Siemens Simatic PC Panel PC 870 Technical Document

Preface, Contents
Product Overview 1
Starting Up the Computing Unit 2
Connecting and Operating the
Computing Unit 3
Servicing and Expanding the
Computing Unit 4
Configuring the Computing Unit in
BIOS Setup 5
Fault Diagnosis 6
Hardware Information 7
Decentralized Design 8
Appendices A
B
Glossary, Index
Release 11/02
Panel PC 870
Computing Unit
Equipment Manual
SIMATIC PC
This manual is valid for computer units with
order numbers 6AV770x-xC..., 6AV771x-xC...,
6AV770x-xD... and 6AV771x-xD...

Chapter
!Danger
indicatesan imminently hazardous situation which, if not avoided, will result in death or serious injury.
!Warning
indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
!Caution
used with the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
Caution
used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may
result in property damage.
Notice
indicates a potential situation which, if not avoided, may result in an undesirable result or state.
Note
is an important piece of information about the product, the handling of the product or the respective part of
the documentation which should be noted in particular.
Qualified Personnel
Equipment may be commissioned and operated only by qualified personnel. Qualified personnel within
the meaning of the safety notices in this manual are persons who are authorized to commission, ground
and identify equipment, systems and circuits in accordance with safety engineering standards.
Correct Usage
Note the following:
!Warning
The equipment may be used only for the applications stipulated in the catalog and in the technical descrip-
tion and only in conjunction with other equipment and components recommended or approved by Sie-
mens.
Startup must not take place until it is established that the machine, which is to accommodate this compo-
nent, is in conformity with the guideline 98/37/EEC.
Appropriate transport, and appropriate storage, installation and assembly, as well as careful operation and
maintenance, are required to ensure that the product operates perfectly and safely.
Safety Guidelines
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:

AChapter
Index-3
Panel PC 870
Computing Unit Equipment Manual
Release 11/02
Trademarks
You will find the registered trademarks of Siemens AG in the preface. Some of the other designations used
in these documents are also registered trademarks; the owner’s rights may be violated if they are used by
third parties for their own purposes.
Impressum
Editor and Publisher: A&D PT1
We have checked the contents of this manual for agreement with the hard-
ware and software described. Since deviations cannot be precluded entirely,
we cannot guarantee full agreement. However, the data in this manual are
reviewed regularly and any necessary corrections included in subsequent
editions. Suggestions for improvement are welcomed.
Disclaimer of LiabilityCopyright Siemens AG 2002 All rights reserved
The reproduction, transmission or use of this document or its contents is not
permitted without express written authority. Offenders will be liable for
damages. All rights, including rights created by patent grant or registration of
a utility model or design, are reserved.
Siemens AG
Automation & Drives
SIMATIC Human Machine Interface
A&D PT1
Postfach 4848, D-90327 Nürnberg
ESiemensAG 2002
Technical data subject to change.
Siemens Aktiengesellschaft Release 11/02

Chapter
For your notes

v
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Preface
Purpose
The SIMATIC Panel PC 870 Computer Unit Equipment Manual is part of the
SIMATIC HMI documentation.
It provides operators, mechanics, planning engineers and maintenance personnel
with information on the computer unit and its installation, functionality, operation
and technical design.
Documentation.
SSIMATIC Panel PC 670, Computer Unit Equipment Manual
SIMATIC Panel PC 870, Computer Unit Equipment Manual (this document)
The equipment manual contains information on extension options for the
computer unit, on the configuration, error diagnostics and the hardware.
SSIMATIC Panel PC 670/870 Operating Unit Equipment Manual
The equipment manual contains information on operating the operating unit,
error diagnostics and the hardware.
SSIMATIC Panel PC 670/870, Installation Guide
This Installation Guide contains the information on the mechanical and electrical
installation of the Panel PC 670/870 and starting it up.
All the equipment manuals mentioned are supplied with the Panel PC 670/870
electronically in PDF format on the Documentation & Drivers CD and are available
in German, English, French, Italian and Spanish.
Target groups include installation engineers as well as service and maintenance
technicians.

Preface Release 11/02
vi SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Notation
The following conventions are used in this manual:
Motor on Text that is displayed on the operating unit is printed in
Courier type face.
Variable Symbolic names that stand for variable quantities that
appear on the screen are printed in Courier italic type face.
Screens Selectable functions are printed in italic type face.
ESC Names of keys and buttons are shown in a different type
face.
History
Release Comments
07/01 Initial release of the SIMATIC Panel PC 870 Computer Unit
equipment manual.
12/01 Addition of the “Decentralized Design“option
to the SIMATIC Panel PC 870 Computer Unit Equipment Manual
11/02 Technical update to the SIMATIC Panel PC 870 Computer Unit
equipment manual
Trademarks
The following designations are registered trademarks of Siemens AG:
SSIMATICR
SSIMATIC HMIR
SSIMATIC Multi PanelR
SSIMATIC Multifunctional PlatformR
SSIMATIC Panel PCR
SHMIR
SProToolR
SProTool/LiteR
SProTool/ProR
SMP 270R
SProAgentR

Preface
Release 11/02
vii
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Automation and Drives, Service & Support
Available worldwide:
SIMATIC Hotline
Johnson City
Nuremberg
Singapore
Worldwide (Nuremberg)
Technical Support
(FreeContact)
Local time: Mon.-Fri. 8:00 to 17:00
Telephone: [phone]
Fax: [phone]
E-Mail: techsupport@
ad.siemens.de
GMT: +1:00
Worldwide (Nuremberg)
Technical Support
(fee-based, only with SIMATIC
Card)
Local time: Mon.-Fri. 0:00 to 24:00
Telephone: [phone]
Fax: [phone]
GMT: +01:00
Europe / Africa (Nuremberg)
Authorization
Local time: Mon.-Fri. 8:00 to 17:00
Telephone: [phone]
Fax: [phone]
E-Mail: authorization@
nbgm.siemens.de
GMT: +1:00
America (Johnson City)
Technical Support and
Authorization
Local time: Mon.-Fri. 8:00 to 19:00
Telephone: [phone]
Fax: [phone]
E-Mail: simatic.hotline@
sea.siemens.com
GMT: –5:00
Asia / Australia (Singapore)
Technical Support and
Authorization
Local time: Mon.-Fri. 8:30 to 17:30
Telephone: [phone]
Fax: [phone]
E-Mail: simatic.hotline@
sae.siemens.com.sg
GMT: +8:00
The languages spoken by the SIMATIC Hotlines are generally German and
English, the Authorization Hotline is also provided in French, Italian and Spanish.

Preface Release 11/02
viii SIMATIC Panel PC 870 Computing Unit, Equipment Manual
SIMATIC Customer Support Online Services
The SIMATIC Customer Support team offers you substantial additional information
about SIMATIC products via its online services:
SGeneral current information can be obtained
–in the Internet unter
http://www.siemens.com/simatic
SCurrent Product Information leaflets, FAQs (Frequently Asked Questions),
Downloads, Tips and Tricks can be obtained
–in the Internet under
http://www.siemens.com/automation/service&support
Training Center
Siemens offers a number of training courses to familiarize you with the SIMATIC
S7 automation system. Please contact your regional training center or our central
training center in D 90327 Nuremberg, Germany for details.
Telephone: [phone]
Internet: http://www.sitrain.com
E-Mail: [email protected]
Other Sources of Assistance
In case of technical queries, please contact the Siemens representatives in the
subsidiaries and branches responsible for your area.
The addresses can be found:
Sin the Siemens Catalogue ST 80
Sin the Internet under
http://www.siemens.com/automation/partner
Sin the Interactive Catalogue CA01
http://www.siemens.com/automation/ca01

ix
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Contents
1 Product Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Advantages of the Computer Unit 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Safety Notes 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Certificates, Guidelines and Declarations 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Certification for USA, Canada and Australia 1-11. . . . . . . . . . . . . . . . . . . . . . . . .
2 Starting Up the Computing Unit 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Unpacking and Checking the Items Delivered 2-2. . . . . . . . . . . . . . . . . . . . . . .
2.2 Ensuring Readiness for Operation 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Connecting and Operating the Computing Unit 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Ports, Interfaces and Connections 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Connecting Peripheral Units 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1 Printer connection via parallel port 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2 Printer connection via serial port 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3 Connecting USB devices 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Drives with Interchangeable Media 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.1 Floppy disk drive 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2 CD ROM or CD RW/DVD drive (according to device configuration) 3-8. . . . .
3.4 Reset Button 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Servicing and Expanding the Computing Unit 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Opening the Device 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Requirements 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Opening the computer unit 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Functional units visible after opening the device 4-4. . . . . . . . . . . . . . . . . . . . .
4.1.4 Motherboard 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Installing and Removing Drives 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 Removing and installing the hard disk 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2 Removing and installing the floppy disk drive 4-9. . . . . . . . . . . . . . . . . . . . . . . .
4.2.3 Installing and removing CD-ROM or CD-RW/DVD drive (option) 4-10. . . . . . .
4.3 Installing and Removing Expansion Boards 4-11. . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Removing and installing the module retainer plates 4-11. . . . . . . . . . . . . . . . . .
4.3.2 Installing ISA/PCI cards 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Installing and Removing the Power Supply 4-14. . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Installing and Removing the Device Fan 4-15. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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4.6 Installing and Removing the Backup Battery 4-16. . . . . . . . . . . . . . . . . . . . . . . .
4.7 Installing and Removing Further Components 4-17. . . . . . . . . . . . . . . . . . . . . . .
4.8 Installing a Memory Expansion 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Configuring the Computing Unit in BIOS Setup 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Modifying the Device Configuration with BIOS SETUP 5-2. . . . . . . . . . . . . . .
5.2 Main Menu 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Advanced Menu 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Security Menu 5-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 Power Save Menu 5-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6 Boot Sequence Menu 5-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7 Version Menu 5-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8 Exit Menu 5-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.9 BIOS Setup Default Settings 5-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Fault Diagnosis 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Problems When Using Non-Siemens Modules 6-2. . . . . . . . . . . . . . . . . . . . . . .
6.2 Operating Unit Display Remains Dark 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 System Time and/or Date of the PC Incorrect 6-3. . . . . . . . . . . . . . . . . . . . . . .
6.4 Error Message Appears on the Screen/Display 6-4. . . . . . . . . . . . . . . . . . . . . .
6.5 Computer Unit Self-test Prior to Booting 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Hardware Information 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Spare Parts and Accessories 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.1 Spare parts 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.2 Accessories 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Overview of Components and Interfaces 7-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 System Resources 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4 Monitoring Functions 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.1 Overview 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.2 Temperature monitoring and display 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.3 Fan control 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.4 Watchdog (WD) 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 Interfaces 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5.1 External ports 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5.2 Assignment of the front ports on the motherboard 7-14. . . . . . . . . . . . . . . . . . . .
7.5.3 Assignment of the internal ports on the motherboard 7-17. . . . . . . . . . . . . . . . .
7.6 Bus Board 7-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6.1 Design and theory of operation 7-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6.2 Interface to the motherboard 7-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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7.7 AC Power Supply 7-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.8 DC Power Supply 7-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.9 Power Requirements of the Components (Maximum Value) 7-35. . . . . . . . . . .
8 Decentralized Design 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Description 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1.1 Overview 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1.2 Dimensions 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1.3 Mounting 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Cable Connections 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Spare Parts 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Technical Data 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Technical Data A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B ESD Guidelines B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.1 What Does ESD Mean? B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.2 Electrostatic Charge of People B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.3 Additional safety measures against discharges of static electricity B-3. . . . . .
Glossary Glossary-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1-1
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Product Overview
Chapter Overview
In Section You Will Find On Page
1.1 Advantages of the computer unit 1-2
1.2 Safety notes 1-5
1.3 Certificates, guidelines and declarations 1-9
1.4 Certification for USA, Canada and Australia 1-11
1

Product Overview Release 11/02
1-2 SIMATIC Panel PC 870 Computing Unit, Equipment Manual
1.1 Advantagesof the Computer Unit
Computer unit
The computer unit is the basic component both for the PC-based HMI devices
(Panel PC) and (in special configurations) and for custom-configured devices.
The computer unit is intended for use in industry as well as in the residential,
business and commercial areas and can also be used in building system
automation or in public facilities, in addition to industrial applications.
The computer unit is an especially high-performance industrial PC designed in
Celeron/Pentium III technology.
Features
The computer unit is characterized by:
Sextensive climatic, vibration and shock tests to ensure industrial compatibility;
Selectromagnetic compatibility conforming to CE and FCC;
SUL/CSA approvals;
Suser support by hotline, service, spare parts;
Squality assurance conforming to ISO 9001;
Scompliance with the requirements for a fire enclosure to EN60950/UL1950 –in
other words, it may be used without an additional fire enclosure;
Sflexible expansion capability
Ssuitability for use in a wide ambient temperature range;
Sa design that is easy to service and maintain.
Software equipment
The computer unit is equipped with software which allows it to be used universally.
It includes a standard Windows operating system.
The computer unit additionally allows the use of:
SSIMATIC supplementary software
Ssoftware from the entire world of automation
Ssoftware from the PC world

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SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Additional applications:
The computer unit can also be used in other areas of automation engineering
(SIMATIC HMI; TELEPERM; SINUMERIK; SIROTEC, etc.).
Installation
The computer unit can be installed in various installation locations (refer to
Chapter 2.2).
There are anchorage points on both of the longs sides for securing the computer
unit. Mounting brackets are screwed onto these anchorage points.
Decentralized design
A decentralized design is possible as an alternative to a centralized configuration.
The advantages are that
–The operating unit can be installed closer to the machine and inclined at an
angle of up to 70 °for example, in a swivel arm (”boom”) or console,
–The more sensitive computer unit (hard disk) can be installed vertically some
distance away from the machine where vibration is low –for example, in a
cabinet.
With this configuration, additional components are included for communication
between the operating unit and computer unit:
–the host module, which is mounted on the computer unit,
–the remote module, which is mounted on the operating unit and
–the cable, which links them.
This equipment manual is organized as follows.
SChapters 2 to 7 basically describe the specific characteristics of the
computer unit in a centralized design, making reference, where necessary,
to the complete unit, e.g. with regard to the dimensions for mounting,
maintenance and technical specifications.
SChapter 8 describes the decentralized design of the Panel PC.

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Advantages of the computer unit
SThe computer unit is rugged in design and its functions make it particularly
suitable for use on site under harsh industrial conditions. It meets the specific
requirements of an industrial environment, such as noise immunity, compliance
with standards, ruggedness and continuous operation.
SOwing to the variable operating location and the many options for installation,
the computer unit can be used virtually anywhere.
SThe computer unit includes all ports and interfaces required for automation with
SIMATIC. These particularly relate to:
–Parallel port (LPT 1)
–Serial ports (1x V.24, 1x V.24/TTY)
–PS/2 keyboard port (supports PG720/740 keyboard with trackball)
–PS/2 mouse port
–USB port (2x external)
–MPI/Profibus DP (max. 12 MBaud)
–Ethernet interface (10/100 MBaud, RJ45)
–VGA interface for external monitor
–Simple expansion possible via plug-in PCI and ISA slot modules
SFurther features
–AC 240/120 V power supply without mains switch, optional DC 24 V
–Reset button (at side of unit), protected against inadvertent actuation
–Start-up Guide in electronic form, in 5 languages

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1.2 Safety Notes
!Caution
Please observe the safety notes on the back of the cover of this manual. The
SIMATIC Panel PC 870 should only be expanded after having read the information
in Chapter 4 and the relevant safety notes.
This device complies with the applicable safety requirements in accordance with
IEC, VDE, EN, UL and CSA. If you have doubts about the approval of the
installation in the intended location, please contact the service representative
responsible for your area.
Notes on installation
If the device is brought to its operating location from a cold environment,
condensation may occur. Before starting up, the device must be dry and, therefore,
an acclimatization period of at least 12 hours is necessary.
Before installing and operating the device, please note the information on ambient
conditions in the Appendix A “Technical Data”and on installing the device in
Chapter 2. The device must be installed in such a way that it presents no danger of
any kind (for example, by tipping over).
Ensure that the air vents are not obstructed and sufficient cooling air can be drawn
in inside the device.
!Warning
When assembling the systems, it is essential to maintain the permissible
installation positions and angles (refer to Chapter 2).
If systems are installed at a non-approved installation location, the approvals to
UL 1950 , UL 508 and EN60950 are no longer valid!

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Mains supply
Lay the cables so that no one can step on or trip over them. When connecting the
device, carefully study the pertinent information given in Chapter 2.
Never connect or disconnect power cables or data transmission lines during a
thunderstorm.
In an emergency situation (for instance, damage to the housing, controls or power
cable, penetration by liquids or foreign bodies), pull the power plug and contact the
authorized service department.
The SIMATIC Panel PC 870 must be switched off before connecting/disconnecting
periphery units (keyboard, mouse, printer, etc.). Failure to do so can result in
damage to the PC.
Notes for devices with AC power supply
The device is intended for connection to grounded power supply systems
(TN networks to VDE 0100, Part 300, or IEC 364-3).
No provision is made for connection to non-grounded or impedance-grounded
power supply systems (IT networks).
The power cable should comply with the safety guidelines of the country
concerned.
Check to make sure that the rated voltage for the device coincides with that of the
local mains voltage.
This device is equipped with a safety-tested power supply cable and may be
connected only to a socket outlet with grounding contact.
Make sure that the socket outlet on the device or the socket outlet with grounding
contact of the building wiring system is freely accessible and located as near to the
device as possible.
To completely disconnect the PC from the mains power supply, you must pull the
plug. This connection must be easily accessible. If the PC is to be installed in a
cabinet, a central disconnector must be provided.
Note for devices with DC power supply
The mains power adapter area of the device does not fulfill the requirements of
fireproof housing complying to EN60950; therefore, the assembly configuration in
this area must fulfill the requirements of a fireproof housing.
!Warning
The unit may only be connected to a 24 VDC mains power outlet which complies
to the requirements of SELV (Safety Extra-Low Voltage); a grounding conductor
must also be connected.
The cable cross-section must be adapted to the short circuit current of the 24 VDC
power source so that no damage is caused by the cable in the event of a short
circuit. Cable with a cross-section of up to 5 mm2can be connected.

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Country-specific notes
For the USA and Canada:
For operation in Canada and the United States, use CSA or UL-listed power
cables.
The connector must comply with the NEMA 5-15 specification.
120 V power supply
A flexible cable with UL approval and CSA marking and the following features must
be used: SJT design with three conductors, at least 18 AWG cross-section, a
maximum length of 4.5 meters and parallel grounding-type plug (15 A, at least
125 V).
240 V power supply
A flexible cable with UL approval and CSA marking and the following features must
be used: SJT design with three conductors, at least 18 AWG cross-section, a
maximum length of 4.5 meters and Tandem grounding-type plug (15 A, at least
250 V).
230 V supply voltage outside the USA and Canada
A flexible cable with the following features must be used: conductor cross section
at least 18 to AWG and grounding-type plug 15 A / 250 V. Make sure that the cable
set complies with the safety standards of the country where the devices will be
installed and that they bear the relevant markings.
Repairs
Repairs to the SIMATIC Panel PC 870 may only be carried out by authorized,
adequately trained personnel.
!Warning
Unauthorized opening and repairs to devices can lead to severe property damage
or represent a danger to the user.
Always unplug the power plug before opening the unit.
Only install system extensions which are intended for the computer. The
installation of other expansions can damage the system or violate safety and radio
interference regulations. Information concerning which extensions are suitable for
the system can be obtained from technical service representatives or the sales
outlet.
The terms of the warranty are deemed void in the case of defects caused to the
SIMATIC Panel PC 870 by the installation or replacement of system extensions.
The power supply may only be removed or replaced by authorized, adequately
trained personnel.

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Batteries
This unit contains a battery located underneath the unit fan. The batteries may only
be replaced by authorized, adequately trained personnel.
When disposing of the batteries, observe the locally applicable laws on disposal of
pollutants.
!Caution
Improper replacement of the battery poses danger of explosion. Only replace with
batteries of the same type or those of a similar type recommended by the
manufacturer. Dispose of used batteries according to the applicable laws or
manufactuer’s information.
ESD guidelines
Components containing ESD (Electrostatically Sensitive Devices) may be identified
by the following label:
When handling components containing ESD, it is essential to observe the following
guidelines:
SBefore working with components containing ESD, you must discharge any
static electricity from your body (e.g. by touching a grounded object).
SAny devices and tools used must also be free of static electricity.
SPull the power plug before connecting or disconnecting components containing
ESD.
SOnly touch the components containing ESD at the edges.
SDo not touch any contact pins or strip conductors on components containing
ESD.