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Siemens SIMATIC FM 456-2 Installation, Hardware, And Startup

Siemens SIMATIC FM 456-2 Installation, Hardware, And Startup

Application function module
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SIMATIC
FM 456-2 Application Function
Module
Installation, Hardware, and
Startup
Manual
This manual has the order number:
6ES7 456-2AA00-8BA0
05/99
Edition 01
Important Notes, Contents
User Information
Product Overview
Installation and Startup
Replacing Modules
Reference Information
FM 456-2 Functions and
Technical Data
Ordering Information
Appendices
Bibliography
Rules for Handling
Electrostatically Sensitive
Devices (ESD)
Index
1
2
3
4
5
A
B

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Summary of Contents for Siemens SIMATIC FM 456-2

  • Page 1 Important Notes, Contents SIMATIC User Information Product Overview FM 456-2 Application Function Module Installation and Startup Installation, Hardware, and Replacing Modules Startup Reference Information Manual FM 456-2 Functions and Technical Data This manual has the order number: Ordering Information 6ES7 456-2AA00-8BA0 Appendices Bibliography Rules for Handling...
  • Page 2 This device and its components may only be used for the applications described in the catalog or the technical descriptions, and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens. This product can only function correctly and safely if it is transported, stored, set up, and installed cor- rectly, and operated and maintained as recommended.
  • Page 3 Important Notes Purpose of the Manual The information in this manual will enable you to: Design a configuration from the M7-400 range and build it into an S7/M7-400 programmable logic control system. Look up operating instructions, functional descriptions and technical data for specific modules.
  • Page 4 Important Notes What is New in the FM 456-2? In comparison to the FM 456-4, the preceding product, the FM 456, shows the following alterations: Feature FM 456-4 (old) FM 456-2 (new) Processor 80486DX, 75 MHz Pentium, 120 MHz SRAM, buffered 64 Kbytes 256 Kbytes Reading and...
  • Page 5 Important Notes Area of Use The following areas of use apply to the S7-400/M7-400 systems in accordance with this CE mark: Area of use Requirements for Interference emission Interference resistance Industry EN 50081-2: 1993 EN 50082-2: 1995 Observe the Installation Guidelines The installation guidelines and safety notes given in the manual S7-400, M7-400 Programmable Controllers must be observed when commissioning and operating the S7-400/M7-400 systems.
  • Page 6 +49 (911) 895-7002 Fax: +1 423 461-2231 Fax: +65 740-7001 E-mail: simatic.support@ E-mail: simatic.hotline@ E-mail: simatic@ nbgm.siemens.de sea.siemens.com singnet.com.sg –5.00 +8:00 +01.00 SIMATIC Premium Hotline (subject to charge, with SIMATIC Card only) Time: Mon. through Fri. 0.00 a.m. to 12.00 p.m.
  • Page 7 Current product information leaflets and downloads which you may find useful for your product: – On the Internet at http://www.ad.siemens.de/support/html_00/ To access the mailbox, use a modem with up to V.34 (28.8 kbps) capability whose parameters you should set as follows: 8, N, 1, ANSI, or dial in using ISDN (x.75, 64 kbps).
  • Page 8 Important Notes FM 456-2 Application Function Module Installation, Hardware, and Startup viii C79000-G7076-C458-01...

  • Page 9: Table Of Contents

    Contents Product Overview ............Overview .
  • Page 10 Contents FM 456-2 Functions and Technical Data ........Performance Features .

  • Page 11: Product Overview

    Product Overview In this Chapter Section Subject Page Overview Applications Inserting the FM 456-2 in the S7-400 Racks Module Overview FM 456-2 Application Function Module Installation, Hardware, and Startup C79000-G7076-C458-01...

  • Page 12: Overview

    Product Overview Overview Introduction In this section, you will learn what the FM 456-2 application function module is and what it has to offer. What Is an FM 456-2? The FM 456-2 is an application function module from the M7-400 family of automation computers that is used in the S7/M7-400 programmable logic controller.
  • Page 13 Product Overview Configuration of an S7-400 with FM 456-2 An FM 456-2 with or without expansion modules can be installed in addition to the S7-400 components. Figures 1-1 and 1-2 illustrate sample configurations: FM 456-2 fitted with IF 962-COM and IF 961-CT1 interface submodules, without expansion modules as application function module in the S7-400 system FM 456-2 fitted with IF 962-COM and IF 962-VGA interface submodules, an...
  • Page 14 Product Overview M7-400 Components An M7-400 can be equipped or expanded in various ways. The following tables provide an overview of the components in the M7-400 family of automation computers. Table 1-1 Components in the M7-400 Automation Computer Family Components Function Illustration Application function module...

  • Page 15: Applications

    Product Overview Applications Tasks of an FM 456-2 An FM 456-2 is used as a programmable module in an S7-400 programmable logic controller in conjunction with an S7/M7-400 CPU. The following are a few typical tasks or functions for an FM 456-2: Technological functions (controlling, positioning, counting) Process data acquisition Mass storage functions...

  • Page 16: Inserting The Fm 456-2 In The S7-400 Racks

    Product Overview Inserting the FM 456-2 in the S7-400 Racks Inserting in S7-400 Racks The FM 456-2 application function module can be inserted in different racks of the S7/M7-400 system. Table 4-4 shows which modules can be inserted in the different racks. Table 1-2 Insertion Options for M7-400 Modules Modules...

  • Page 17: Module Overview

    Product Overview Module Overview Overview of Types of Application Function Modules Table 1-3 Overview of M7-400 Application Function Modules Description Remarks FM 456-2 application function module Pentium, 120 MHz, 16 MByte DRAM main me- mory installed, 256 Kbyte SRAM with buffer, with option of connecting expansion modules Overview of Memory Cards Table 1-4...
  • Page 18 Product Overview M7-400 Interface Submodules Table 1-6 Overview of M7-400 Interface Submodules Description Remarks IF 961-AIO Analog input/output IF 961-CT1 Counter connection IF 961-DIO Digital input/output IF 962-COM 2 serial interfaces IF 962-LPT Printer interface IF 962-VGA Connection for VGA monitor and keyboard IF 964-DP SINEC L2-DP interface (Profibus) CP 1401...

  • Page 19: Installation And Startup

    Installation and Startup This section provides you with some brief information about the necessary steps to start up an FM 456-2. The startup activities can be divided into several steps, which should be carried out in the order shown: 1. Installing and switching on the hardware 2.

  • Page 20: Installation Checklist And Switch-On Test

    Installation and Startup Installation Checklist and Switch-on Test Installation Checklist and Switch-On Test This section explains the procedure for installing and starting up the M7-400 components step by step. Please proceed as described below: 1. Check that the power supply to the rack is correctly dimensioned. (Chapter 2 and /1/) 2.

  • Page 21: Module Accessories

    Installation and Startup Module Accessories The module packaging contains the basic accessories you need to install the modules in the rack. There are optional accessories for some modules. Accessories The accessories for the modules are listed and briefly explained in Table 2-1. Table 2-1 Accessories for the Modules Module...

  • Page 22: Installing Interface Submodules

    Installation and Startup Installing Interface Submodules The EXM 478 expansion module has three card slots to accept interface submodules. The FM 456-2 application function module has two card slots. Warning The modules can become damaged. If the interface module is inserted or removed with the power on, the FM 456-2, the expansion module or the interface submodule may be damaged.
  • Page 23 Installation and Startup Guides Frame of card slot with mounting hole EXM 478 Figure 2-1 Inserting an Interface Submodule in an Expansion Module Covers for the Unused Card Slots When the application function modules and expansion modules are delivered, only the upper card slot is open.

  • Page 24: Installing A Short At Card

    Installation and Startup Installing a Short AT Card The ATM 478 AT adapter module can accept a short AT card. An AT module can only be installed if the ATM 478 AT adapter module is not mounted. Only short AT cards with a slot in the mounting bracket can be installed (see also the chapter on M7-400 expansion in the reference manual ).
  • Page 25 Installation and Startup Figure 2-2 Installing an AT card in an ATM 478 AT adapter module FM 456-2 Application Function Module Installation, Hardware, and Startup C79000-G7076-C458-01...

  • Page 26: Fitting Expansion Modules To An Fm 456-2

    Installation and Startup Fitting Expansion Modules to an FM 456-2 Before installing your M7-400 in the module rack, you must pre-assemble the FM 456-2 application function module with all necessary expansion modules. This section provides information that you will need to pre-assemble expansion modules, such as an EXM 478 expansion module, an ATM 478 AT adapter module and an MSM 478 mass storage module, to an application function module to form a module assembly.
  • Page 27 Installation and Startup Removing the Connector and the Socket Covers Situated on the right-hand side of the application function module is a 120-pin socket for connecting expansion modules to the ISA bus. This socket is protected by a screw-mounted metal cover (see Figure 2-3). The EXM 478, ATM 478 and NSM 478 expansion modules contain The matching connector on the left side, An expansion socket on the right side so that other expansion modules can be...
  • Page 28 Installation and Startup Removing the Connecting Clips Connecting clips are fitted at the top and bottom of expansion modules. Pull these off upward and downward respectively. Figure 2-4 EXM 478 Expansion Module Fitted with Connecting Clips FM 456-2 Application Function Module Installation, Hardware, and Startup 2-10 C79000-G7076-C458-01...
  • Page 29 Installation and Startup Removing the Cover On the modules with a cover (for example FM 456-2, EXM 478 and MSM 478), remove the cover before interconnecting the modules or fitting a module in the rack. Proceed as follows: 1. Press the locking lever down (1). 2.
  • Page 30 Installation and Startup Interconnecting the Modules Take the application function module and first expansion module, position them on a level surface (see Figure 2-6) and press them carefully together so that all pins of the expansion module plug are precisely inserted into the socket on the FM 456-2.
  • Page 31 Installation and Startup Clipping the Modules Together After interconnection, the modules are clipped together with the two connecting clips provided (see Figure 2-7) to prevent twisting or loosening. This is carried out as follows: 1. Push the connecting clip from the top between the two modules to be clipped together as shown in Figure 2-8 so that the bent end pieces of the clip touch the module housing cover.

  • Page 32: Installing A Module Assembly In The Module Rack

    Installation and Startup Installing a Module Assembly in the Module Rack Installation Sequence To install a module or module assembly in a module rack, proceed in the following sequence: 1. Disconnect the power supply module from the mains supply. 2. Remove the blanking covers from the slots into which you wish to plug modules (module assemblies).
  • Page 33 Installation and Startup Figure 2-9 Fitting an FM 456-2 Application Function Module onto the Rack and Swinging it into Place Figure 2-10 Fitting a Module Assembly Consisting of FM 456-2 and Expansion Modules onto the Rack and Swinging it into Place FM 456-2 Application Function Module Installation, Hardware, and Startup 2-15 C79000-G7076-C458-01...
  • Page 34 Installation and Startup Screwing the Modules On Figure 2-11 shows how to screw the modules on. Tightening torque 0.8 to 1.1 Nm Figure 2-11 Screwing the Modules On FM 456-2 Application Function Module Installation, Hardware, and Startup 2-16 C79000-G7076-C458-01...
  • Page 35 Installation and Startup Inserting the Key in the Mode Switch Figure 2-12 shows how to insert the key in the FM 456-2 with the switch set to STOP. You can remove the key in the STOP or RUN settings. Figure 2-12 Inserting the Key in the Application Function Module FM 456-2 Application Function Module Installation, Hardware, and Startup 2-17 C79000-G7076-C458-01...

  • Page 36: Inserting/Removing A Memory Card

    Installation and Startup Inserting/Removing a Memory Card Purpose of the Memory Card By using a memory card, you can Store the operating system, user programs and data (similar to using a diskette); Transport the programs and data stored on the memory card; Retain the programs and data, even during Power Off.

  • Page 37: Connecting A Module Assembly

    Installation and Startup Connecting a Module Assembly The individual modules and interface submodules of a module assembly can be connected via commercially available cables and connectors. Requirements The connector housings and cables must meet the following requirements: Connector housing: The height and width of the connector housing must not exceed 43 mm and 19 mm respectively.

  • Page 38: Preparing For Operation

    Installation and Startup Preparing for Operation Listed briefly in this section is information on the steps required for preparing an FM 456-2 for operation: You will learn The sequence in which preparations must be made by means of a checklist How to connect operator panels and peripherals How to connect a programming device via the COM interface How to check the status and error display by switching on for the first time.

  • Page 39: Connecting The Operator Panels And Peripherals

    For reasons of noise immunity of the entire system, we recommend that you use the standard connecting cables available from Siemens for connecting the peripherals. Connecting a VGA Monitor...
  • Page 40 A printer with a serial interface should be connected with the appropriate cable (see ordering information) to the COM interface submodule. We recommend the use of Siemens printers. Note Only a connection cable with screen grounded at both ends may be used to connect between an M7-400 component and a printer.

  • Page 41: Connecting A Programming Device Or Pc To The Com Interface

    Installation and Startup Connecting a Mouse Connect the mouse to the IF 962-COM interface module. A PS2 mouse must not be connected separately. If a PG keyboard is connected, the trackball occupies the PS2-mouse interface. Maximum Cable Lengths Given in the table are the maximum cable lengths for connecting the individual devices.
  • Page 42 Installation and Startup Connection with Control Cables When the interface control cables are used for data traffic via the COM interface, you need a null modem cable. This may be necessary when, for example, you enter a console divert in the autoexec.bat of your FM 456-2.
  • Page 43 Installation and Startup Table 2-4 “Null-modem” Connector Cable for Connecting FM 456-2 via IF 962-COM to the COM Port of a PG/PC using a 25-Pin Sub-D Socket Signal Connection Signal E1 / GND Connected to E1 / GND M5 / DCD D2 / RxD Connected to D1 / TxD...

  • Page 44: Switching On The Fm 456-2 For The First Time

    Otherwise the module boots up. In the event of a fault, the INTF indicator lights up. If this does not happen with your module, please consult your Siemens contact at a maintenance and repair center or the SIMATIC Hotline.

  • Page 45: Replacing Modules

    Replacing Modules This chapter tells you how to replace interface submodules, application function modules or expansion modules and short AT modules. All other important information for replacing modules applies to both S7-400 and M7-400 modules and is described in manual /1/ . Warning The modules can be damaged.

  • Page 46: Replacing The Interface Submodule

    Replacing Modules Replacing the Interface Submodule Removing the Interface Submodule You can replace the interface submodule with another without removing the associated application function module or expansion module. To do this, proceed as described below: 1. Switch the central module and all function modules in your S7/M7-400 system to STOP with the key switch.
  • Page 47 Replacing Modules Warning The interface submodules and the connected equipment can be damaged. When you replace several interface modules simultaneously and you mix up the front plugs, the interface modules can be damaged. Label the front plugs so that the associated interface submodule can be clearly identified.

  • Page 48: Replacing An Application Function Module Or Expansion Module In A Module Assembly

    Replacing Modules Replacing an Application Function Module or Expansion Module in a Module Assembly Removing the Module Proceed as follows to remove a module from a module assembly: 1. Switch the central module and all function modules in your S7/M7-400 system to STOP with the key switch.
  • Page 49 Replacing Modules 6. Undo the fixing screws on the module or module group. Figure 3-3 shows the position of the fixing screws on a module. Tightening Torque 0.8 to 1.1 Nm Figure 3-3 Unscrewing the Modules 7. Swing out the module group and remove it upwards (Figures 3-4 and 3-5). FM 456-2 Application Function Module Installation, Hardware, and Startup C79000-G7076-C458-01...
  • Page 50 Replacing Modules Figure 3-4 Swinging the Module Group Out and Removing Upwards Figure 3-5 Swinging the Module Group with FM Module and Expansion Modules Out and Removing Upwards FM 456-2 Application Function Module Installation, Hardware, and Startup C79000-G7076-C458-01...
  • Page 51 Replacing Modules 8. Place the module group on a flat surface (Figure 3-6). Flat surface Figure 3-6 Module Group with Application Function Module and Expansion Modules 9. Remove the left and right connecting clips from the top and bottom of the module assembly (Figure 3-7).
  • Page 52 Replacing Modules 10.Pull the adjoining modules carefully away from the module to be replaced. When doing so, hold the modules to be separated above the bus connectors and pull them apart at the module sides, so that the ISA bus-connection is disconnected (Figure 3-8).

  • Page 53: Replacing The Short At Module

    Replacing Modules Behavior of the M7-400 After Changing a Module If no fault is present, the central module goes into the RUN mode following replacement of a module. If the central module remains in the STOP mode, you can display the cause of the fault with STEP 7 (see STEP 7 user manual). Note If data media such as Memory Card or hard disk have been renewed when replacing a module, it may be necessary to carry out the BIOS setup again,...
  • Page 54 Replacing Modules Installing the AT Module Install the new AT module in the AT adapter module in the reverse order (see Section 2.4 “Installing a Short AT Card”). Then reinstall the AT adapter module in the module assembly and refit this to the rack (see Sections 2.5 “Fitting Expansion Modules to an FM 456-2”...

  • Page 55: Fm 456-2 Functions And Technical Data

    FM 456-2 Functions and Technical Data In this Chapter Section Subject Page Performance Features Overview of Hardware Elements Mode Selector Status and Fault Indicators Memory Card Expansion Socket Slots for Interface Modules Watchdog 4-11 Buffering 4-11 4.10 BIOS Setup 4-12 4.11 Address and Interrupt Assignments 4-13...

  • Page 56: Performance Features

    FM 456-2 Functions and Technical Data Performance Features Table 4-1 gives you an overview of the most important performance features of the FM 456-2 application function module. Table 4-1 Performance Features of the FM 456-2 application function module Performance Features FM 456-2 Processor Pentium 120 MHz...
  • Page 57 FM 456-2 Functions and Technical Data General View Figure 4-1 shows the front and rear view of the FM 456-2 without covering flap. The positions of the indicators, operator controls and other elements required for operation can be seen from this figure. Front elevation Rear elevation 1 = Slot for memory card...

  • Page 58: Mode Selector

    FM 456-2 Functions and Technical Data Mode Selector Mode Selector The mode selector on the FM 456-2 is in the form of a key switch. The following illustration shows the location and positions of the mode selector. RUN-P STOP MRES Figure 4-2 FM 456-2 Mode Selector The settings of the mode selector can be examined by the software.
  • Page 59 FM 456-2 Functions and Technical Data Table 4-3 FM 456-2 Mode Selector Positions Mode Selector Explanation Position STOP The user program on the FM 456-2 cannot access the I/O modules. The user program cannot control the process. The key can be removed in this position to prevent unauthorized change of mode.

  • Page 60: Status And Fault Indicators

    FM 456-2 Functions and Technical Data Status and Fault Indicators Status and Fault Indicators The FM 456-2 is provided with the following status and fault indicators: INTF EXTF USR1 USR2 STOP Figure 4-3 Status and Fault Indicators on the FM 456-2 Meaning of Status and Fault Indicators The status and fault indicators are explained in Table 4-4 in the order in which they are arranged on the FM 456-2 application function module.

  • Page 61: Memory Card

    FM 456-2 Functions and Technical Data Table 4-4 Meaning of the Status and Fault Indicators on the FM 456-2 Indicator Meaning Description SD(green) Access to memory card Lights when read or write access to the memory card occurs. Access to hard disk Lights when read or write access to (green) the hard disk on the mass storage...

  • Page 62: Expansion Socket

    FM 456-2 Functions and Technical Data Drive Assignment and Boot Sequence The memory card is addressed by the operating system in the same way as a conventional drive. The drive assignment and the boot sequence can be set in the BIOS setup (see chapter on central processing units for M7-400, BIOS setup of the reference manual /1/ .

  • Page 63: Slots For Interface Submodules

    FM 456-2 Functions and Technical Data Slots for Interface Submodules Definition The submodule slot is a receptacle for a submodule. The FM 456-2 application function module has a slot for the memory card and two slots for interface submodules. Figure 4-4 shows the position of the two slots for interface submodules on the FM 456-2 application function module.
  • Page 64 FM 456-2 Functions and Technical Data FM 456-2 EXM 478 Slot Figure 4-5 Submodule Slot Numbers on the FM 456-2 and EXM 478 Preferred Slot for IF 964-DP If the IF 964-DP interface module is inserted in the preferred slot number 3 or if no IF 964-DP interface module is used, the whole main memory up to 16 Mbytes can be used.

  • Page 65: Watchdog

    FM 456-2 Functions and Technical Data Watchdog Method of Operation The FM 456-2 contains a watchdog for monitoring user programs. This is called on a cyclic basis by the system software. If the cyclic operation fails (for instance, if the software “hangs”), the module is reset after the watchdog period has expired. The cause of the reset is stored and is evaluated by the diagnosis software.

  • Page 66: Bios Setup

    Input Output System) starts a ”Power On Self Test” (POST) and outputs the results in the POST window. PowerBIOS Version 1.00 Copyright (C) 1984 – 1996 Award Software Intl., Inc. 03/13/96 – Intel–82430HX-3A59I000 01 0000 Siemens AG FM456-2 M7-BIOS A2.11 –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– CPU Type Pentium 120MHz Math CoProcessor...

  • Page 67: Address And Interrupt Assignments

    FM 456-2 Functions and Technical Data 4.11 Address and Interrupt Assignments This section contains detailed information in tabular form about I/O address area mapping, memory and interrupt assignments in the FM 456-2 application function module. Memory Assignment The main memory is assigned as follows in the FM 456-2: Table 4-5 Main Memory Assignment Address...
  • Page 68 FM 456-2 Functions and Technical Data Memory Areas for AT Cards AT cards which are inserted in the expansion module ATM 478 can occupy the following memory areas: M7 RMOS32 with MS-DOS Area M7 RMOS32 Without EMS With EMS D 0000H to E 7FFFH 96 K 96 K 32 K...
  • Page 69 FM 456-2 Functions and Technical Data Interrupt Assignment Table 4-6 Interrupt Assignment Interrupt Function Group signal for fault signals IRQ0 System timer IRQ1 Reserved for keyboard IRQ2 Cascading of the 2nd interrupt controller IRQ3 Reserved for COM2, otherwise free IRQ4 Reserved for COM1, otherwise free IRQ5 Reserved for LPT2, otherwise free...

  • Page 70: Technical Data

    FM 456-2 Functions and Technical Data 4.12 Technical Data Features and Technical Data of the FM 456-2 The following table shows the features and technical details of the FM 456-2 application function modules. Note The “General technical data” of the S7/M7-400 logic controllers applies (see reference manual /1/ ), unless otherwise specified in this section.
  • Page 71 Ordering Information In this Chapter Table Subject Page M7-400 Application Function Modules M7-400 Expansion Modules M7-400 Interface Submodules Memory Card Connecting Cables Spare Parts and Accessories Documentation M7-400 Application Function Modules Table 5-1 Order Numbers for M7-400 Application Function Modules Product Description Order Number...
  • Page 72 Ordering Information M7-400 Expansion Modules Table 5-2 lists all the expansion modules that can be used with the M7-400 application function modules. Table 5-2 Order Numbers for M7-400 Expansion Modules Product Description Order Number ATM 478 AT adapter module (to accept a short AT 6ES7 478-2CA00-0AC0 module) EXM 478...

  • Page 73: Ordering Information

    Ordering Information Memory Card Table 5-4 lists all the memory cards that can be used with M7-400 application function modules. Table 5-4 Order Numbers for Memory Card Description Order Number Memory Card, flash-EPROM, 5 V, 4 Mbytes 6ES7 952-1KM00-0AA0 Memory Card, flash-EPROM, 5 V, 8 Mbytes 6ES7 952-1KP00-0AA0 Memory Card, flash-EPROM, 5 V, 16 Mbytes 6ES7 952-1KS00-0AA0...
  • Page 74 Ordering Information Documentation Table 5-7 lists all the documentation that can be ordered in addition to this manual. Table 5-7 Order Numbers for Documentation Description Langugage Order Number FM 456 Application Function Module English 6ES7456-2AA00-8BA0 Installation, Hardware, and Startup French 6ES7456-2AA00-8CA0 Manual S7-400, M7-400 Programmable Controllers...

  • Page 75: Bibliography

    Bibliography For programming and startup of the M7-400 application function modules you will need the following manuals in addition: Manual Content Order Number S7-400, M7-400 Programmable Configuration, installation 6ES7498-8AA02-8AA0 Controllers and preparation for startup Installation and Hardware Manual Module Specifications, Reference Manual M7-SYS, System Software for M7-300/400 Writing C Programs for...
  • Page 76 Bibliography FM 456-2 Application Function Module Installation, Hardware, and Startup C79000-G7076-C458-01...

  • Page 77: Rules For Handling Electrostatically Sensitive Devices (Esd)

    Rules for Handling Electrostatically Sensitive Devices (ESD) Introduction This appendix explains What lies behind the term “electrostatically sensitive devices” What precautions must be observed when handling electrostatically sensitive modules. Contents You will find the following information about electrostatically sensitive modules in this appendix: Section Subject...

  • Page 78: What Does Esd Mean

    Rules for Handling Electrostatically Sensitive Devices (ESD) What Does ESD Mean? Definition All electronic modules are equipped with highly integrated devices or components. Because of their technology, these components are very sensitive to overvoltages and therefore to static electrical discharges. The abbreviation ESD is used internationally for these Electrostatically Sensitive Devices.

  • Page 79: Electrostatic Charging Of Persons

    Rules for Handling Electrostatically Sensitive Devices (ESD) Electrostatic Charging of Persons Charging Any person whose electrical potential is not equalized to that in their environment can become electrostatically charged. Figure B-1 shows the maximum electrostatic voltage with which a person can become charged when coming into contact with the materials shown.

  • Page 80: Basic Precautions Against Electrostatic Discharge

    Rules for Handling Electrostatically Sensitive Devices (ESD) Basic Precautions Against Electrostatic Discharge Ensure a Good Ground When handling electrostatically sensitive modules, ensure that persons, workplace and packaging are effectively earthed. This will avoid static charging. Avoid Touching Components Directly Only touch electrostatically sensitive components if this is unavoidable (for example during maintenance work).

  • Page 81: Index

    Index Address and interrupt assignments, FM 456-2, Fault indicators, FM 456-2, 4-6 4-13 First switch-on, 2-26 AT card, installing, 2-6 FM 456-2 ATM 478, installing the AT card, 2-6 address and interrupt assignments, 4-13 BIOS setup, 4-12 buffering, 4-11 expansion socket, 4-8 fault indicators, 4-6 BIOS, M7-400, warm start, 4-12 interface modules, 4-9...
  • Page 82 Index Keyboard, 2-21 Performance features, FM 456-2, 4-2 Plug, removing the cover, 2-9 Preparing for operation, M7-400, 2-20 checklist, 2-20 Printer, 2-22 LED indicators, FM 456-2, 4-6 PROFIBUS-DP , 2-20 M7-400, memory assignment, 4-13 Setup, 4-12 M7-400, components, 1-4 Socket, removing the cover, 2-9 Memory assignment, M7-400, 4-13 Startup, Sections, 2-1 Memory card...
  • Page 83 Siemens AG A&D AS E 81 Oestliche Rheinbrueckenstr. 50 D-76181 Karlsruhe Federal Republic of Germany From: Your Name: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...
  • Page 84 Your comments and recommendations will help us to improve the quality and usefulness of our publications. Please take the first available opportunity to fill out this questionnaire and return it to Siemens. Please give each of the following questions your own personal mark within the range from 1 (very good) to 5 (poor).

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