Siemens Second Wind Parts list manual

SIMATIC HMI Fail-safe operation of the Mobile Panel 277F IWLAN
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
_
_____________
Preface
Overview and definition of
terms
1
Safety instructions,
standards and notes
2
Application Planning
3
Configuration
4
System commissioning
5
Operation
6
Diagnostics
7
Maintenance
8
Technical data
9
Application example: Safety
Functions
A
SIMATIC HMI
Fail-safe operation of the
Mobile Panel 277F IWLAN
Function Manual
08/2008
A5E01003779-01
Version 1.04
Order No. 6AV6691-1FQ01-2AB0
The following supplement is part of this documentation:
No. Designation Drawing number Edition
1 Product Information A5E01005059-01 09/2008
2 Product Information A5E01004934-02 10/2008

Legal information
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning and
operation of a device/system may only be performed by qualified personnel. Within the context of the safety notes
in this documentation qualified persons are defined as persons who are authorized to commission, ground and
label devices, systems and circuits in accordance with established safety practices and standards.
Prescribed Usage
Note the following:
WARNING
This device may only be used for the applications described in the catalog or the technical description and only
in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage,
positioning and assembly as well as careful operation and maintenance.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order-No.: 6AV6691-1FQ01-2AB0
Ⓟ 08/2008
Copyright © Siemens AG 2008.
Technical data subject to change

Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 3
Preface
Purpose of the function manual
This function manual provides all information required for operation of the Mobile
Panel 277F IWLAN in fail-safe systems.
Readership of this function manual:
● Plant designers
● Project engineers
● Commissioning engineers
● Users
● Service technicians
● Maintenance technicians
Please pay particular attention to the "Safety instructions, standards and notes" chapter.
Basic knowledge required
General knowledge in the field of automation technology, safety technology, and process
communication is a prerequisite for comprehension of this function manual.
It is also assumed that those using the manual have experience in using personal computers
and knowledge of Microsoft operating systems.
Valid scope of the function manual
The function manual covers the Mobile Panel 277F IWLAN HMI device in combination with
the software packages STEP 7 V5.4 SP2 or higher, S7 Distributed Safety V5.4 SP3 and
WinCC flexible 2007 with HSP Mobile Panel 277 Wireless.
Position in the information landscape
This function manual is part of the SIMATIC HMI documentation. The section below provides
an overview of the documentation which is relevant to applications with Mobile
Panel 277F IWLAN.
Additional documentation for Mobile Panel 277F IWLAN
● Operating instructions for Mobile Panel 277F IWLAN
● Mobile Panel IWLAN Getting Started

Preface
Fail-safe operation of the Mobile Panel 277F IWLAN
4 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Documentation for fail-safe systems
● System description "Safety technology in SIMATIC S7"
– Provides general information on the use, structure, and mode of operation of the fail-
safe automation systems S7 Distributed Safety and S7 F/FH Systems
– Contains detailed technical information which can be represented for the fail-safe
technology both in S7-300 and S7-400.
– Contains information about the calculation of monitoring and reaction times of the fail-
safe systems S7 Distributed Safety and of S7 F/FH Systems.
● "S7 Distributed Safety, Configuring and Programming" Manual / Online Help
Describes the configuration of the F-CPU and of the fail-safe I/O and the programming of
the F-CPU in F-FBD or F-LAD
● "Automation System S7-400, CPU Data" Reference Manual
Describes the standard functions of CPU 416F-3 PN/DP, CPU 414-3 PN/DP and
CPU 416-3 PN/DP
● "Automation System S7-300, CPU Data" Reference Manual
Describes the standard functions of CPU 315F-2 PN/DP, CPU 317F-2 PN/DP,
CPU 315-2 PN/DP and CPU 317-2 PN/DP
User manuals
● WinCC flexible Compact/ Standard/ Advanced
Describes basic principles of configuration using the WinCC flexible Compact
Engineering System/WinCC flexible Standard/WinCC flexible Advanced.
● WinCC flexible Runtime
Describes how to commission and operate your runtime project on a PC.
● Communication
– Communication Part 1 describes the connection of the HMI device to SIMATIC PLCs.
– Communication Part 2 describes the connection of the HMI device to third-party PLCs.
Getting started
● WinCC flexible for first time users
Based on an example project, this is a step-by-step introduction to the basics of
configuring screens, alarms, recipes and screen navigation.
● WinCC flexible for power users
Based on an example project, this is a step-by-step introduction to the basics of
configuring logs, project reports, scripts, user management, multilingual projects and
integration in STEP 7.
● WinCC flexible options
Based on an example project, this is a step-by-step introduction to the basics of
configuring the WinCC flexible Sm@rtServices, Sm@rtAccess and OPC server options.

Preface
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 5
Online availability
The link below guides you to the multilingual technical documentation offered for the
SIMATIC products and systems.
"http://www.automation.siemens.com/simatic/portal/html_76/techdoku.htm"
Screens
The HMI device is sometimes represented in the form of photographs in this function
manual. The photographs of the HMI device may differ slightly from the factory state of the
HMI device.
Conventions
Configuration and runtime software differ with regard to their names as follows:
● "WinCC flexible 2007" for example, refers to the configuration software.
The term "WinCC flexible" is used in a general context. The full name, for example
"WinCC flexible 2007", is always used when it is necessary to differentiate between
different versions of the configuration software.
● "WinCC flexible Runtime" refers to the runtime software that can run on HMI devices.
The following text notation facilitates the reading of this function manual:
Notation Scope
"Add screen" •Terminology that appears in the user interface, for example
dialog names, tabs, buttons, menu commands
•Inputs required, for example limit values, tag values
•Path information
"File > Edit" Operational sequences, for example menu commands, shortcut
menu commands.
<F1>, <Alt+P> Keyboard operation
Please observe notes labeled as follows:
Note
Notes contain important information concerning the product, its use or a specific section of
the documentation to which you should pay particular attention.
Trademarks
Names labeled with a ® symbol are registered trademarks of the Siemens AG. Other names
used in this documentation may be trademarks, the use of which by third parties for their
own purposes could violate the rights of the owner.
● HMI®
● SIMATIC®
● SIMATIC HMI®
● SIMATIC ProTool®
● SIMATIC WinCC®

Preface
Fail-safe operation of the Mobile Panel 277F IWLAN
6 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Representatives and offices
If you have any further questions relating to the products described in this manual, please
contact your local representative at the Siemens branch nearest you.
Your Siemens representative can be found at "http://www.automation.siemens.com/partner".
Training center
Siemens AG offers a variety of training courses to familiarize you with automation systems.
Please contact your regional training center, or our central training center in 90327
Nuremberg, Germany, for details.
Internet: "http://www.sitrain.com"
Technical support
You can contact Technical Support as follows:
Using the support request form on the web at:
"http://www.siemens.com/automation/support-request"
Further information about our technical support is available on the Internet at
"http://www.siemens.com/automation/service".
Service & Support on the Internet
Service & Support provides additional comprehensive information on SIMATIC products
through online services at "http://www.siemens.com/automation/support":
● The newsletter offers you the latest information about your products
● A large document base is available using our Service & Support search engine
● A forum for global exchange of information by users and experts
● Current product information, FAQs and downloads
● Your local Automation & Drives representative
● Information about on-site services, repairs, spare parts, and more

Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 7
Table of contents
Preface ...................................................................................................................................................... 3
1 Overview and definition of terms.............................................................................................................. 11
1.1 Using the Mobile Panel 277F IWLAN ..........................................................................................11
1.2 Areas in the plant .........................................................................................................................12
1.3 Switch-off behavior ......................................................................................................................16
1.4 Integration and segregation .........................................................................................................18
1.5 Log on and log off at the effective range .....................................................................................19
1.6 Safety-oriented operator controls.................................................................................................20
1.6.1 Emergency stop button................................................................................................................20
1.6.2 Enabling button ............................................................................................................................22
1.7 "Override" mode...........................................................................................................................24
2 Safety instructions, standards and notes ................................................................................................. 27
2.1 Safety instructions........................................................................................................................27
2.2 Guidelines, standards, certificates and approvals .......................................................................30
2.3 Operating safety...........................................................................................................................33
2.4 Power supply................................................................................................................................34
2.5 Notes about usage.......................................................................................................................36
2.6 Risk analysis ................................................................................................................................37
2.7 Safety functions of the emergency stop button............................................................................37
2.8 Safety functions of the enabling button........................................................................................39
3 Application Planning ................................................................................................................................ 41
3.1 Check list: Planning the application .............................................................................................41
3.2 Application and ambient conditions .............................................................................................42
3.3 Check list: Planning the system...................................................................................................45
3.4 Planning effective ranges.............................................................................................................46
3.5 For the "Override" mode: Planning the protective devices..........................................................49
3.6 Check list: Data security ..............................................................................................................50
4 Configuration ........................................................................................................................................... 53
4.1 Check list: Configuration ..............................................................................................................53
4.2 Procedure for configuration..........................................................................................................53
4.3 STEP 7: HW Config .....................................................................................................................55
4.3.1 Integrating the GSD file in STEP 7 ..............................................................................................55
4.3.2 Assigning parameters for communication between the HMI device and the controller...............55

Table of contents
Fail-safe operation of the Mobile Panel 277F IWLAN
8 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
4.4 S7 Distributed Safety .................................................................................................................. 58
4.4.1 Checklist: Creation of the safety program................................................................................... 59
4.4.2 Using F-FBs ................................................................................................................................ 60
4.4.3 FB161: Mobile Panel Status (F_FB_MP) .................................................................................... 63
4.4.4 FB162: Effective range for 4 Mobile Panel (F_FB_RNG_4) / FB 163 Effective range for 16
Mobile Panel (F_FB_RNG_16).................................................................................................... 67
4.5 WinCC flexible............................................................................................................................. 72
4.5.1 Configuration overview................................................................................................................ 72
4.5.2 Effective ranges editor ................................................................................................................ 73
4.5.3 Objects for the Mobile Panel 277F IWLAN ................................................................................. 73
5 System commissioning ............................................................................................................................ 77
5.1 Acceptance of the system........................................................................................................... 77
5.2 Accepting effective ranges and transponders............................................................................. 79
6 Operation................................................................................................................................................. 83
6.1 Organizational measures ............................................................................................................ 83
6.2 Typical applications..................................................................................................................... 84
6.2.1 Overview ..................................................................................................................................... 84
6.2.2 Switch on the HMI device............................................................................................................ 85
6.2.3 Integrating and segregating the HMI device ...............................................................................86
6.2.3.1 Integrating the HMI device (start project).................................................................................... 86
6.2.3.2 Communication error for the integrated HMI device ................................................................... 87
6.2.3.3 Discrepancy error during enabling .............................................................................................. 88
6.2.3.4 Segregate.................................................................................................................................... 90
6.2.4 Log on and log off at the effective range..................................................................................... 91
6.2.4.1 Detecting the effective range ...................................................................................................... 91
6.2.4.2 Log on at the effective range ...................................................................................................... 92
6.2.4.3 Log off at the effective range ...................................................................................................... 93
6.2.5 Behavior in the effective rage ..................................................................................................... 94
6.2.5.1 Exiting the effective range without log off ................................................................................... 94
6.2.6 "Override" mode.......................................................................................................................... 95
6.2.6.1 Activating "override" mode.......................................................................................................... 95
6.2.6.2 Terminating "override" mode....................................................................................................... 96
6.2.7 Special operating conditions ....................................................................................................... 97
6.2.7.1 Internal error................................................................................................................................ 97
6.2.7.2 Communication error with the HMI device logged on in the effective range .............................. 98
7 Diagnostics.............................................................................................................................................. 99
7.1 Alarm messages ......................................................................................................................... 99
7.2 Diagnostics................................................................................................................................ 101
8 Maintenance .......................................................................................................................................... 105
8.1 Function tests............................................................................................................................ 105
8.2 Maintenance cycles................................................................................................................... 105
8.3 Cleaning, repairs and spare parts............................................................................................. 106
9 Technical data ....................................................................................................................................... 109
9.1 Technical data for fail-safe operation........................................................................................ 109
9.2 HMI device ................................................................................................................................ 111
9.3 Charging station ........................................................................................................................ 112

Table of contents
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 9
A Application example: Safety Functions .................................................................................................. 113
A.1 Configuration and operation.......................................................................................................113
A.2 Components and settings used .................................................................................................116
A.3 Safety program S7 Distributed Safety .......................................................................................121
Index...................................................................................................................................................... 127

Table of contents
Fail-safe operation of the Mobile Panel 277F IWLAN
10 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0

Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 11
Overview and definition of terms 1
1.1 Using the Mobile Panel 277F IWLAN
Use
The Mobile Panel 277F IWLAN offers the possibility of having the mobile safety functions of
emergency stop and enable available at any point of a machine or plant. An effective range
limit has been implemented for the Mobile Panel 277F IWLAN. Depending on his location,
the operator obtains a safe, electronically monitored operator control enable.
The HMI device communicates with an access point via WLAN. Thus the operator can
operate the various machines or process cells without bothersome cable. The HMI device is
connected via the access point with a PROFINET network in which it communicates with an
F-CPU via the PROFIsafe protocol.
Sample installation - F-system with Mobile Panel 277F IWLAN
6
(76
352),1(7
0RELOH3DQHO),:/$1
6&$/$1&(
$FFHVV3RLQW
6,0$7,&6)31'3DV
352),1(7,2FRQWUROOHU
)DLOVDIH,2DV
352),1(7,2GHYLFH
In the depicted configuration, each PROFINET IO device communicates with a single
PROFINET IO controller. In this example the Mobile Panel 277F IWLAN communicates
exclusively with the F-CPU as F-PROFINET IO controller.
Basic terms
In the following chapters several basic terms are explained that you must learn before you
use the HMI device.

Overview and definition of terms
1.2 Areas in the plant
Fail-safe operation of the Mobile Panel 277F IWLAN
12 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
1.2 Areas in the plant
WLAN area
The WLAN area is the area in the plant where the HMI device communicates with other
communication nodes over a wireless local area network.



352),VDIH
① Access point is the network transition from WLAN to LAN
② WLAN area in which communication with the access point is possible
③ Mobile panel in the WLAN area; the emergency stop button is active, the enabling buttons are
without function.
When the PROFIsafe communication between the controller and operator panel is
established in the WLAN area, the emergency stop button on the HMI device becomes
active.
Safe operation of the plant with the enabling buttons only becomes possible when the HMI
device is logged on in an effective range within the WLAN area.

Overview and definition of terms
1.2 Areas in the plant
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 13
Effective range
An effective range is the range in which sections of the plant, e.g. a machine can be
operated with the enabling buttons of the HMI device. An effective range is formed physically
with transponders that are mounted in the vicinity of the machine. Each transponder has a
unique ID. The transponder emits this ID in a lobe-shaped area. The ID is received by the
HMI device, which enables the HMI device to determine its distance from the transponder.
Additional information about the transponders is provided in the chapter Planning effective
ranges (Page 46) and in the operating instructions for the HMI device.



352),VDIH
① Effective range 1, formed by a transponder
② Effective range 2, formed by two transponders
③ The mobile panel is located in effective range 3. The emergency stop button is active The
enabling buttons are active after logon in the effective range.
When the HMI device detects that it is within an effective range the operator can log the HMI
device on at the effective range. Safe operation of the plant unit delimited by the effective
range is only possible after successful connection.
Effective ranges should not overlap.
All effective ranges available in the plant are stored in the project. The effective ranges are
verified in the acceptance procedure for the plant.

Overview and definition of terms
1.2 Areas in the plant
Fail-safe operation of the Mobile Panel 277F IWLAN
14 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Note
In addition to the effective ranges you can define zones in your project. The zones are not
relevant for fail-safe operation. They are used merely to control the project depending on the
location of the operator. For example a picture change can be configured for zone entry or
zone exit.
Zones and effective range are independent of each other.
Additional information on zones is provided in the Operating instructions for the HMI device.
Distance measurement between HMI device and transponder
The transmitting range of the transponder and the receiving range of the HMI device have
the approximate shape of a lobe with a range of approximately 8 m.
The detailed representation of the radiation characteristics of HMI device and transponder is
provided in the appendix of the Operating instructions.
A distance measurement between HMI device and transponder is only possible if both
devices are in range of each other. The following table shows when a distance measurement
is successful.

Overview and definition of terms
1.2 Areas in the plant
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 15
In the figures the HMI device and transponder are represented as follows:
● The HMI device as circle
● The transponder as square
HMI device in the
transmitting range of
the transponder
Yes Yes No
Transponder in the
receiving range of the
HMI device
Yes No Yes
Result Successful distance
measurement
Distance measurement
not possible
Distance measurement
not possible
The distance measurement is executed in the following manner:
● The HMI device emits signals in the current project.
● The transponder reacts to the signal from the HMI device and transmits its ID to the HMI
device.
● The HMI device evaluates the ID and only measures the distance to the configured
transponders.
See also
Integration and segregation (Page 18)
Planning effective ranges (Page 46)

Overview and definition of terms
1.3 Switch-off behavior
Fail-safe operation of the Mobile Panel 277F IWLAN
16 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
1.3 Switch-off behavior
Introduction
Different switch-off behavior is possible depending on the situation in the plant:
● Emergency stop
● Shutdown
● Local rampdown.
● Global rampdown
Plant switch-off differs in its triggers and effects.
DANGER
No switch off triggering
In the plant the described switch-off behavior is only triggered if the F-CPU has been
programmed accordingly.
Emergency stop
The operator triggers the emergency stop by pressing the emergency stop button.
Emergency stop is a procedure in response to an emergency that is intended to stop a
process or movement that could result in danger (from EN 60204-1 Appendix D).
The emergency stop immediately stops all machines that are assigned to the F-CPU via the
safety program.
The emergency stop depends on the effective ranges.
The emergency stop button is always active if there is PROFIsafe communication between
HMI device and F-CPU, i.e. if the HMI device is integrated in the PROFIsafe communication.
Shutdown
Shutdown is triggered if the F-CPU detects a communication error on an HMI device which is
logged on in the effective range.
Shutdown is the immediate stopping of the machines which belong to the effective range.
The shutdown is always specific to the effective range.
Local rampdown.
Local rampdown is triggered if the HMI device is logged on at the effective range and if it is
removed from the effective range for longer than 30 seconds.
Local rampdown is the defined shutdown of the machines belonging to the effective range
within a defined time period.
Local rampdown is always specific to the effective range.

Overview and definition of terms
1.3 Switch-off behavior
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 17
Global rampdown
Global rampdown is triggered if the F-CPU detects a communication error on an HMI device
which is integrated in the PROFIsafe communication.
Global rampdown is the defined shutdown of the machines assigned in the safety program
within a defined time period.
Global rampdown is independent of the effective ranges.
In the safety program of the F-CPU, ensure that global rampdown is available in the event
that a communication error occurs on an HMI device which is integrated in the PROFIsafe
communication.
Trigger
The switch off can have the following triggers:
● The operator presses the emergency stop button.
● A communication error occurs.
● Timeout: The HMI device is logged on at the effective range and the operator leaves the
effective range with his HMI device for longer than 30 seconds.
Triggering the switch off
The following table shows the effect of the different triggers depending on the operating
situation:
Trigger Operating situation
Emergency stop
pressed
Communication
error
Timeout
HMI not integrated --- --- ---
HMI device is in the
effective range
Emergency stop Shutdown ---
HMI device is outside of the
effective range for less than
30 seconds
Emergency stop Shutdown ---
HMI device logged on
at the effective range
HMI device is outside of the
effective range for longer
than 30 seconds
Emergency stop Shutdown Local
rampdown.
HMI
integrated
HMI device is logged off from the effective range Emergency stop Global
rampdown
---

Overview and definition of terms
1.4 Integration and segregation
Fail-safe operation of the Mobile Panel 277F IWLAN
18 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
1.4 Integration and segregation
Introduction
In fail-safe operation a safety program runs in the F-CPU. This safety program
communicates with the HMI device. The F-CPU monitors this communication for errors and
analyzes the signals. The terms "integrate" and "segregate" refer to the integration and
segregation of the HMI device in/from the safety program of the F-CPU.
Integrate
If the HMI device is configured for the safety program then when the HMI device starts it is
automatically integrated in the safety program. The integration process is concluded as soon
as the LED"SAFE" is illuminated.
The emergency stop button is active as soon as the HMI device is integrated.
Segregation
Segregation means the desired segregation of the HMI device from the safety program.
The operator has the following alternatives for segregating the HMI device:
● The operator terminates the project.
● The operator presses the ON/OFF button for longer than 4 seconds. After the
segregation process the HMI device switches off.
When the operator segregates the HMI device there are no side effects, e.g. a global
rampdown. When the segregation process is terminated the LED "SAFE" and the
emergency stop button are no longer active.
See also
Safety functions of the emergency stop button (Page 37)

Overview and definition of terms
1.5 Log on and log off at the effective range
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0 19
1.5 Log on and log off at the effective range
Introduction
An effective range is the range within which plant units, e.g. a machine, can be operated with
the enabling buttons of the HMI device. The prerequisite for this is that the operator must log
the HMI device on at the effective range.
Logging on at the effective range
If the operator enters an effective range with the HMI device the system shows that he can
log the HMI device on at the effective range via the "Effective range name" object.
To log on he touches the "Effective range name" object. Then he reads the effective range
ID in the plant and enters this ID in the ""Effective range logon" dialog box.
If the entered effective range ID agrees with the configured ID then the HMI device is logged
on.
When the HMI device is logged on the enabling buttons are active.
The system alerts the operator that the HMI device is logged on at the effective range in the
following manner:
● The LED "RNG" is illuminated.
● The "Effective range name" object is displayed in green.
● In the process cell the indicator for the effective range is active, e.g. a lamp.
When the HMI device is logged on at the effective range the following rules apply:
● The operator should not leave the effective range without logging off. Local rampdown
occurs if the operator leaves the effective range for longer than 30 seconds without
logging off.
● No other HMI device can log on at this effective range.
Log off at the effective range
Before the operator exits the effective range at which the HMI device is logged on, he must
log off from the effective range. To log off he touches the "Effective range name" object and
edits the dialog box ""Effective range logoff".
When the HMI device is logged off the enabling buttons are no longer active. The
LED "RNG" is not illuminated.
See also
Log on and log off at the effective range (Page 91)

Overview and definition of terms
1.6 Safety-oriented operator controls
Fail-safe operation of the Mobile Panel 277F IWLAN
20 Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
1.6 Safety-oriented operator controls
Introduction
The Mobile Panel 277F IWLAN has the following elements for safe operation of a process
cell:
● Emergency stop button
● Enabling button
1.6.1 Emergency stop button
Introduction
The emergency stop button is designed with 2-channels and enables an emergency stop of
the configured system.
The emergency stop button satisfies the requirements specified in DIN IEC 60947-5-5;1997
Annex K.
For additional safety instructions please refer to the chapter, Safety instructions, standards
and notes.
When using the emergency stop button the following F-FBs must be linked in the safety
program of the F-CPU:
● F_FB_MP
● F_FB_RNG_n


① Fall protection
② Emergency stop button