DMC EM Series User manual

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EM Series
10.1” Wide
24VDC
Open Frame Panel Computer
With Linux Embedded Touch Screen
EM8/EMG8
Model:
EM8-W310A7-0024-207
EMG8-W310A7-0024-207
Instruction Manual
DMC Co., Ltd.
https: //www.dush.co.jp/english/

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Table of Contents
Introduction.....................................................................................................................................3
Notes..............................................................................................................................................3
Precautions for Safe Use ...............................................................................................................3
Warnings.....................................................................................................................................4
Cautions......................................................................................................................................5
Handling of LCD Panels .............................................................................................................7
Handling of Resistive Touch Screens .........................................................................................7
Handling of Projective Capacitive Touch Screen........................................................................7
Handling of microSD Memory Card............................................................................................8
Packaged Contents........................................................................................................................9
Name of Parts ..............................................................................................................................10
Installation ....................................................................................................................................12
Installing Conditions..................................................................................................................12
Mounting...................................................................................................................................13
6-2-1 Panel Opening Examples ......................................................................................... 13
6-2-2 Precautions for Mounting .......................................................................................... 14
Wiring Procedure..........................................................................................................................16
Wiring Locations .......................................................................................................................16
Inserting and Removing of the microSD card ..............................................................................18
Inserting the microSD card .......................................................................................................18
Removing the microSD card.....................................................................................................19
Calibration ....................................................................................................................................20
Sensor Sensitivity Calibration...................................................................................................20
Coordinate Calibration..............................................................................................................20
How to Boot Up ............................................................................................................................21
Maintenance.................................................................................................................................21
Display......................................................................................................................................21
Regular Maintenance ...............................................................................................................21
Warranty and Repair ....................................................................................................................22
Inquires.....................................................................................................................................22
Warranty ...................................................................................................................................22
Production Discontinuance.......................................................................................................22
Repair Condition.......................................................................................................................22
Others...........................................................................................................................................23

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Introduction
Thank you for choosing DMC products.
Please read this manual carefully and use our product correctly.
This manual describes the 10.1 " panel computer.
In this manual, the 10.1" panel computer will be referred to as EM8.
Notes
■Reproduction and/or duplication of this product and/or this manual, in any form, in whole or in part, without
permission is strictly prohibited.
■Contents of this product and/or this manual are subject to change without prior notice.
■Although all efforts have been made to ensure the accuracy of this product and/or the contents in this manual,
should you notice any errors or have any questions, feel free to contact and notify us.
■DMC shall not be held liable in any way for damages or losses, nor be held responsible for any claims by a third
party as a result of using this product.
Precautions for Safe Use
Precautions are noted in this manual in order for the product to be used safely. Read this manual along with other related
manuals carefully to understand the correct handling and functions of the EM8.
Safety Symbol Legends
Safety symbols listed below are noted throughout this manual for the EM8 to be used correctly. These symbols stand for
important safety information as noted below.
Warning
Indicates a procedure, condition, or statement that, if not strictly observed, could result in
severe human injuries or loss of life.
Caution
Indicates a procedure, condition, or statement that, if not strictly observed, could result in
human injuries or property damage.
Indicates a procedure, condition, or statement that is strictly prohibited for correct use of the
equipment. (Forbidden)
Indicates a procedure, condition, or statement that must be strictly followed for correct use of
the equipment. (Mandatory)

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Warnings
Warnings!
Warnings for Design
Designing switches that might cause human injuries and/or property damages on the touch screen is strictly
prohibited. Unintentional output signals due to malfunction of the main body, units, and/or cables, etc. can cause
serious injuries. Design the system so that switches with major functions are equipped on other devices.
Designing safety related switches on the EM8 is prohibited. Switches related to safety, such as emergency stop
switches, should be made on a different hardware.
Design the system so the device will not malfunction due to communication abnormalities between the EM8 and
the host controller. Failure to follow may result in injuries to the human body or damages to properties.
Do not use EM8 as a major warning system that may cause injuries/ serious material damages, and or production
stoppage. Control devices related to critical warning displays and warnings should be structured on an independent,
redundant hardware system or a mechanical interlock.
EM8 is not intended for use for aircraft equipment, aerospace instruments, trunk line communication equipment,
nuclear power control equipment, and medical equipment that concerns life support, and or other equipment that
concerns high reliability and safety. It cannot be used for these purposes.
When using the EM8 for purposes that concern high reliability and safety functions and accuracy such as transport
equipment (trains, automobiles, ship, etc.), crime/disaster prevention devices, various safety devices, and medical
equipment that does not concern life support, be sure to have safety features including redundancy and false
operation prevention measures incorporated into the entire system.
Display will black out when the backlight goes out. If mistakenly operated in this condition, it might result in improper
operation. Do not design touch-switches that might cause human injuries and material damages on the EM8.
Phenomenon as below will occur when the backlights go out:
(1) Panel will go out even if the Backlight OFF function is not set.
(2) Display does not recover at touch after the backlight goes off as well as the display.
Warnings for Handling
Do not modify/disassemble the EM8. It may cause fires and/or electric shocks.
Do not use around flammable gas. It may cause explosions.
Do not put any kind of liquid, such as water, and metals into the product. It may cause fire and/or electrical shocks.

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Warnings for Wiring
For wiring and installation, please refer to the manual and specifications in order to conduct it correctly. It may
cause fires and/or electric shocks if failed to do so.
Before installing the power cable, make sure power is not being supplied from power source. It may cause
electrical shock if failed to do so.
Do not use power voltage other than what is specified. It may cause fires and/or electric shocks.
Warnings for When Turning ON the Power and During Maintenance
Do not connect or disconnect the communication cable with the host while the power is on.
Cautions
Cautions!
Cautions for installation
Make sure cables are securely connected to connectors to avoid wrong input and output due to loose
connection.
Cautions for When Turning ON the Power and During Maintenance
During access to the microSD, do not turn off power of the EM8 or pull out the microSD. It might damage the
data inside of the microSD.
Cautions for Wiring
Make sure foreign objects such as chips and scaps from wiring do not enter the EM8. It may cause fire or
malfunctions when failed to do so.
Cautions for Disposal
When disposing the product, please treat it is as industrial waste.

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To Avoid Malfunctions
Do not press down hard on the display area of EM8 with hard objects. It may break the LCD panel and may
cause injuries. Also, do not press down on the panel with sharp objects such as mechanical pencils or drivers. It
may damage the displays.
Installing EM8 in areas out of the range of the specification will cause failures.
Do not use in areas where temperature rises and dwells rapidly. It may cause failures.
Avoid areas where rapid temperature change could cause condensation. It may cause failures.
Do not put any kind of liquid, such as water, or any metal parts into EM8. It may cause failures or electric shocks.
Do not use or keep EM8 in locations with exposure to direct sunlight, high temperature, fine particles, humidity,
and/or vibrations.
Avoid using and storing in areas where chemicals are vaporized and emanating in the air, or in places where
chemicals can adhere to the product
Acid, Alkali, other saline chemicals: May cause failures due to corrosion.
Organic solvents: May cause fires.
If the surface of EM8 gets dirty, wipe with a dry, soft cloth damped with a neutral detergent then wrung dry. Do
not use thinner or organic solvents.
LCD of display will deteriorate with ultraviolet rays. Do not use or keep in areas under strong ultraviolet rays.
When stored in sub-ambient temperature, LCD of display might coagulate and cause damage to the panel. Also,
when stored in over-ambient temperature, the LCD will turn into isotropic liquid and will not turn back to its
original state. Please store in the specified ambient temperature.
After turning off the power of EM8, leave it off for a while before turning the power back on. It might not function
normally if failed to do so.
Be sure to take back-up assuming the loss of data in the EM8 in an event of an unexpected accident.

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Handling of LCD Panels
1) The LCD display contains skin-irritating materials. If liquid materials flow out due to damages and comes in contact
with skin, wash the area under running water for at least 15 minutes.
2) The LCD display might have uneven brightness according to the contents being displayed. This is not a
malfunction.
3) Minute spots (dark or bright) may occur in the LCD display elements. This is a basic characteristic of the LCD
display and not a malfunction.
4) When LCD display is viewed outside the specified view angel, the color might seem different. This is a basic
characteristic of the LCD display and not a malfunction.
5) When displaying a same image for a long period of time, it might cause an afterimage. This is a basic characteristic
of the LCD display and not a malfunction.
In order to avoid afterimages please follow the below procedures:
1. When leaving the same image displayed, use the” display off” function.
2. Change the image displayed periodically and do not display the same image for a long period of time.
Handling of Resistive Touch Screens
1) Please be warned that applications that require for one point to be pressed for a prolonged time may cause
failures due to the touch screens structural characteristics.
2) The touch screen is made of glass. Glass becomes easy to break if scratched. Please handle with care and avoid
glass from coming in contact other glass and hard objects.
3) Due to the characteristics of the touch screen, pressing a little outside the display area may be detected as the
coordinates of the edge of the touch screen. Please consider the above when designing the application.
4) Touch screen coordinates may shift due to aging or depending on its operating environment. Conduct calibration
of the touch screen to correctly set the coordinates.
5) Please be careful when handling the glass. The glasses are not chamfered and can easily cause injuries.
Handling of Projective Capacitive Touch Screen
1) If elements that change ambient environments or electric fields (capacitors with large capacity, power units, and
materials with high permittivity such as metals) are set close to the product, it might have impact to the coordinate
detection. Make sure to keep a good distance from the above unstable elements as much as possible when
designing.
2) The touch screen surface is made of glass. Glass is subject to break once scratched. Please handle with care
and avoid glass from contacting other glass and hard objects.
3) Touch screen may not operate correctly when there is moisture on the surface. When moisture is detected on the
touch screen surface, please wipe it dry before use.
4) When designing applications, consider the fact that areas slightly outside the display might be read as a
coordinate due to the characteristics of the touch screen when touched.
5) Glass edge surface can easily cause injuries. Please handle with care.

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Handling of microSD Memory Card
1) Use a computer to take backup to an outside media (hard disc, CD-R, etc.) for important data on a regular
basis. We will not be held liable for any data lost or changed that is registered in the microSD card.
2) Do not remove the microSD card or turn the unit power off during write or read. It may cause the data inside the
unit or the microSD card to be lost or damaged (deleted).
3) Please keep the socket terminal of the memory cards and microSD card clear of foreign objects.
4) Do not touch the terminals with fingers or metal objects. It may cause malfunctions.
5) When inserting the microSD card, make sure it is inserted in the correct direction.
6) Do not apply undue force when inserting/removing.
7) Do not insert anything other than a microSD card into the microSD card socket. Also be careful of any foreign
objects entering the socket.
8) Do not bend, break, or place under heavy objects.
9) Do not place in areas with sudden temperature change. Condensing will cause malfunctions.
10) Do not place in areas near corrosive chemicals or where corrosive gases evolve. It may cause malfunctions.
11) When cleaning, wipe with a dry soft cloth.
12) When carrying and storing, place the microSD card memory card in its protection case.

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Packaged Contents
Below are included in the package. Please check before use.
*Maximum number of units that could be stored: 5 units
＜Notes＞
Although efforts have been made to ensure quality and packaging at shipment, should you notice any damage or a
shortage of parts, please contact a dealer or DMC for additional instructions before use.
Main Unit 5 units/box*

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Name of Parts
■Backside：EM8-W310A7-0024-207
■Backside：EMG8-W310A7-0024-207
①USB Host Interface
②USB Device Interface
③Power Input Interface
④Ethernet (LAN)
⑤Serial Port (SIO1)
⑥Serial Port (SIO2)
⑦SIO2 Setting Switch
⑧LAN Status LED
⑨SPI/PWM Audio Interface
⑩Battery Input 2
⑪Battery Input 1
⑫DIO Interface
①
⑨
⑧
⑤
⑦
②
③
④
⑥
⑫
⑪
⑩
⑪
⑫
⑨
⑩
⑧
⑤
⑦
⑥
①
②
③
④