Siemens SIMATIC PG 720 P User manual

Preface, Contents
Product Overview 1
Unpacking and Setting Up
the PG 720 2
Getting to Know the PG 720 3
Installing and Operating the
PG 720 4
PG 720 Expansions 5
Configuring the PG 720 6
Error Diagnostics 7
Hardware Information 8
Appendices
ESD Guidelines A
Glossary, Index
C79000-G7076-C721
Edition 02
PG 720 P
Programming Device
Manual
SIMATIC

ii
This manual contains notices which you should observe to ensure your own personal safety, as well as to
protect the product and connected equipment. These notices are highlighted in the manual by a warning
triangle and are marked as follows according to the level of danger:
!Danger
indicatesthatdeath,severepersonalinjury,orsubstantialpropertydamagewillresultifproperprecautionsare
not taken.
!Warning
indicatesthatdeath,severepersonalinjury,orsubstantialpropertydamagecan result ifproper precautions
are not taken.
!Caution
indicates that minor personal injury or property damage can result if proper precautions are not taken.
Note
drawsyourattentiontoparticularlyimportantinformationontheproduct,handlingtheproduct,ortoaparticular
part of the documentation.
Only qualified personnel should be allowed to install and work on this equipment. Qualified persons in the
sense of the safety guidelines of this Manual are defined as persons who are authorized to commission, to
ground and to tag equipment, systems and circuits in accordance with established safety practices and
standards.
Note the following:
!Warning
Thisdeviceanditscomponentsmayonlybeusedfortheapplicationsdescribedinthecatalogorthetechnical
description, and onlyin connection withdevices orcomponents from othermanufacturers whichhave been
approved or recommended by Siemens.
Thisproductcanonlyfunctioncorrectlyandsafelyifitistransported,stored,setup,andinstalledcorrectly,and
operated and maintained as recommended.
SIMATIC, SIMATIC HMIand SIMATIC NETare registered trademarks of SIEMENS AG.
Thirdparties usingfortheir ownpurposesanyothernames inthisdocumentwhichrefer totrademarksmight
infringe upon the rights of the trademark owners.
We have checked the contents of this manual for agreement with the
hardwareandsoftwaredescribed.Sincedeviationscannotbeprecluded
entirely, we cannot guarantee full agreement. However, the data in this
manualarereviewedregularlyandanynecessarycorrectionsincludedin
subsequent editions. Suggestions for improvement are welcomed.
Siemens AG 1998
Technical data subject to change.
Disclaimerof LiabilityCopyright Siemens AG 1998 All rights reserved
Thereproduction,transmission,oruseofthisdocumentoritscontentsis
notpermittedwithoutexpresswrittenauthority.Offenderswillbeliablefor
damages.Allrights,includingrightscreatedbypatentgrantorregistration
of a utility model or design, are reserved.
Siemens AG
BereichAutomatisierungs- und Antriebstechnik
GeschäftsgebietIndustrie-Automatisierungssysteme
Postfach4848,D-90327Nürnberg
Siemens Aktiengesellschaft G79000-G7076-C721
Safety Guidelines
Qualified Personnel
Correct Usage
Trademarks

iii
PG 720 P Programming Device
C79000-G7076-C721-02
Preface
This manual contains all the information you need for working with the
PG 720 programming device. You can use this information to do the
following:
Unpack the programming device and power it up.
Familiarize yourself with the functions and settings of the various
components (display, keyboard, programming facilities, etc.).
Connect the programming device to other units of equipment
(programmable logic controllers, other programming devices).
Expand your system, provided you comply with the necessary conditions.
Analyze and eliminate simple problems.
The following persons require the manual:
Users commissioning the programming device themselves or working
with it (editing, debugging).
System administrators operating the programming device in a network.
Service and maintenance personnel using the PG 720 for system
expansion purposes or error/fault analysis.
This manual describes the version of the PG 720 as available in June 1998.
The Product Information Bulletin supplied with the PG 720 contains the
latest technical specifications for your programming device.
The approvals, certificates, and licenses for your device are supplied along
with the Product Information Bulletin.
Along with your PG 720, you also receive the following documents which
you require for commissioning the device:
The Product Information Bulletin with the valid technical specifications
of the PG 720.
A Product Information leaflet about the software supplied with the
PG 720.
For more detailed information about handling the software, please refer to
the appropriate manuals (for example, the STEP 5 manual).
Purpose of the
Manual
Audience
Where is this
Manual Valid?
Licenses
Where to Find
Information

iv PG 720 P Programming Device
C79000-G7076-C721-02
Chapters 1 to 4 of the manual contain the most important instructions for
commissioning and using the PG 720. Chapters 5 to 8 are reference sections
required in special situations.
Setting up and getting to know your device
Before you start to use your programming device, you should read about
setting up the device in Chapter 2 and about the components and functions of
the PG 720 in Chapter 3.
Installation
Chapter 4 describes the basic steps necessary for commissioning the PG 720.
This chapter also contains instructions for working with submodules and
memory cards for programmable logic controllers and additional interfaces.
Expansion
Chapter 5 describes how to expand your PG 720 (for example, installation of
memory expansions). Please observe the safety instructions in this section.
Configuration
Modifications made to the system hardware may make it necessary for you to
adapt the original hardware configuration. This is described in Chapter 6.
Error/fault diagnostics
Chapter 7 explains how to deal with simple faults and problems that you can
diagnose and, in some cases, eliminate yourself.
Reference data
Chapter 8 contains information about hardware addresses, interrupt
assignments, and connecting cables.
ESD guidelines
The guidelines on the handling of electrostatically sensitive devices are
particularly important for service and maintenance technicians who are
installing expansion units or carrying out error analysis with the PG 720.
Glossary
The glossary defines and explains important terms.
Alphabetical index
The alphabetical index will help you to find passages in the text relating to
important terms and keywords quickly and reliably.
If you have any questions concerning subjects not covered in the manual,
simply get in touch with the Siemens representative in your area or call the
SIMATIC Hotline. The addresses are listed in your Product Information
Bulletin.
If you have any questions about the manual itself or would like to make or
suggestions, please complete the reply card at the end of the manual. We
would also appreciate it if you would include your own opinion and appraisal
of the manual on the reply card.
Structure of the
Manual
Additional
Assistance
Preface

v
PG 720 P Programming Device
C79000-G7076-C721-02
Contents
1 Product Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Unpacking and Setting Up the PG 720 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Setting Up the PG 720 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Moving the Programming Device 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Getting to Know the PG 720 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Hardware Components of the PG 720 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Display 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Keyboard 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Trackball 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Drives 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 CD-ROM Drive 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7 External Power Unit and Battery 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Installing and Operating the PG 720 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Connecting the PG 720 to the Power Supply 4-2. . . . . . . . . . . . . . . . . . . . . . . .
4.2 Battery Operation 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Connecting I/O Devices 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Working with SIMATIC S5 Memory Submodules 4-9. . . . . . . . . . . . . . . . . . . . .
4.5 Working with SIMATIC Memory Cards 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Working with PCMCIA Cards 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 Connecting the PG 720 to other SIMATIC S5 Units 4-13. . . . . . . . . . . . . . . . . . .
4.8 Connecting the PG 720 to a SIMATIC S7 Network (MPI/DP) 4-17. . . . . . . . . . .
4.9 Networking the PG 720 with Other Stations on PROFIBUS 4-19. . . . . . . . . . . .
4.10 Networking the PG 720 and Other Computers on Industrial Ethernet 4-20. . . .
5 PG 720 Expansions 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Opening the Unit 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Components Visible After Opening the Unit 5-4. . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Switch Setting / Jumper 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Installing Memory Expansion Modules 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 Replacing the Backup Battery 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6 Closing the Unit 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi PG 720 P Programming Device
C79000-G7076-C721-02
6 Configuring the PG 720 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Changing the Device Configuration with SETUP 6-2. . . . . . . . . . . . . . . . . . . . .
6.1.1 The Main Menu 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.2 The Advanced Menu 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.3 The Security Menu 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.4 The Power Savings Menu 6-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.5 The Exit Menu 6-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Configuring the PCMCIA Interface 6-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Error Diagnostics 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Hardware Information 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Hardware Address Table 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Interrupt Assignments 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 PG 720 Video Modes 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Connector Pinouts 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Connecting Cables 8-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Guidelines for Handling Electrostatically-Sensitive Devices (ESD) A-1. . . . . . . . . .
A.1 What is ESD? A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Electrostatic Charging of Persons A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.3 General Protective Measures Against Electrostatic Discharge Damage A-4.
Glossary Glossary-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents

1-1
PG 720 P Programming Device
C79000-G7076-C721-02
Product Overview
The PG 720 programming device is a self-contained unit designed specifically
for an automation environment. Its performance, ergonomic design, and
equipment make it a unit particularly suitable for maintenance and service as
well as for programming, configuring, debugging, and installing SIMATIC
programmable logic control systems.
SIEMENS
You can use the PG 720 programming device to program SIMATIC S5 and
SIMATIC S7 programmable logic controllers. It is equipped with the following:
Interface ports for connection to programmable logic controllers.
Programming facilities for S5 memory submodules and S5/S7 memory
cards.
The PG 720 is supplied with system and automation software. The software
components are listed in the Product Information leaflet.
Application
The PG’s Hardware
and Software
1

1-2 PG 720 P Programming Device
C79000-G7076-C721-02
Compared with a PC with standard hardware and software, the PG 720
programming device of the SIMATIC family has numerous advantages:
You can develop, debug, and document user programs for SIMATIC S5
and SIMATIC S7 programmable logic controllers with the PG 720
without the need for additional hardware or software.
The rugged design and practical functions of the PG 720 make it
particularly suitable for use on-site under tough industrial conditions. It is
extremely light and easy to transport. The PG 720 meets the specific
requirements of industrial environments such as noise immunity,
compliance with the relevant standards, ruggedness, simple
transportation, and commissioning.
The PG 720 is equipped with a battery allowing it to be operated without
a mains connection.
The PG 720 can be set up and operated in a large number of different
ways and positions, and can therefore be used practically anywhere it is
needed.
The PG 720 has all the integral ports necessary for connecting it to
SIMATIC automation devices:
– Programming interface for SIMATIC S5 memory submodules.
– Programming interface for SIMATIC S5 and SIMATIC S7 memory
cards in credit card format.
– Communication interfaces for connection to S5 and S7 programmable
logic controllers.
The PG 720 is supplied with all the necessary system and automation
software already installed on the hard disk in compressed form.
Since Windows 95 is also already installed, you can, of course, also use
the PG 720 as a stand-alone workstation, and run all the standard software
available on the market that requires MS-DOS or Windows.
In terms of performance and expansion capability, your programming
device meets all the normal requirements of a PC. This means that the
PG 720 can also be used as a fully-fledged personal computer.
Advantages of the
PG 720
Product Overview

2-1
PG 720 P Programming Device
C79000-G7076-C721-02
Unpacking and Setting Up the PG 720
This chapter contains important information about unpacking, setting up, and
transporting the PG 720, such as:
Opening and closing the keyboard
Changing the angle of inclination of the device
Using the extra pull-out support
How to move the unit.
Section Contents Page
2.1 Setting Up the PG 720 2-2
2.2 Moving the Programming Device 2-6
What Does This
Chapter Contain?
Chapter
Overview
2

2-2 PG 720 P Programming Device
C79000-G7076-C721-02
2.1 Setting Up the PG 720
Unpack your PG 720 as follows:
1. Remove the packing.
2. Do not throw the original packing away. Keep it in case you have to ship
or transport the unit again at some time in the future.
3. Check the packing list to make sure that no components are missing.
!Caution
Risk of damage!
Moisture inside the unit can cause serious damage.
When transporting the unit in cold weather, when it may be submitted to
extreme variations in temperature, make sure that the unit is allowed to
reach room temperature slowly before you switch it on.
If condensation has formed, this must be allowed to evaporate before you
switch on. If, for example, the unit is subjected to a temperature change from
–20°C to +20°(–4°F to +68°F) you should wait approximately 12 hours
before switching on the unit.
The PG 720 is used primarily on a desk or table top. To ensure a comfortable
working position, the PG 720 can be adapted as follows to suit the work
place:
1. Place the PG 720 on the desk or table top.
2. Open the keyboard lock by pulling up the gray handle.
3. Lower the keyboard into position.
Handle
Figure 2-1 The Programming Device before Opening
Unpacking Your
PG 720
Setting Up on a
Desk Top
Unpackin
g
and Settin
g
Up the PG 720

2-3
PG 720 P Programming Device
C79000-G7076-C721-02
With the keyboard open, you can incline the PG 720 to any angle between 0°
and 90°. To adjust the angle, proceed as follows:
1. Lower the keyboard into position.
2. Pull the support (Figure 2-4) out of the rear of the stand and, if necessary,
pull out the extra support hoop.
3. Incline the unit to an angle that will allow you to work comfortably.
PG 720
SIEMENS
Stand
Keyboard opened
Pivot
Figure 2-2 Changing the Angle of Inclination
Note
When you change the angle of inclination, make sure that the keyboard
cable is not trapped between the device and the stand.
!Caution
Risk of injury!
There is a danger of the unit tipping over if it is set up at an angle of
inclination of more than 15°without using the pull-out support. This could
lead to personal injury and also damage to the unit.
If the angle of inclination is greater than 15°, you must use the pull-out
support and, if necessary, the extra support hoop in the stand.
Changing the
Angle of
Inclination
Unpackin
g
and Settin
g
Up the PG 720

2-4 PG 720 P Programming Device
C79000-G7076-C721-02
In certain situations, it is helpful to remove the keyboard.
Press in the catches in the
middle of the hinges
Figure 2-3 Detaching the Keyboard
!Caution
Risk of tipping!
If the keyboard is detached, there is a risk of the unit tipping over. Before
removing the keyboard, make sure that you pull out the support from the
device stand (Figure 2-4) and pull out the additional hoop.
You detach the keyboard as follows:
1. Grip the keyboard hinges in the stand behind the keyboard.
2. Pull the locks in the middle of the hinge assembly towards the keyboard.
3. Pull the keyboard up and out.
4. Place the keyboard on a suitable surface, using the hinge assembly as a
stand.
You attach the keyboard again as follows:
1. Place the keyboard cable in the cable conduit in the stand.
2. Snap the keyboard hinges into the receptacles in the stand.
Note
When attaching the keyboard, make sure that the cable is lying correctly in the
cable conduit and is fixed in position.
Detaching the
Keyboard
Detaching
Refitting
Unpackin
g
and Settin
g
Up the PG 720

2-5
PG 720 P Programming Device
C79000-G7076-C721-02
When the keyboard is attached to the unit, its angle of inclination is 6°, the
height of the middle row of keys is 30 mm (about 1 inch). When it is
detached, the angle of inclination is 4.5°, and the height of the middle row of
keys is 27 mm. This is an ideal ergonomic design to allow a comfortable
working position.
If no table or desk is available, the unit can be operated on the floor. You can
adjust the casing and display through approximately 90ointo the horizontal
plane.
CD-ROM drive
Stand
Pivot
Support Extra support hoop
Figure 2-4 Horizontal Operating Position Without Keyboard
The basic unit can be attached to a wall. Four drilled holes (6 mm diameter)
are provided in the unit stand for this purpose.
267
46
ø6
Figure 2-5 Drilling Template for Wall Mounting (dimensions in millimeters)
Keyboard Angle
Horizontal
Position
Adjustment
Wall Mounting
Unpackin
g
and Settin
g
Up the PG 720

2-6 PG 720 P Programming Device
C79000-G7076-C721-02
2.2 Moving the Programming Device
The PG 720 is easy to carry. Before carrying it, however, you should take the
following measures:
1. Shut down the operating system. To prevent data loss, you must exit
Windows completely. Windows issues a message to inform you when it is
safe to switch off the device.
2. After shutting down the operating system, wait approximately 5 seconds
before you switch the device off. This allows the drive to come to a
complete stop and ensures optimal protection.
3. Unplug all the connecting cables.
4. Close the covers protecting the ports and connections on the right-hand
and left-hand side panels.
5. Bring the unit into an upright position.
6. Raise the keyboard and lock it by pressing it against the front panel of the
unit. The latches on the right and left snap in. Make sure that both catches
are properly locked.
7. If you only want to carry the unit for a short distance, use the handle.
8. If you want to move the PG 720 over larger distances, pack the unit and
all its accessories in the carrying bag supplied.
Figure 2-6 PG 720 Ready for Transport
Despite the rugged design of the PG 720, its internal components are
sensitive to severe vibration or jolts. When moving the PG 720, you must
therefore make sure that it is protected from severe mechanical forces.
Use the original packing material if you have to ship the PG 720 from one
location to another.
Preparations
Carrying the
PG 720
Unpackin
g
and Settin
g
Up the PG 720

3-1
PG 720 P Programming Device
C79000-G7076-C721-02
Getting to Know the PG 720
This chapter contains all the information you require about the most
important components of the device, such as:
LED displays
Drives
Keyboard
Programming facilities of the PG 720
External power unit and battery.
Section Contents Page
3.1 Hardware Components of the PG 720 3-2
3.2 Display 3-6
3.3 Keyboard 3-7
3.4 Trackball 3-13
3.5 Drives 3-15
3.6 CD-ROM Drive 3-17
3.7 External Power Unit and Battery 3-18
What Does This
Chapter Contain?
Chapter
Overview
3

3-2 PG 720 P Programming Device
C79000-G7076-C721-02
3.1 Hardware Components of the PG 720
You can access all of the important operator controls and displays from the
front, base, or sides of the unit. Figure 3-1 shows the front of the PG 720.
detached and snapped back on.
1On/Off switch
2Carrying handle
3LC display
4Ventilating slots
5Coverplate for memory submodules,
PCMCIA, interface ports and floppy disk
drive1)
6Stand
7Keyboard
8Interface ports
9Trackball
10 Catches for locking keyboard
11 Pivot
12 Protector strip
Hard disk access
CD-ROM drive access
Floppy disk access
Submodule programming
active
MPI port active
6Keyboard
7Coverplate for COM1/COM2 port,
MPI/DP port, mouse port, and LPT1/printer
port 1)
8Trackball
9Catches for locking keyboard
10 Pivot
11 Protector strip
12 CD-ROM drive 2)
2
3
5
6
7
1
4
8
10
11
9
13Detail
LEDs
Power LED
Green: Power connected, battery charged
Orange: Power connected, battery charging
Red: Rechargeable battery almost
discharged, device about to be
switched off
13
Detail
1On/Off switch
2Carrying handle
3LC display
4Coverplate for module ports, memory card
ports, PCMCIA ports, and floppy disk drive 1)
5Stand
12
1) The coverplates are used to protect the ports from dust,
and can be removed and replaced as required.
2) Can be accessed from the base when the device is turned
upside down.
Figure 3-1 The Front of the PG 720
Front
Getting to Know the PG 720

3-3
PG 720 P Programming Device
C79000-G7076-C721-02
All the connectors and interface ports for connecting to external devices are
located on the left side panel of the PG 720 (communications side).
LPT1port
Contrast control
VGA port
Power switch
LEDs
PS/2 mouse
COM 2 port
COM 1 port
Power supply
connector socket
MPI/DP port
Figure 3-2 Left-Hand Side Panel with Cover Plates Removed
The following table contains an overview of the various interface ports and
connectors on the left-hand side panel:
Table 3-1 Connectors on the Left-Hand Side Panel of the Unit
Ports and Connectors Function
VGA port Connection for external monitor
COM 2
Serial port
RS 232 /
Connection for serial mouse
RS-232 / mouse
Serial port Connection for serial printer
COM 1
RS-232 /MODEM /PLC
Serial port
Connection for S5 programmable logic
controller
MPI (multipoint interface) Connection for S7 programmable logic
controller
LPT 1 printer
Plll
Connection for parallel printer
p
Parallel port
pp
PS/2 mouse Connection for PS/2 mouse
External power supply unit Connection for 17 V DC from external
power supply unit
Left-Hand Side
Panel
(Communications
Side)
Connectors and
Ports
Getting to Know the PG 720

3-4 PG 720 P Programming Device
C79000-G7076-C721-02
You access the slots for programming S5 submodules, S5/S7 memory cards,
the PCMCIA port, and the disk drive from the right-hand side of the PG 720
(processing side).
S5 submodule port
Ejector for PCMCIA
cards
PCMCIA type II/III; slot 1
Ejector for PCMCIA
cards
Orientation point
PCMCIA type II; slot 2
3.5 in. disk drive
Ejector for diskettes
Access LED
Memory card port
CD-ROM drive
Figure 3-3 Right-Hand Side Panel (with Port Covers Removed)
The following table contains an overview of the ports and connectors on the
right-hand side panel:
Table 3-2 Connectors on the Right-Hand Side Panel of the Unit
Interface Port Function
PCMCIA type II port ; slot 2 Connection for PCMCIA type II cards
PCMCIA type III port; slot 1 Connection for PCMCIA type II/III cards
S5 submodule port Programming SIMATIC S5 submodules
Memory card port Programming SIMATIC memory cards
Disk drive Working with 3.5” disks
Right-Hand Side
Panel (Processing
Side)
Getting to Know the PG 720

3-5
PG 720 P Programming Device
C79000-G7076-C721-02
You can access the CD-ROM drive and the rechargeable battery from the base
of the PG 720 device.
CD-ROM-Drive
Battery
There are ventilation slits on the top and bottom panels of the unit. These
slits must not be covered or blocked in any way (for example, by placing the
device on carpets or rugs).
!Caution
Risk of overheating!
If you cover the inlet or outlet ventilation slits, you may cause damage to the
PG 720.
Do not place any objects so that they obstruct the ventilating slits in any
way.
Base Panel
Ventilation Slits
Getting to Know the PG 720

3-6 PG 720 P Programming Device
C79000-G7076-C721-02
3.2 Display
The PG 720 has a color display.
Contrast control
Figure 3-4 PG 720 Display
The display of the PG 720 is an STN color display with a diagonal of 10.4 in.
(26 cm) and a resolution of 800 x 600 pixels.
The three primary colors, red, green and blue, can each be displayed in eight
different shades. This means that, including all the secondary colors, a
maximum of 256 different colors can be displayed. The contrast can be
adjusted with a control to the left of the display.
Note
Depending on the gray tone or color shade in the display, passive STN
displays are subject to varying degrees of interference known as the Moiré
effect. This is a physical characteristic and is not a fault.
!Caution
Risk of injury!
If a display is damaged, liquid crystals may escape. Do not touch this liquid
or allow it to come into contact with your skin in any way, and do not breath
in the vapors. If you do come into contact with the liquid, wash those parts
of the skin affected immediately with alcohol, and rinse with plenty of water.
Then consult a physician immediately.
Use only a cotton cloth and a neutral cleansing agent to clean the display. Do
not use water or aggressive solvents (such as alcohol or acetone). Never
touch the display with hard, sharp objects. Avoid exerting any pressure on
the display surface.
Available Displays
Color Display of
the PG 720
Getting to Know the PG 720