)-EV3/NT31C-ST143(B)-EV3
1 MB
2 words x up to 2,000 (1,000 tables can be backed up with battery)
40 normal-size characters x up to 2,000 (Data
Character string memory table
can be written to and read from 500 tables)
Bit memory table
1 bit × 1,000
Mark data
224 (16-by-16-dot basis)
Image data
4,095 items
Library data
12,288 items
4
NT Series
Specifications NT20
NT20-ST121(B)/128(B)
24 VDC
20.4 to 27.6 VDC (24 VDC -15%/+10%)
Not specified
10 W max.
0 to 50 °C (See note 1.) (with no
condensation)
-20 to 70 °C
35% to 85 % (0 to 40 °C)
Ambient operating humidity
35% to 50 % (40 to 50 °C) (with no condensation)
35% to 85 % (-20 to 40 °C)
Ambient storage humidity
35% to 50 % (40 to 50 °C)
35% to 45 % (50 to 70 °C) (with no condensation)
Ambient operating
No corrosive gases
environment
Noise immunity
Conforms to IEC 61000-4-4 at 2 kV (power supply line).
5 to 9 Hz, single amplitude: 3.5 mm
Vibration resistance
9 to 150 Hz, 9.8 m/s²
(during operation)
10 times (1 octave/min) each in X, Y, and Z directions
Shock resistance (during operation) 147 m/s² , 3 times each in X, Y, and Z directions
Dimensions
190 × 108 × 53.5 mm (W × H × D)
178.5 + 0.50 × 98.5 + 0.50 mm (horizontal × vertical)
Panel cutout dimensions
Panel thickness: 1.6 to 4.8 mm
Weight
0.7 kg max.
Front panel operating section: Equivalent to
Degree of protection
IP65 oil-proof type and NEMA 4. (See note 2.)
Applicable standards
UL 1604 Class 1 Division 2, EC Directives
Note 1: The display quality (e.g., contrast) will deteriorate at
temperatures above 40°C. At low temperatures, the response
speed will be reduced due to the characteristics of liquid crystal.
2: The NT631/NT31/NT20 may not be able to be used in
locations subject to long-term oil exposure.
Display/Panel Specifications
Item
Specifications
Display device
Monochrome STN LCD
140 (128) × 260 (256) dots (horizontal × vertical)
Number of dots
Dot size: 0.42 mm
(resolution)
The number of dots that can be used in NT20
system programs is indicated in parentheses.
Display
66 (57.6) × 120 (115.2) mm (horizontal × vertical)
(See
Effective display
The effective display area that can be used with
note 1.)
area
NT20 system programs is indicated in parentheses.
Display mode
Blue mode
Service life
50,000 hours min.
Contrast adjustment The contrast can be adjusted from the back of the PT.
Service life
50,000 hours min. (See note 2.)
Replacement
Cannot be replaced.
Backlight
Brightness adjustment Cannot be set.
Automatic turn-OFF Can be set to either 10 minutes, 1 hour, or lit.
FrontLit green: Normal operation with Memory Unit
panel
automatic transfer completed.
RUN
indicator
Flashing green: Executing Memory Unit
LED
automatic transfer or automatic transfer error.
Note: 1: There are sometimes faulty in the touch panel, but this does
not indicate an error as long as the number of bright or dark
pixels does not exceed the following limits.
4 total bright or dark defects maximum of the following size
with no more than one per 20-mm square: 0.2 mm < (short
dia. + long dia.)/2 < 0.55 mm
2: This time is only a guide to the half-life of luminescence at
room temperature and standard humidity.
The service life will be dramatically reduced in lowtemperature environments. For example, the service life at
0°C or less is approximately 10,000 hours (reference value).
Operation Specifications
Item
Touch panel
Specifications
Number of switches: Up to 72 registered per
screen (12 × 6 (horizontal × vertical))
Switch size: 9.14 × 9.18 mm (horizontal × vertical)
Input: Pressure sensitive
Operating force: 1 N max.
Service life: 1,000,000 operations min.
Model
Item
Serial port A
Serial
communications
Serial port B
Expansion I/F
NT20-ST121(B)
Conforms to EIA RS-232C.
D-sub 9-pin connector (female)
+5 V (150 mA max.) output at pin No. 6
The +5 V output, however, cannot be used
simultaneously at ports A and B.
EIA RS-232C
D-sub 9-pin connector (female)
+5 V (150 mA max.) output at pin No. 6
The +5 V output, however, cannot be used
simultaneously at ports A and B.
Dedicated connector
Display Specifications
Item
Display characters
Display elements
Model
Item
Rated power supply voltage
Allowable power supply voltage range
Allowable power
interruption time
Power consumption
Ambient operating
temperature
Storage temperature
External I/F Specifications
Screen types
General Specifications
Character string
displays
Numeric displays
(See note.)
Bar graph displays
(See note.)
Graphic displays
Lamps
Touch switches
Numeral settings
Normal screen
Overlapping screens
Continuous screens
Screen attributes
Number of screens
Screen registration method
Screen saving method
(image data memory)
Specifications
Host Link, NT Link, or C200H
Memory Link (RS-232C)
Direct Communications
Communications
Fixed displays (character strings registered
for each screen)
128 per file,
32 per screen
32 per screen
50 per screen max., 8-digit display
50 per screen
Any position
128 per screen
256 max. per file
72 per screen
256 max. per file
Numeral setting display (8 digits), 50 per screen
The normal screen display
A maximum of 8 registered screens can be
displayed overlapped with each other.
Switch among up to 8 screens
(Use ↑ and ↓ touch switch keys to switch screens.)
Buzzer, numeral
Buzzer, numeral settings,
settings, backlight
backlight, bit inputs
495 screens max.
By transmitting screen data created using the
Support Tool to the NT20
By transmitting screen data stored in a
Memory Unit to the NT20
(automatic/manual)
Flash memory (specific NT20 format)
Note: No. of numeral table entries that can be used (No. of numeral
displays used + No. of graphs used + No. of numeral settings) ≤128
Display Element Specifications
Item
Display characters
Enlargement function
Smoothing processing
Character display attribute
Graphics
Specifications
Half-size characters (8 × 8 dots):
Alphanumerics and symbols
Normal-size characters (8 × 16 dots):
Alphanumerics and symbols
Mark data (16 × 16 dots): User defined
picture characters
Double width, double height, and
magnifications 4X, 9X, 16X
Available for enlarged characters with
magnification of 4X or greater
Normal, reverse, flashing, reverse and
flashing
Polylines, circles
Data Capacities
Item
Character strings
Numeral data
Mark data
Touch switches
Lamps
Specifications
Host Link, NT Link, or C200H
Memory Link (RS-232C)
Direct Communications
Communications
32 characters × 128
8 digits × 128
64
No limit
256 per file max.
No limit
256 per file max.
5
NT Series
Differences between the NT20, NT20S, and NT20M
Function
NT20M-DT131
Communications
A host interface unit is needed.
Communications
connectors
Connector on front panel for connection to
Support Software (9-pin) and connector on
rear panel for connection to host
Host RUN input terminal/
Alarm output terminal
System keys
Contrast adjustment
Expansion I/O Unit
Water resistance
Allowable power
interruption time
NT20S
• NT20S-ST121-V3: Built-in Host Link/NT
Link
• NT20S-ST122-V1: Built-in C200H Direct
Communications
• NT20S-ST128: Built-in Memory Link
(RS-232C) (Other host interface units
cannot be connected.)
• NT20S-ST121-V3/ST128: Connector (9
pin) for either Support Software or host
• NT20S-ST122-V1: Connectors on rear
panel for Support Software (9-pin) and
host
NT20
System programs can be downloaded
using the System Installer.
• Host Link, NT Link, C200H Direct, and
Mitsubishi Communications preinstalled: NT20-ST121
• Memory Link (RS-232C) is provided with
a different system program.
Two communications connector ports (9pin) on rear panel
Port A: For either Support Software or
host communications
Port B: For host communications only
Yes
No
No
Yes
Front panel
Possible with DN type
Equivalent to IP54.
No
Rear panel
Not possible
Equivalent to IP65.
No
Rear panel
Not possible
Equivalent to IP65.
5 ms
Not specified
Not specified
A system ROM compatible with the host
interface unit is required.
Yes
Yes
No
Built in (cannot be replaced)
Built in (cannot be replaced)
No
No
Yes (See note.)
No
No
Yes
No
Yes
Yes
50,000 hours min.
50,000 hours min.
50,000 hours min.
10,000 hours (replaceable)
10,000 hours (replaceable)
50,000 hours (replacement not required)
Image data memory
Sold separately
(select EPROM, SRAM, or EEPROM)
Built in (flash memory)
Built in (flash memory)
Image data memory
capacity
128 KB max.
96 KB
512 KB
Dimensions
220 × 110 × 82 mm
190 × 110 × 58 mm
Panel cutout
209 × 98.5 mm
178.50 × 100.5 mm
System ROM
Resume function
History holding function
Screen data compatibility
PLC ladder program
compatibility
LCD life
Backlight life (luminescence
half life)
190 × 108 × 53.5 mm
(with no host interface)
178.5 × 98.5 mm
Note: If screens require continuous screens, numeral settings, buzzer stop, or other system key functions, touch switches with the system key
functions must be set for each screen using the Support Software. For details, refer to the NT20S Programmable Terminal User's Manual
(Cat. No. V020).
System Program Transfer
By transferring a new system program, functions and performance can be updated without changing hardware.
1) The compatible combinations of NT31/631 models and system
program versions are shown in the table.
: Indicates the preinstalled default combination of versions
(recommended).
: Indicates combinations of versions that can be transferred for
operation.
: Indicates combinations of versions that can be transferred but
for which some functions are restricted during operation (e.g.,
high-quality character display).
: Indicates combinations of versions that cannot be transferred.
PT
Pre-V1
-V1
-V2
-V3
System (See note.)
Ver. 1.x
Ver. 2.x
Ver. 3.x
Ver. 4.x
Note: The system version is shown in the System Installer program
under "Ver."
2) NT31/631 system program version 4.x can be transferred only with
System Installer V2, which is available on the CD for NT Series
Support Software version 4.08 or higher. Only system programs
up to version 3.x can be transferred with older versions of the
System Installer.
3) The NT20 system program can be transferred only with System
Installer V2.1, which is available on the CD for NT Series Support
Software version 4.8 or higher. It cannot be transferred with lower
versions of the System Installer.
6
NT Series
External Interface
NT631C
NT31C/NT31
Expansion interface connector
Expansion interface connector
Printer Port
RS-232C Port
RS-232C/RS-422A Port
(RS-232C selectable by
memory switch setting.)
NT20
RS-422A Port
Ensures 1-to-N
RS-422A or RS-485
communications, as
well as long-distance
communications.
Printer Port
RS-232C Port
The NT631 has two RS-232C ports
that can be connected directly to
bar-code readers for POP system
construction. These two ports can be
used simultaneously for the Support
Software and host, to greatly improve
debugging and maintenance
efficiency.
Expansion Interface Connector
RS-232C port
(used for both Support
Software and host)
RS-232C port
(host communications only)
Debugging and maintenance is more efficient using two ports.
Dimensions
(Unit: mm)
NT631C
NT31C/NT31
250
142
237.2
130.5
5
54
195
315
7.5
54
Recommended Panel
Cutout Dimensions
Recommended Panel
Cutout Dimensions
302.2
183.5
131.0 +0.5
0
238.0 +0.5
0
184.0 +0.5
0
NT20
303.0 +0.5
0
108
190
98
4.5
40.5
53.5
Recommended Panel
Cutout Dimensions
178
98.5 +0.5
0
178.5 +0.5
0
7
NT Series
Related Manuals
Cat. No
Model
Name
V062
NT31, NT31C *
NT31 and NT31C Programmable Terminals Setup Manual
V063
NT631, NT631C
NT631 and NT631C Programmable Terminals Setup Manual
V069
NT21, NT31 *, NT631
NT21, NT31, and NT631 Series Programmable Terminals Reference Manual
V091
NT20 *
NT20 NT-series Programmable Terminal User’s Manual
V061
NT-ZJCAT1-EV4
NT-ZJCAT1-EV4 NT-SERIES SUPPORT TOOL FOR WINDOWS VER.4.@ OPERATION
MANUAL
V066
NT-DRT21
DeviceNet (CompoBus/D) Interface Unit OPERATION MANUAL
* NT31 and NT31C have been discontinued at the end of March 2014.
NT20 have been discontinued at the end of September 2015.
8
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses 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
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not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
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 part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.10
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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