CSM_M7E_25mm_DS_E_4_3
1
Digital Display (25 mm)
M7E
Zero Suppression Incorporated
• Single-color (red or green) and two-color (red or green
selectable) displays with a character height of 25 mm are
available for a variety of applications and locations.
• Miniature design with a 43-mm depth is perfect for saving
space in equipment and devices.
• A wide power supply range from 12 to 24 VDC.
• Connectors are available, which allows easy maintenance.
• Negative logic input.
Model Configuration
■Unit Configuration
Decimal Display Unit
Displays 0, 1, 2, .. 9 (with a character height of
25.4 mm), and . (decimal point) in red or green or
red and green (selectable).
End Plate (Right)
Unit Display Unit
End Plate (Left)
Used for panel mounting. Right
and left plates form a pair
(available as set only).
Black or light gray.
Displays units with text and symbols
(see face plates) with a surface-
lighting LED.
Connector
Facilitates maintenance and
inspection. Available as a soldered
terminal type and PCB type.
M7E
2
Ordering Information
Specifications
■Ratings ■Characteristics
Note: 1. Initial values
2. Impulse conditions:
Rise time: 1 ns +10% max.
Pulse width: 100 ns, 1 μs
Polarity: Positive, negative, asynchronous to power
frequency, 100-Hz repeat frequency.
■List of Models
Note: 1. The M7E-02DGN2 (single-color (green) model) is different from the M7E-
02DRGN2 (two-color (red and green) model) in displayed tone.
2. The symbol in the box (@) expresses the code for the display contents. Refer to
page 6.
Connectable PLCs
Display contents Display color Type Model
Decimal Red Negative M7E-02DRN2
Green (See note 1.) M7E-02DGN2
Red/green (two
colors) (See note 1.)
M7E-02DRGN2
Unit Red --- M7E-02UR2-@ (See note 2.)
Green --- M7E-02UG2-@ (See note 2.)
M7E model PLC's output method
Display
contents
Type Static output Dynamic output
PNP output NPN output
Decimal Negative Not connectable Connectable Not connectable
Unit --- Connectable (only voltage imposed)
■Accessories
(Order Separately)
End Plate
Note: The Right and Left Plates form a pair.
Connector
Case color Model
Light gray M7E-022M
Black M7E-022M-1
Terminal Model
Solder terminals NRT-C
Solder terminals NRT-CN
PCB terminals NRT-CP
Rated power supply Wide range from 12 to 24 VDC
Allowable voltage
fluctuation range
90% to 110% of rated voltage
Current consumption
(per display)
Red LED: 60 mA max. (at 24 VDC)
100 mA max. (at 12 VDC)
Green LED: 80 mA max. (at 24 VDC)
140 mA max. (at 12 VDC)
Input level Negative
logic
High: 4 V to power supply voltage
Low: 0 to 1.5 V
Ambient temperature Operating: −10 to 55°C (with no icing)
Storage: −25 to 70°C (with no icing)
Ambient humidity Operating: 35% to 85% (with no
condensation)
Insulation resistance 100 MΩ min. (at 500 VDC) between each
terminal and mounting panel
Dielectric strength 500 VAC, 50/60 Hz for 1 min between each
terminal and mounting panel
Noise immunity (See
note 2.)
Power terminal: ±500 V
Input terminals: ±500 V (normal mode)
±1,500 V (common mode)
Vibration resistance Destruction: 10 to 55 Hz, 0.75-mm double
amplitude
Shock resistance Destruction: 300 m/s2
Degree of protection IEC IP40 (portion on panel surface)
Compatible
connector
OMRON NRT-C/NRT-CN/NRT-CP
M7E
3
Installation
■Input Codes
Operation Examples of RBI and RBO
Zero suppression functions and RBO is low when the display is 0, the decimal point
is not lit, and RBI is low.
Example 1: Zero blanking is not required and the RBI input and RBO output of each
digit are open.
Example 2: Wired as shown when there is zero blanking. If the data of the rightmost
digit is 0, 0 will be displayed.
Example 3: Zero blanking is valid for only the digits on the left of the lit digit and
decimal point.
Example 4: Zero blanking is valid for the second digit and the following digits that are
on the right of the lit digit and decimal point. If the first- to fourth-digit
values are all 0 and the decimal point is lit with the fourth digit, 0. 0@@
will be displayed. (There is no data in @@.)
Note: Use RBO output for the connection with RBI input only.
NRT-@ Connector pin No.
Power supply input (+)
Zero suppress output
Zero suppress input
Data input
Decimal point input
Control input (latch input)
Control input (color selection input) (See note.)
Power supply input 0 V
Power
supply (+)
Power
supply 0 V
Power
supply
input0 V
Signal
inputs
Switching
regulator
Input
circuit/
driver
circuit
LED display
elements
Zero blanking
circuit
1.8 kΩ20 kΩ
Custom IC
Signal input
GND
+5 V
■Terminal Arrangement/Functions
Terminal Arrangement
Decimal Display Unit Unit Display Unit
■Block Diagram
Note: Circled numbers are the
connector pin numbers.
Terminal Functions
Terminal
symbol
Name Function
V Power supply Positive (+) power-supply terminal.
RBO Control
output
Low is output during zero blanking.
RBI Control input Turns OFF when the input is low while the decimal point is not lit and the
contents of display is 0.
A
B
C
D
Data inputs • Displays a digit or symbol corresponding to the value of the
binary code signal.
• Decimal display uses 0 to 9; nothing will be displayed for
higher values.
DP Data input The decimal point lights. Operates independently from the LE terminal.
LE Control input Latch input: The immediately preceding display condition is retained.
R/G Control input Set low for green display and high for red display. (See note.)
G Power supply 0-V power-supply (ground) input terminal (GND).
A (20)
B (21)
C (22)
D (23)
Signal Input Circuit
Negative Logic Standard
Model
Note: Values in parentheses apply to the
NRT-@ Connector's pin numbers.
Note: The R/G terminal is only for two-color models. It is
NC on the single-color models.
Note: Only for the M7E-02DRGN2.
Example 1
Example 2
Example 3
Example 4
Fourth digit Third digit Second digit First digit
M7E
4
Negative Logic Unit
•The display color will be green if the color control input of terminal 2 is set low and red if it is set high.
•All inputs are pulled up internally. Therefore high can be open.
*1 Either low or high.
*2 Even if the data input is 0 and RBI is low, "0." will be displayed if DP is low.
*3 Indicates the minus symbol (-) on the 7-segment display.
■External Connections
Refer to the Block Diagram on page 3 and Terminal Arrangement/Functions on page 3 before performing external connections for each Unit.
PLC Connections
Refer to your PLC operation manual before connecting the PLC.
Input signal Out-
put
Output display condition
Connector
pin No.
CEFGHD I J
Terminal
symbol
LE D C B A DP RBI RBO Decimal
Input
signals
HHHHHH L L Blank *2
HHHHHH H H 0
HHHHLH *1 H 1
HHHLHH *1 H 2
HHHL LH *1 H 3
HHLHHH *1 H 4
HHLHLH*1 H 5
HHL LHH *1 H 6
HHL L LH *1 H 7
HLHHHH *1 H 8
HLHHLH*1 H 9
HLHLHH*1 H -*3
HLHLLH*1 H Blank
H L L H H H *1 H Blank
HLLHLH*1 H Blank
H L L L H H *1 H Blank
H L L L L H *1 H Blank
*****L*1 H
HHHHHL *1 H 0*2
L *1 *1 *1 *1 *1 *1 H Retains the display conditions of
A to D terminals before LE goes
low. DP is not related.
M7E-02D@N2 Negative Logic Models Use an NPN Transistor Output Unit for the PLC Output Unit.
Connected to CS1W-OD261, CJ1W-OD231 Transistor Output Unit
M7E
5
Operation
■Operation Timing (Input Signal Timing)
■Operation Chart
The following example shows the relationship between each input terminal and the display condition.
ts
tw
th
Data latch
Data input
signals A to D
Latching
input LE
tw: Pulse duration
th: Hold time
ts: Setup time
Data latchData read
H
L
Negative Logic
Pulse duration (tw) 1.5 ms min.
Hold time (th) 0.75 ms min.
Setup time (ts) 2.25 ms min.
Data
Terminal
displayed
value
0123456789 Description
Input
signals
A
(20)
H
L
Inputs the data signal as
BCD (or binary code)
B
(21)
H
L
C
(22)
H
L
D
(23)
H
L
DP H
L
Low when the decimal point
lights. The decimal point
can light without regard to
the LE signal.
LE H
L
Low when all the display is
to be retained. (High is
maintained until the signal
goes low.)
Display
condition
---
Remarks ---
The "1" display is retained
by the LE signal.
The "5" display is retained
by the LE signal.
M7E
6
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■Accessories (Order Separately)
End Plate
M7E-022M(-1)
Face Plate
•A face plate is used with the Unit Display Unit, which incorporates a surface-lighting LED.
•The following face plates are available.
•Custom face plates can be made. Refer to the following for the procedure.
Character Dimensions (Unit: mm)
Example of Dimensions
25.4
7°
14.7
44
33.53
43
30
B−1
4.5 4.5
71
30663030
A
48(53.2)
B
45
0
−0.4
M7E-02@N2
LED
Panel Cutout
Panel thickness: 1 to 3 mm
(Unit: mm)
Number of
Units (n)
Dimension A
(n x 30 + 12)
Dimension B
(n x 30 +10)
142±0.4 40±0.4 Note: 1. Dimensions
A and B
include End
Plates.
2. Tolerance
is ±0.4 mm
unless
otherwise
specified.
272±0.4 70±0.4
3102±0.4 100±0.4
4132±0.4 130±0.4
5162±0.8 160±0.8
6192±0.8 190±0.8
7222±0.8 220±0.8
8252±0.8 250±0.8
44
33.5
(4.3)4.5
4
5.8
4.5
(53.2)
48
4.5 (4.3)
5.8
44
33.5
(53.2)
48
Left End Right End
SymbolABCFGHJJC1KVZ1
Display
contents
Height -10.5 14.0 18.0 10.5 10.5 10.5 18.6 14.0 14.0 14.0
Width -18.0 13.0 13.0 17.5 16.0 10.8 17.2 14.0 15.0 14.0
B
Blank
display
Width 18.0
Height
10.5
M7E
7
Safety Precautions
■Precautions for Correct Use
Display Unit
Refer to Safety Precautions for M7E.
Procedure for Making Face Plates for
M7E-02 Unit Display Unit
Custom face plates can be made according to the following
guidelines.
1. Prepare a blank Unit Display Unit (M7E-02UR2-A or M7E-
02UG2-A) for the desired lighting color.
2. Take transparent polyester film (with thickness equivalent to
0.188) and cut it to the following dimensions.
3. Print solid black on the film covering all area except the character
and so that the desired unit character is within the character
display range (with the unit character transparent).
4. Install the completed face plate into the Unit Display Unit.
27.6 0
−0.3
45.9 0
−0.3
2
15
18
Face Plate Dimensions
Character display range
Character display range
Face Plate Dimensions
Diffusion film
Filter
Surface-lighting LED (red)
Face plate now
completed (not included
with the M7E-02U@2-A)
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
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Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
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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
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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.
2017.4
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 2017 All Right Reserved.