High Function Touch Screens - NT2 1

High Function Touch Screens - NT2 1
High Function Touch Screens - NT21 / NT31 / NT631
Get the Most from Your Omron PLCs
The NT21/NT31/NT631 operator interface products create superior Omron PLC solutions
by taking advantage of features that other HMI products simply cannot offer in an Omron
system. Our HMI products are designed with the same attention to quality and
performance that go into our broad line of industry leading PLCs. Omron's NT21/31/631
also offer significant programming flexibility in object layout and PLC controls, allowing
you to create the program needed to realize your operator interface vision.
• High-Speed NT Link - This 115 kbaud serial Omron
protocol allows rapid data exchange with Omron CJ1
and CS1 PLCs.
• NT Link 1:N - At 38.4 and 115 kbaud, NT Link 1:N allows
8 screens to be connected to a single serial port on CJ1
and CS1 PLCs with minimal impact to performance.
• PLC Programming Console - Simulate a hand-held
programming device right on the HMI screen and
monitor, set PLC values, and make minor ladder
program changes.
• PLC Device Monitor - This function allows the NT31 and
NT631 to function as watch windows, where the user can
specify and view banks of PLC addresses, change values,
and view errors without opening the panel.
• Pop-Up Windows - Present up to two pop-up windows
at a time on the HMI screen to control critical information
in a timely manner.
• Window Control Area - Control pop-up windows from the
PLC memory by manipulating the window control area.
• Parent/Child Windows - Create screen segments that can
be used again and again throughout a project. This
conserves both screen memory and programming effort.
• Same programming functionality available in 5.2”, 5.7”,
10.4”, and 11.3” screen sizes.
Multi-Vendor Communications
Standardize on Omron’s high quality touch screens regardless of
which PLC vendors you use. Our drivers and vendor-specific
cables allow Omron’s NT31 and NT631 touch screens to
communicate with the PLCs from the following vendors:
• Omron (CV, CS1, CJ1, CPM1A, CPM2, SRM1)
• Allen-Bradley (ML1000/1200/1500, SLC 5/00, 5/01, 5/02,
5/03, 5/04, 5/05)
• GE Fanuc Series 90-20 and 90-30 PLCs
• DeviceNet communication module available for NT31
and NT631.
• Mitsubishi A and FX series PLCs
• Supports multi-vendor communication, allowing Omron
touch screens to be the standard HMI.
• Modicon Micro, Premium, Quantum, Momentum
• Memory module can be set to automatically upload or
download both screen data and system firmware.
• Analog data can be displayed in chart, bar graph, and
needle gauge objects.
• Binary status can be shown with lamps, animated
bitmaps, and alarm bits.
• Siemens S7-300 and S7-400 PLCs
OMRON Data Comparison
Relative Response Speed for Communications with
Single PT Connected
Host Link
NT Link
High-Speed NT Link
High-speed NT Link highlights the advantages that come when you
partner an Omron PLC with an Omron touch screen. Combine
Omron’s CS1-EV1 PLCs with NT21/31/631 to benefit from 115k baud
serial communications tailored exclusively for PLC to touch screen
data. It is almost twice as fast as Host Link and 25% faster than
standard NT Link when a single NT unit is connected to a PLC serial
port. High-speed NT Link is three times faster than standard NT Link
with 8 NT units connected to a single CS1 or CJ1 serial port.
NT Link
2.5 3.0
Relative Response Speed for Communications with
Eight PTs Connected
NT Link
NT Link
Three times
2.5 3.0
All data was measured at the RS-232C port of the CPU Unit with
the response speed for a single NT Unit connected taken as 1.
NT21 / NT31 / NT631
The NT31 and NT631 can be quickly configured for
DeviceNet communications, integrating seamlessly
into your open DeviceNet network. This is truly a
multi-vendor PLC solution, since no modifications
need to be made to the screen data when changing
the brand of the DeviceNet master. (See the
DeviceNet Technical Discussion in the Technical
Highlights of this catalog for detailed
NT Link 1:N
This protocol allows multiple interfaces to be
connected to one PLC communication port. It is
available with both standard and high speed NT
Link. This protocol allows you to create a multidrop system that puts up-to-the-second data at
locations along the production line. (See the NT
Link section in the Technical Highlights of this
catalog for more details and specifications.)
Memory Link
Directly connect the NT with a single board computer, PLC or
personal computer via RS-232C or RS-422 communications using
Memory Link. This protocol allocates a virtual memory area within
the operator interface to store data values. The screen program
references this internal memory area for all screen objects, just as
though this memory area belonged to a PLC. This means your PC
based device only has to be concerned with referencing this
memory area to read and write data values. (See the Memory Link
section in the Technical Highlights at the end of this catalog for
more details.)
NT21 / NT31 / NT631
Recipe Data
Recipes store rows of values within the NT memory and operators
can send that information down to the PLC to configure it for a
batch operation. The new Recipe Table editor in NTST v4.6 creates
and manages recipe information, allowing recipe data to be up- or
downloaded from the NT hardware. NTST can also work with
comma separated variable files to read in large recipe tables, or
store uploaded recipe data for future reference or use.
Background Math Function
NT31/631 units store a Mathematical Table that allows functions of
different formats to run in the background of the NT31/631 units.
The equations can be constructed of constants, values from
NT31/631 memory, or values from PLC memory locations.
Calculation results can be sent to NT31/631 internal memory or
directly to the PLC memory. Now you can convert values for
display purposes within the display device, leaving the PLC to
worry about calculations that affect your process.
Input Enable - Bit Interlock
This function is suited for use as a password protection function.
The interlock function denies access to input objects (touch
switches, thumb-wheels, numeric input fields, and string input
fields) based on the status of a bit in the PLC. Each input object
within an NT31/631-EV2 project can be assigned to a unique bit or
the same bit within the PLC. If the bit is ON, the input object will
function. Turn the bit OFF and the input object is locked out.
An excellent application of this feature would be login security.
When the operator enters a password using a keypad, the PLC will
compare the entered number to the values in certain PLC memory
registers. The PLC can then change the referenced bits from 0 to 1
accordingly, granting access to different screen areas or input
objects as designated by the user’s access level.
NT21 / NT31 / NT631
Pop-Up Windows
Two window screens can be displayed in one standard screen,
maximizing screen space and application efficiency. All objects
(except thumb-wheel switches) can be displayed within these popup windows allowing operators to simultaneously view different
aspects of the process as needed. Create a variety of pop-up
window screens and call them up for display in your application as
needed, either manually or from PLC memory.
Alarm History, Frequency,
and Activity
Track your process and create a fault record using the alarm
history, frequency and activity functions. These pop-up windows
graphically convey problems in your process and allow you to
make corrections to save time and materials. Simply drag the
alarm object into the touch screen project, create a PLC bit
reference in an alarm bit table, add a message to that bit, and the
NT21/NT31/NT631 are ready to track and report alarms. The
complete alarm history and frequency reports can be printed from
the system menus.
Memory Unit
This portable FLASH memory module includes two 1MB banks.
Each bank can store the screen data from a fully loaded operator
interface, or the firmware program for the NT21, NT31 or NT631.
The module can be set for manual or automatically triggered
upload or download of data. In fact, the module can be configured
to first download a new firmware program and then to
automatically download new screen data. Imagine how easy it
would be to update customers in the field! No PC connection is
needed. Just plug on the module, power up the touch screen and
transfer the programs.
Programming Console
When using an Omron PLC and NT-Link communications, this
feature allows you to adjust mnemonic programming and access,
monitor, and change individual memory addresses using the
operator interface instead of a laptop or hand-held programmer.
Now, maintenance personnel no longer need to carry a hand-held
programmer or laptop from PLC to PLC to perform diagnostics. It
can be performed right from the front of the operator interface
without ever opening the control panel.
NT21 / NT31 / NT631
Device Monitor Function
Another feature available on the NT31/631 when using an Omron PLC,
the Device Monitor Function allows the NT to monitor tables of
individually selected PLC values, or entire ranges of a PLC memory
area. Once the values or ranges are selected, data values can be
viewed in real time as they change. There is also a window to view
errors currently active within PLC memory. Previously, only the PLC
programming software could perform these diagnostics. Now, no
laptop is needed for these basic debugging tools.
Registration Monitor – Manually create a list of PLC addresses and
simultaneously monitor them. Update the different values by touching
the address and entering a new value with a popup keypad.
PLC Error Screen – View the current errors in the PLC.
Continuous Monitor - Create a table of 50 PLC addresses to monitor
and change. Simply select the initial address, and the table
automatically fills in with the next (25 for NT31, 50 for NT631)
sequential addresses.
Images and Art Objects
Bitmap images can be displayed as fixed objects or image
lamps. Image lamps have an ON state and OFF state, each
represented by a different bitmap. Image objects display
bitmap images from the image table stored within the
operator interface. This can be a fixed reference to one
image table location, or the reference can be controlled by
the PLC. This is an excellent way to quickly achieve
Touch Switches and Lamps
The original purpose of touch screens was to provide a cost effective
replacement for hardwired pushbutton and selection switches and
indicator lamps. This is still one of the primary motivations on panels
today. The NT31 and NT631 include a variety of touch switch and
lamps, as well as a library of image objects to lend that special touch.
Omron touch switches and lamps include a higher degree of control
than most touch screen products, allowing the objects to be sized,
colored, and positioned as needed. There are also many labeling
options available:
• Control bits
• Control pop-up windows
• Switch screens
• Copy values
• Input numeric & text
• Move the cursor
• Execute a screen print
NT21 / NT31 / NT631
Dynamic Labels
The labels within touch switches and lamps can change with bit
state, display a numeric value from PLC memory, or display any
number of messages directly from a string table as commanded by
the PLC. The string table is a numbered list where each table entry
represents a different string message. The PLC can specify a string
table entry number and change the message displayed within a
switch or lamp, creating a great deal of application flexibility.
Numeric and String Display
Numeric values can be displayed as bar graphs, needle meters, or
simple formatted numerals. All of these options are highly
customizable, and can be located anywhere on the screen. Strings
can be displayed as alphanumeric characters read from the string
table in the operator interface memory as directed by the PLC, or
taken directly from PLC memory.
Graphical Data Display
Use colorful charts and graphs to convey complex data
to your operators at a glance. Chart data can be logged
for review of previous activity.
The NT31 and NT631 series interfaces have a dedicated printer
port, an RS-232C port with a 5vdc pin, and a port that is
configured to RS-232C, RS-422/485 (the NT631 uses a terminal
block for RS-422/485 connection). The dedicated RS-232C port
is generally left available to ensure a free port for program
transfer. The dedicated RS-232C port is also available for
connection to a bar-code reader (Omron serial driver only).
The NT21 series interface has two RS-232C ports. One port can
be converted to RS-422/485 using the NS-AL002 adapter.
Communication Ports
Compact Design
The shallow depths, efficient face dimensions, and small
panel cutout requirements make this NT series ideal for
mounting in confined spaces.
NT21 / NT31 / NT631
Ordering Information
NT21 Display
Monochrome STN LCD 5.2” touch screen
NT21 Accessories
5 NT21 Protective Screen Sheets
NT21 Chemical Resistant Cover
RS232C to RS422A Adapter
NT31 Display
Monochrome STN LCD 5.7” touch screen
8 Color STN LCD 5.7” touch screen
NT31 Accessories
NT30/NT31 Chemical Resistant Cover
5 NT30/NT31 Protective Screen Sheets
NT31/NT31C Replacement Backlight
50 cm 25-9PIN Cable, NT to Omron PLC
3 m 25-9PIN Cable, NT to Omron PLC
5 m 25-9PIN Cable, NT to Omron PLC
3 m 25-9PIN Cable, NT to AB PLC
3 m 25-9PIN Cable, NT to GE PLC
3 m 25-9PIN Cable, NT to Siemens
3 m 25-9PIN Cable, NT to Mitsu-A
3 m 25-9PIN Cable, NT to Mitsu-FX
Part Number
NT21 Dimensions
mm (inches)
NT631 Display
Electroluminescent 10.4” touch screen
8 Color STN LCD 11.3” touch screen
8 Color TFT LCD 10.4” touch screen
NT631 Accessories
NT631C-ST141 Replacement Backlight
NT631C-ST151 Replacement Backlight
NT631 Chemical Resistant Cover
5 NT631 Protective Screen Sheets
General Accessories
NT Series Support Tool v 4.6
Programming Cable 9-9 pin
50 cm 9-9PIN Cable, NT to Omron PLC
3 m 9-9PIN Cable, NT to Omron PLC
5 m 9-9PIN Cable, NT to Omron PLC
2 m 9PIN Cable, NT to AB DH-485 Port
3 m 9-9PIN Cable, NT to AB PLC
3 m 9-9PIN Cable, NT to GE PLC
3 m 9-9PIN Cable, NT to Siemens
3 m 9-9PIN Cable, NT to Mitsu-A
3 m Term-25PIN Cable, NT to Mitsu-FX
2 m CS1/CJ1/CPM2C Peripheral Com. Cable
5 m CS1/CJ1/CPM2C Peripheral Com. Cable
NT to Printer Cable
NT31/NT631 Program Transfer Module
30W, 24 VDC, 1.3 A Power Supply
50W, 24 VDC, 2.1 A Power Supply
Operation Manuals
NT21 Set-Up Manual
NT31 Set-Up Manual
NT631 Set-Up Manual
NT21/31/631 Reference Manual
NT31 Dimensions
Part Number
NT631 Dimensions
mm (inches)
5 (0.20)
Recommended Panel Cutout Dimensions
131 ±0.02
184 ±0.02
7.5 (0.30)
Recommended Panel Cutout Dimensions
238 ±0.02
303 ±0.02
NT21 / NT31 / NT631
Rated power supply voltage 24 VDC
Power consumption 7 W max.
Operating ambient temperature 0 to +50ºC (with no icing)
Operating ambient humidity 35 to 85% (0 to 40ºC)
35 to 60% (40 to 50ºC)
(with no condensation)
Noise resistance Conforms to IEC61000-4-4;
Power supply line: 2 kV
Vibration resistance (operating) 10 to 57 Hz with 0.075 mm amplitude;
57 to 150 Hz with 1G (9.8 m/s2)
acceleration for 60 min. in each of
X, Y, Z directions
15 W max.
0 to +50ºC
ST211 30 W max.;
ST141 & ST151 18 W max.
ST211 & ST151 0 to +50ºC;
ST141: 0 to +40ºC
35% to 85% (with no condensation)
Common mode: 1000 Vp-p (between power supply terminals & panel); Normal
mode: 300 Vp-p; Pulse width of 100 ns to 1µs, pulse rise time of 1 ns
10 to 57 Hz with 0.075 mm amplitude;
ST211: 10 to 57 Hz with 0.075 mm
amplitude for 30 min. in each of X, Y, Z
57 to 150 Hz with 1G (9.8 m/s2)
acceleration for 60 min. in each of
directions; ST141 & ST151: 10 to 57
Hz with 0.075 mm amplitude, 57 to 150
X, Y, Z directions
Hz with 1G (9.8 m/s2) acceleration for 30
min. in each of X, Y, Z directions
Shock resistance (operating) 147 m/s2 (15G); 3 times in each of X, Y, Z directions
Dimensions 190 (W) x 110 (H) x 53.5 (D) mm
315 (W) x 250 (H) x 54 (D) mm
195 (W) x 142 (H) x 54 (D) mm
(thickness inside panel: 49 mm)
(w/ expansion unit: 74 D)
(w/ expansion unit: 74 D)
Weight 0.6 kg max.
2.5 kg max.
1 kg max.
Enclosure ratings Front panel: equivalent to IP65F (NEMA4)*
Monochrome STN LCD
Display panel
Monochrome or Color STN LCD
ST211: EL (monochrome); ST141:
with backlight
Color STN LCD with backlight; ST151:
Color TFT LCD with backlight
Number of dots (resolution) 260 dots horizontally x 140 dots vertically 320 dots horizontally x 240 dots vertically 640 dots horizontally x 480 dots vertically
Effective display area 117 (H) x 63 (V) mm
118.2 (H) x 89.4 (V) mm
ST211 & ST151: 211 (H)
(5.2 inches diagonal)
x 158 (V) mm (10.4 inches diagonal)
(5.7 inches diagonal)
ST141: 229 (H) x 172 (V) mm
(11.3 inches diagonal)
View angle Left/right direction: 30º; Up/down: 30º NT31: Up: 20, Down: 30, Left/right: 30;
ST211: No restriction; ST141:
NT31C: Up: 45, Down: 60, Left/right: 50 Up/down: 30, Left: 55, Right: 45;
ST151: Up: 40, Down: 55,
Left/right: 55
Display color ST121: 2 color black/white
ST211: 2 color black/gold;
ST121: 2 color black/white;
ST141 & ST151: 8 color
ST141: 8 color
Life expectancy 50,000 hours minimum
50,000 hours minimum
ST211: 30,000 hrs min.;
ST141 & ST151: 50,000 hrs min.
NT31 & NT631-ST141 only: Adj. in 100 levels by touch switch operation at panel
Contrast adjustment Knob on back of unit
Max. number of registered screens 3999 screens
Life expectancy 50,000 hours min.
25,000 hours min.
ST141: 25,000 hours min.;
ST151: 30,000 hours min.
NT31, NT631-ST141 & NT631-ST151: Can be replaced from the rear
Replacement Non-replaceable
NT31 & NT631-ST141 only: Adj. in 3 levels by operation at the touch panel
Brightness adjustment –
Automatic turn-off function Can be set to turn off in 1 to 255 minutes, or to remain on with screen saver
Touch panel
Type Resistive type
Resistive type
Number of switches 91 (13 horizontally x 7 vertically)
768 (32 horizontally x 24 vertically)
192 (16 horizontally x 12 vertically)
Max. number registered on one screen 91
Life expectancy One million operations minimum
One million operations minimum
One million operations minimum
Serial communication
Serial port A Conforms to EIA RS-232C; D-SUB 9-pin connector (female); +5 V (250 mA max.) output at pin No. 6
Serial port B Conforms to EIA RS-232C; D-SUB 9-pin EIA RS-232C or RS-422A/485 (selectable, EIA RS-232C (serial port B terminal block
connector (female); +5 V (250 mA max.) by memory switch setting); D-SUB 25-pin selectable by memory switch setting);
output at pin No. 6
D-SUB 9-pin connector (female)
connector (female)
EIA RS-422A/485 (serial port B
Serial port B terminal –
connector selectable by memory switch
setting); Terminal block
Battery backup Numeral/character string memory tables data in the NT unit; Alarm history data table in the NT unit; Recipe tables in the NT
unit; Real time clock and calendar (NT31/31C/631/631C only)
“ESC/P”, “Color”: Color printing conforming to ESC/P 24-J83C; “PC-PR201H”, “Color”: Color printing
Screen print function –
conforming to PC-PR201PL; “ESC/P”, “Tone”: Monochrome printing in 8 grayscale levels, conforming
to ESC/P 24-J82; “PC-PR201H”, “Tone”: Monochrome printing in 8 grayscale levels, conforming to
the current
time in accordance
PC-PR201PL; “PCL-5”, “Tone”: Monochrome printingDisplays
in 8 grayscale
levels, conforming
to PCL 5;
with the
built-in clock; Displayed and set
however, the NT31 & NT631 supports monochrome printing
Calendar & clock function –
Displays the current time in accordance with the built-in clock; Displayed and set with “Calendar
Check” in the MAINTENANCE MODE” menu
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