Pro-face PL-6920 Series User manual

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PL-6920/PL-7920 Series
Panel Computer
User Manual

1
Preface
PL-6920/PL-7920 Series User Manual
Introduction
The PL-6920/PL-7920 series (PL) of Panel Computers are multipurpose
factory automation (FA) computers, which embody Pro-face’s latest, cost-
effective architecture. Before using the PL, read this manual thoroughly to
familiarize yourself with the PL’s operation procedures and functions.
1. It is forbidden to copy the contents of this manual in whole, or in part, without the per-
mission of the Digital Electronics Corporation.
2. The information in this manual is subject to change without notice.
3. This manual was written with care; however, if you should find any error or omissions,
please contact Digital Electronics Corporation and inform them of your findings.
4. Regardless of the above clause, Digital Electronics Corporation shall not be held respon-
sible for any damages or third-party claims for damages or losses resulting from the use
of this product.
Product names used in this manual are the trademarks of their respective manufacturers.
©Copyright 2004, Digital Electronics Corporation
Windows®95 OSR2 or later, Windows®98 SE, Windows NT®4.0, and Windows®
2000 are registered trademarks of the Microsoft Corporation.
NOTE:

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Preface
PL-6920/PL-7920 Series User Manual
This manual includes the following cautions concerning procedures that must be
followed to operate the PL correctly and safely. Prior to operating the PL, be sure to
read this manual and any related materials thoroughly to understand the correct opera-
tion and functions of this unit.
Safety Icons
To allow you to use the PL correctly, throughout this manual, the following icons
are provided next to operations requiring special attention. These icons are used to
describe the following situations:
Indicates situations where severe bodily
injury, death or major equipment damage
may occur.
Indicates situations where slight bodily
injury or machine damage can occur.
Caution
Warning
Essential Safety Precautions
WARNINGS
• To avoid the possibility of an electric shock, be sure to
disconnect the power cord to the PL before connecting it
to the main power supply.
• A fire or electrical shock may occur if voltages used with
the PL are beyond the specified range. Be sure to use only
the specified voltage.
• Before opening the PL’s protective cover, be sure to turn
the unit’s power OFF. This is because the PL’s internal
parts carry high voltages.
• To avoid fires or electrical hazards, do not modify the PL in
any way.
• Do not create touch panel switches that are used to either
control or to ensure the safety of equipment and person-
nel. Mechanical switches, such as an emergency stop
switch, a deadman (two-handed) start switch, etc., must
be installed and operated via a separate control system.

3
Preface
PL-6920/PL-7920 Series User Manual
WARNINGS
• Do not create touch panel switches which could possibly
endanger the safety of humans and equipment. This is due
to the possibility of a malfunction in the PL or its cable(s),
causing the output of a signal that could result in a major
accident. All of a system’s major, safety-related switches
should be designed to be operated separately from the PL.
•After the PL’s backlight burns out, unlike the PL’s
“Standby Mode”, the touch panel is still active. If the op-
erator fails to notice that the backlight is burned out and
touches the panel, a potentially dangerous machine miss-
operation can occur.
If your PL's backlight suddenly turns OFF, use the following
steps to determine if the backlight is actually burned out.
1) If your PL is not set to "Standby Mode" and the screen
has gone blank, your backlight is burned out.
2) Or, if your PL is set to Standby Mode, but touching the
screen does not cause the display to reappear, your
backlight is burned out.
•If metal particles, water or other types of liquids contact
any of the PL’s internal parts, immediately turn the unit’s
power OFF, unplug the power cord, and contact either
your PL distributor or the Digital Electronics Corporation.
•Read and understand Chapter 4 “Installation and Wiring”
thoroughly in order to select an appropriate installation
location for the PL.
•Before either plugging in or unplugging a board or inter-
face connector, be sure to turn the PL’s power OFF.

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Preface
PL-6920/PL-7920 Series User Manual
WARNINGS
•To prevent a possible explosion, do not install the PL in
areas containing flammable gases.
•The PL is not appropriate for use with aircraft control
devices, aerospace equipment, central trunk data trans-
mission (communication) devices, nuclear power control
devices, or medical life support equipment, due to these
devices’ inherent requirements of extremely high levels of
safety and reliability.
•When using the PL with transportation vehicles (trains,
cars and ships), disaster and crime prevention devices,
various types of safety equipment, non-life support re-
lated medical devices, etc. redundant and/or fail-safe
system designs should be used to ensure the proper de-
gree of reliability and safety.
•Do not push on the PL’s screen too strongly, with either
your finger or with a hard object. Excessive pressure can
scratch, crack or damage the screen. Also, do not use a
pointed object, such as a mechanical pencil or screw-
driver, to press any of the touch panel’s switches, since
they can damage the display.
•If the screen becomes dirty or smudged, moisten a soft
cloth with diluted neutral detergent, wring the cloth well,
and wipe the display. Do not use thinner or organic sol-
vents.
•Avoid exposing the PL to, or operating the PL in direct
sunlight, high temperatures and humidity, and in areas
where excessive dust and vibration will occur.
CAUTIONS

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Preface
PL-6920/PL-7920 Series User Manual
•Avoid using the PL in areas where sudden, extreme
changes in temperature can occur. This may cause con-
densation to form inside the unit, possibly leading to an
accident.
•To prevent the PL from overheating, be sure its air circu-
lation vents are clear and clean, and keep the unit’s
operation area well-ventilated.
•Avoid operating or storing the PL near chemicals, or
where chemicals can come into contact with the unit.
When PL Hard Disk (HDD) data is lost:
•The Digital Electronics Corporation cannot be held re-
sponsible or provide any compensation for damage(s)
caused by the loss of data stored in the PL’s hard disk
drive (HDD). It is therefore strongly suggested that all
important data and software be backed up regularly to
an external data backup device.
•Please be aware that the Digital Electronics Corporation
bears no responsibility for any damages resulting from
the customer’s application of this unit’s hardware or
software.
• Since the PL unit’s hard disk drive (HDD) is a consum-
able item, i.e. it has a limited lifetime, be sure to back up
its data regularly and prepare a spare HDD unit.
•To prevent file data damage, be sure to shut down the
PL’s OS before turning OFF the main power.
•After turning OFF the PL's power, wait until the internal
HDD stops spinning before turning on the power again
(approx. 5 seconds).
•When the PL unit's standard display is connected to the
PL using the USB connection, wait three (3) seconds
before turning the power ON again.
CAUTIONS

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Preface
PL-6920/PL-7920 Series User Manual
LCD Usage and Handling


The PL’s LCD contains a strong irritant. If the panel is ever cracked and the
LCD’s liquid contacts your skin, be sure to wash it with running water for at
least 15 minutes. If any of this liquid should enter your eye, be sure to flush your
eye with running water for more than 15 minutes and see a doctor as soon as
possible.


The brightness of the LCD screen will depend on the screen’s current display
and the LCD’s contrast adjustment. Any brightness variations that result are
normal for LCD displays.


There are minute grid-points (Dark or Light points) on the LCD surface. These
points are not defects and are a part of the PL unit’s design.


The displayed color will look different when viewed from an angle outside the
specified view angle. This is also normal.


When installing this unit, be sure that the screen is viewable from within the
designated viewing angles. The screen image being difficult to see from outside
its recommended viewing angle is normal.


Displaying a single screen image for long periods of time can cause an afterimage
to remain on the screen. To correct this, turn the unit OFF for 5 to 10 minutes,
then ON again. This phenomenon is a common attribute of LCD displays, and
is not a defect. To prevent this effect, you can:
1) Use the Display OFF feature; if the same image is to be displayed for a long
period of time.
2) Change the screen display periodically to prevent the displaying of a single
image for a long period of time.

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Preface
PL-6920/PL-7920 Series User Manual
Table of Contens
Introduction ..............................................................................................................1
Essential Safety Precautions ...................................................................................2
Table of Contens ......................................................................................................7
InformationSymbols...............................................................................................11
PL Series Panel Types...........................................................................................11
Package Contents .................................................................................................12
PL Series Features................................................................................................13
UL/c-UL (CSA) Application Notes ..........................................................................14
CE Marking ...........................................................................................................15
Chapter 1 Overview
1-1 Prior To Using the PL...................................................................................1- 1
1 Setting Up the Touch Panel Connection ..................................................1- 2
2 Using the USB Interface .........................................................................1- 2
3 Using the LAN Interface ..........................................................................1- 3
1-2 System Configuration ..................................................................................1- 3
1-3 Options .......................................................................................................1- 4
Chapter 2 Specifications
2-1 General Specifications ................................................................................2- 1
1 Electrical Specifications ..........................................................................2- 1
2 Environment Specifications .....................................................................2- 2
3 Dimensions.............................................................................................2- 3
2-2 Performance Specifications.........................................................................2- 4
1 Performance Specifications ....................................................................2- 4
2 Display Functions....................................................................................2- 4
3 Expansion Slots ......................................................................................2- 5
4 Clock(RTC) Accuracy ..............................................................................2- 5
2-3 Interface Specifications ...............................................................................2- 6
1 Printer Interface (LPT1) ..........................................................................2- 6
2 Keyboard Interface ..................................................................................2- 7
3 MouseInterface.......................................................................................2- 7
4 RS-232C Interface (COM1/COM2/COM3)...............................................2- 8
5 RASInterface..........................................................................................2- 9
6 USBInterface........................................................................................2- 10

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Preface
PL-6920/PL-7920 Series User Manual
2-4 Part Names and Features .........................................................................2- 11
2-5 PL Dimensions..........................................................................................2- 13
1 General Dimensions .............................................................................2- 13
2 External Dimensions (with Installation Fasteners installed) ....................2- 17
3 PL and RS-232C/RS-485 Conversion Unit (PL-RC500) Dimensions.....2- 21
4 Full Sized Cover Attachment Dimensions .............................................2- 25
5 Panel Cut Dimensions..........................................................................2- 26
6 InstallationFasteners.............................................................................2- 28
Chapter 3 Installing Optional Units and Expansion Boards
3-1 Installing Options and Expansion Boards .....................................................3- 1
1 Removing the Rear Maintenance Cover ..................................................3- 2
2 Installing the DIM Module (PL-EM500 / PL-EM128/ PL-EM256) ..............3- 4
3 Installing the FDD Unit (PL-FD200) .........................................................3- 5
4 Installing the FDD Unit (PL-FD210) .........................................................3- 6
5 Removing / Installing the HDD Unit (PL-HD220/PL-HDX920-W2k/ML) ....3- 8
6 Installing an Expansion Board..................................................................3- 9
7 Connecting the CD-ROM Unit (PL-DK200)............................................3- 10
8 Removing the Electric Fan Unit.............................................................3- 11
Chapter 4 Installation and Wiring
4-1 Installingthe PL ...........................................................................................4- 1
1 InstallationCaution ..................................................................................4- 1
2 InstallationProcedures ............................................................................4- 3
4-2 Wiring the PL ..............................................................................................4- 7
1 Connecting the Power Cord ....................................................................4- 7
2 Power Supply Cautions ...........................................................................4- 9
3 Grounding Cautions ..............................................................................4- 10
4 Cautions When Connecting I/O Signal Lines..........................................4- 10
Chapter 5 System Setup
5-1 Setup Procedures .......................................................................................5- 1
5-2 System Parameters.....................................................................................5- 2
1 STANDARD CMOS FEATURES ............................................................5- 2
2 IDE HDD AUTO DETECTION .................................................................5- 4
3 ADVANCED BIOS FEATURES ..............................................................5- 5
4 ADVANCED CHIPSET FEATURES .......................................................5- 8

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Preface
PL-6920/PL-7920 Series User Manual
5 INTEGRATED PERIPHERALS .............................................................5- 10
6 POWER MANAGEMENT SETUP.........................................................5- 13
7 PNP/PCICONFIGURATION..................................................................5- 15
8 IRQResources......................................................................................5- 16
9 DMA Resources....................................................................................5- 17
10PC Health Status ..................................................................................5- 18
11Frequency/VoltageControl ....................................................................5- 20
12Load Fail-Safe Defaults ........................................................................5- 21
13Load Optimized Defaults.......................................................................5- 21
14Set Supervisor Password......................................................................5- 21
15Set User Password ...............................................................................5- 21
16Save & Exit Setup .................................................................................5- 22
17Exit Without Setting ...............................................................................5- 22
Chapter 6 Setting Up Your PL OS
6-1 CD-ROM Contents ...................................................................................... 6-1
1 Diagram.................................................................................................. 6-1
6-2 Setting Up Your PL OS ................................................................................ 6-2
1 Setting Up HDD with no installed OS....................................................... 6-2
2 Setting Up OS preinstalled HDD ............................................................. 6-5
6-3 Installing Drivers .......................................................................................... 6-6
6-4 Application Features ................................................................................. 6-10
1 Uninstalling PL-X920 Driver and Utility .................................................. 6-12
6-5 Windows NT®4.0 / Windows®2000 /Windows®XP Cautions..................... 6-12
1 Automatic System Log-On Setup .......................................................... 6-12
2 Using an Uninterrupted Power Supply.................................................... 6-13
3 When Changing the System Design ...................................................... 6-13
4 Changing to the NTFS File System........................................................ 6-14
Chapter 7 Maintenance and Inspection
7-1 Regular Cleaning.........................................................................................7- 1
1 Cleaning the Display ...............................................................................7- 1
2 InstallationGasket Replacement..............................................................7- 2
7-2 Cleaning the Filter .......................................................................................7- 2
7-3 Changing the PL Backlight...........................................................................7- 4
7-4 Periodic Inspection Items...........................................................................7- 12

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Preface
PL-6920/PL-7920 Series User Manual
Appendices
A-1 Hardware Configuration........................................................................... App-1
1 I/OMap ............................................................................................... App-1
2 Memory Map ....................................................................................... App-2
3 InterruptMap ....................................................................................... App-3
A-2 RAS Feature ...........................................................................................App-4
1 PL's RAS Features ............................................................................. App-4
2 RAS Feature Details ........................................................................... App-5
3 RAS Feature Overview...................................................................... App-10
A-3 System Monitor ..................................................................................... App-11
1 Setup Procedure............................................................................... App-11
2 System Monitor Property Settings (PL_Wps.exe) .............................. App-12
3 System Monitor Operation (PL_Smon.exe) ....................................... App-13
4 Error Messages ................................................................................App-15
5 Error Displays When Using Event Viewer ..........................................App-16
A-4 System Monitor/RAS FeatureAPI-DLL ..................................................App-18
1 OperationEnvironment......................................................................App-18
2 Class Contents..................................................................................App-20
3 Visual C Functions ............................................................................App-21
4 Visual C Function Specifications (Details) .........................................App-22
5 Visual C++ Functions ........................................................................App-42
6 Visual C++ Function Specifications (Details) .....................................App-43
7 Visual Basic Functions...................................................................... App-72
8 Visual Basic Function Specifications (Details)................................... App-73
A-5 Backlight ControlAPI-DLL .....................................................................App-95
1 OperationEnvironment......................................................................App-95
2 Class Contents..................................................................................App-97
3 Visual C Functions ............................................................................App-98
4 Visual C Function Specifications (Details) .........................................App-98
5 Visual C++ Functions ......................................................................App-100
6 Visual C++ Function Specifications (Details) ...................................App-100
7 Visual Basic Functions....................................................................App-103
8 Visual Basic Function Specifications (Details)................................. App-103
A-6 ConsentAgreement.............................................................................App-106

11
Preface
PL-6920/PL-7920 Series User Manual
Information Symbols
This manual uses the following icons:
Indicates a warning or a product limitation. Be sure to follow the instruc-
tions given with this icon to insure the safe operation of the PL.
Contains additional or useful information.
Indicates terms or items that require further explanation. See the footnote
on that page.
Indicates pages containing related information.
Indicates steps used to accomplish a given task. Be sure to follow these
steps in the order they are written.
Refers collectively to the PL-6920, PL-7920 and PL-B920 Series units.
*
1), 2)
PL Series Panel Types
Model Number:
PL*92 *-T4*
A B C D E
PL-X920 Series
6 PL-6920 Series Unit
7 PL-7920 Series Unit
0 4-slot type
1 2-slot type
C T TFT Color LCD display
D 4 CE Marking, UL/c-UL (CSA) Approval
1CPU:700MHz
2CPU:1GHz
A
B
E

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Preface
PL-6920/PL-7920 Series User Manual
Package Contents
The PL package should include the following items:
Be careful when install-
ing the PL not to dam-
age the built-in HDD
Power Cord
PL Unit
(PL-6920/PL-6921/PL-7920/PL-7921)
This cord is designed only for AC100V use.
Any other voltage will require a different
cord.
Installation Brackets
CD-ROM (1)
(PL-X920 Series User
Manual & Driver CD)
Installation
Guide
Installation Guide
(English1/Japanese1)
For details, refer to Chapter 6 - PL Setup
If your PL unit contains a built-in accessory, that accessory’s Installation Guide will also
be included in the PL’s packing box. Please check that all items normally included with
that accessory are also included in this box.
PL-6920Series (8)
PL-7920Series (12)

13
Preface
PL-6920/PL-7920 Series User Manual
PL Series Features
The PL-6920/PL-7920 series displays are equipped with the following
features:
The Latest, High-Performance Architecture
Designed around the Pentium®III 700MHz CPU or 1GHz, the PL utilizes the type
of high performance architecture that offers you superior compatibility. Add to this
unrivalled support of the Windows®XP and other widely used operating systems.
Bright LCD with a Wide Viewing Angle
The PL’s large TFT LCD display offers excellent visibility and brightness.
Pro-face’s top of the line TFT color LCD allows you to create detailed and
powerful visual images, with excellent brightness, a wide viewing angle, and a
display capable of 64K colors.


Easy Front Panel Installation
The PL is designed to be installed easily into the front of any panel or device. It
is also rugged enough for use in harsh, industrial environments, such as those
found in the factory automation industries and provides protection equivalent
to the IP65f standard.
High Resolution, Analog-Resistance-Film Touch Panel
Standard equipment with the PL is a high resolution 1024 x 1024 touch panel,
and the mouse emulation utility provides mouse-like functionality and pointer
control.
Highly Expandable
Choose from the PL-6921/PL-7921 series unit - with 2 ISA slots, or the PL-
6920/PL-7920 series unit - with 4 ISA slots. In addition, the 6921/PL-7921 unit
provides a single PCI bus (slot 2), while the PL-6920/PL-7920 unit provides
two PCI buses (slots 2 and 3). Also, these slots can accommodate both Digital’s
own optional boards as well as other commercially available expansion boards.
Digital also offers a wide variety of optional products, such as a -5/-12V DC
power unit, DIM memory modules, etc.

14
Preface
PL-6920/PL-7920 Series User Manual
UL/c-UL (CSA) Application Notes
The PL6920-T4* / PL6921-T4* /PL7920-T4* /PL7921-T4* Series units are
(c)UL 1950 recognized components. (UL File No. E171486). Please pay
special attention to the following instructions when applying for UL/c-UL
(CSA) approval for machinery which includes any of these PL units.
The PL conforms as a component to the following standards:
UL 1950, Third Edition, dated March 1,1998 (Standard for Safety of Infor-
mation Technology Equipment, including Electrical Business Equipment)
CSA-C22.2 No. 950-95 (Standard for Safety of Information Technology Equip-
ment, including Electrical Business Equipment)
PL6920-T4* (UL Registration Model No.: 2780054-04)
PL6921-T4* (UL Registration Model No.: 2780054-03)
PL7920-T4* (UL Registration Model No.: 2780054-02)
PL7921-T4* (UL Registration Model No.: 2780054-01)
-Equipment with a PL mounted in it requires UL/c-UL(CSA) evaluation
for the combination of the PL and equipment.
- The PL must be used as a built-in component of an end-use product.
- Use the PL indoors only.
-When connecting the PL’s power cord, be sure to use a cord that is appro-
priate for the current and voltage used and that has conductive wires that
are 0.75 mm2or larger.
-With an end-use product which includes the PL, be sure to place the PL’s
Power cut-off switch where the unit’s operator can easily reach it.
-Danger of explosion if backup battery is incorrectly replaced. Replaced
only with same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.
-Be sure the unit the PL is built into uses a UL1950 compatible equipment
structure.

15
Preface
PL-6920/PL-7920 Series User Manual
CE Marking
The PL6920-T4* / PL6921-T4* /PL7920-T4* /PL7921-T4*units are CE
marked, EMC compliant products.
<Complies with the following Standards>
Safety
EN60950
EMI
EN55011 (Group1 Class A), EN61000-3-2, EN61000-3-3
EMS (EN61000-6-2)
EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5
EN61000-4-6, EN61000-4-8, EN61000-4-11
If following requirements are not met, the PL may fail to meet EN60950 standard
requirements.
-The PL must be used as a built-in component of an end-use product.
-Use the PL indoors only.
-When connecting the PL’s power cord, be sure to use a cord that is appropri-
ate for the current and voltage used and that has conductive wires that are
0.75 mm2or larger.
-When installing the PL in a metal panel or cabinet, be sure to place the PL’s
Power disconnect device (cut-off switch) where the unit’s operator can eas-
ily reach it.
-There is a danger of explosion if the backup battery is incorrectly replaced.
This battery should be replaced only with same or equivalent type recom-
mended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.
-Be sure the cabinet/enclosure the PL is built into uses an EN60950 approved
sheet steel structure.

16
Preface
PL-6920/PL-7920 Series User Manual
MEMO

1 - 1
PL-6920/PL-7920 Series User Manual
Overview
Chapter1Overview
Prior to actual use, be sure to set up your PL as follows.
Install the OS
Install Hard Disk Refer to 3-1-5 Removing/Installing HDD Unit
Turn PL ON Refer to 4-2 Wiring the PL
Setup System Refer to Chapter 5 System Setup
Refer to 6-2-1 Setting UP HDD with no installed
OS
Refer to 6-2-2 Setting UP OS preinstalled HDD
Using the PL with a Hard Disk Unit Installed


After completing the hardware setup, before any data or applications can be
placed on the drive, the OS (Windows®or MS-DOS®, etc.) must be used to ini-
tialize the HDD and create partitions. For details concerning these procedures,
refer to the OS maker’s installation manual.


The PL’s hard disk is designed for use with the Windows®95, Windows®98
Second Edition, WindowsNT®4.0, Windows®2000, Windows®XP or later OS.
The Mirror Disk unit will operate only with the WindowsNT®4.0 operating sys-
tem. Other operating systems do not support this driver software, etc.


After turning the PL OFF, be sure to wait at least 5 seconds before turning ON
again. If the unit is stated within 5 seconds, it may not start up correctly.
1-1 Prior To Using the PL
1-2 System Configuration
1-3 Options
1-1 Prior To Using the PL
Setup Preinstalled HDD
(Windows®2000 Multi Language)

1 - 2 PL-6920/PL-7920 Series User Manual
Overview
1 Setting Up the Touch Panel Connection
2 Using the USB Interface
The connection method used can be via either a serial (RS-232C) or USB interface. De-
pending on the type of Touch Panel connection used, the OS types that can be used will
vary.
Touch Panel Connection Compatible OS Types
USB Windows®98 Second Edition
Windows®2000
Windows®XP
Serial (RS-232C)
Windows®95
Windows®98 Second Edition
WindowsNT®4.0
Windows®2000
Windows®XP
The PLunit’s factory setting is “Serial”. When the touch panel connection method is changed
to USB, the following BIOS level System settings must also be changed.
System Data Settings
For System Data Setting details, refer to Chapter 5 - System Setup
System Setting Menu Setting Item USB Setting
USBController Enabaled
OnboardSerialPort4 Disabled
PnP/PCIConfiguration
A
ssign IRQ ForUSB Enabled
IntegratedPeripherals
Touch Panel Interface Selector Switch (T-MODE)
Set the Touch Panel I/F Selector Switch (T-MODE) to “U”. For information about the
Touch Panel Interface (I/F) Selector Switch (T-MODE), refer to 2-4 Part Names and Fea-
tures
Mouse Emulation Software(UPDD)
Wheninstalling theMouseEmulation Software,besure to selectUSB.
System Setup Menu Menu Item USB Setting
IntegratedPeripherals USBController Enabled
PnP/PCIConfiguration
A
ssign IRQ ForUSB Enabled
The PL unit's USB interface cannot be used without changing the factory settings.
When connecting peripheral devices to the USB port, change the System Settings as
shown below.
• When using a commercial-type USB hub, additional hubs cannot be
attached to the first hub. Only a single “level” USB hub can be used
when connecting USB devices.

1 - 3
PL-6920/PL-7920 Series User Manual
Overview
Exp.DIMMmemory
(64MB/128MB/256MB)
Screen Protection Sheet
Keyboard
Keyboard/Mouse
USB type Dev.
Printer
Touch Panel
Display Unit (TFT Color)
Display Module
Main Module
- 128MB Pre-installed (standard)
- Expansion slots
- PL-6920/PL-7920:
4 ISAand 2 PCIslots
(Using 2 PCI slots reduces ISA slots to 2)
- PL-6921/PL-7921:
2 ISAand 1 PCIslot
(Using 1 PCI slot reduces ISA slots to 1)
ResetButton
Pow er Unit
AC IN (85V to 265V)
HDD/CFCard
Expansion Slot
Optional Items
Commercial Items
(Purchased byUser)
PL Unit
3 Ports
(Built-in)
LPT
(Built-in)
Cable Connection
Attached to Main Unit
CD-ROMDrive/
Mirror Disk Unit
Minus Power
SupplyUnit
(Built in)
Side-mount
FDD Unit*1
Peripheral Dev.
(Built-in)
Peripheral Dev.
LAN Network
USB
1port
PS/2
1port
PS/2
10 BASE-T
100 BASE-TX
2 Port
USB
RS-232C
PL-6920/
PL-7920
<4-slot type>
Front Face FDD
Unit*1
IDE
HDD/CFCard
Expansion Slot
1-2 System Configuration
The following chart shows the range of peripheral items connected to the PL.
• This diagram shows only the PL’s internal layout and connect-
able devices. The user’s actual design may differ.
*1 Only one FDD unit can be used at one time, i.e. either the front panel’s FDD, or the main
unit’s FDD.
3 Using the LAN Interface
The PL unit's LAN interface cannot be used without changing the factory settings.
When using the LAN port, change the System Settings as shown below.
System Setup Menu Menu Item LAN Setting
IntegratedPeripherals OnboardLAN Enabled