Siemens as-interface ANALYSER 3RK1 904-3AB01 User manual

AS-Interface Analyser Table of Contents s
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Table of Contents
1 The Symbols Used .............................................................................. 4
2 Safety ................................................................................................... 5
2.1 Intended Use ......................................................................................................5
2.2 General Safety Information ...............................................................................5
3 The AS-Interface Analyser ................................................................. 6
3.1 General ...............................................................................................................6
3.2 Version 2.0 ..........................................................................................................6
3.2.1 Manual .................................................................................................................6
4 Quick Start ........................................................................................... 8
4.1 Installation and First Steps ...............................................................................8
4.2 Index Card: Overview ........................................................................................8
4.3 Index Card: Overview with Hold Time ..............................................................9
4.4 Advanced Statistics ...........................................................................................9
4.5 Consecutive Errors ............................................................................................9
4.6 Configuration .....................................................................................................9
4.7 Logging ...............................................................................................................9
4.8 I/O Data ...............................................................................................................9
4.9 Trace Mode .........................................................................................................9
5 Functions of the Analyser ................................................................ 11
5.1 Overview ...........................................................................................................11
5.2 Installation ........................................................................................................13
5.3 Online Statistics (Standard Mode) .................................................................13
5.3.1 Overview ............................................................................................................14
5.3.2 Overview with Hold Time ...................................................................................15
5.3.3 Advanced Statistics ............................................................................................15
5.3.4 Consecutive Errors ............................................................................................16
5.3.5 Configuration ......................................................................................................18
5.3.6 Online Statistics without Notebook ....................................................................19
5.4 Logging of the Online Statistics .....................................................................20
5.5 Offline Statistics ...............................................................................................22
5.6 Data Mode .........................................................................................................22
5.6.1 Digital Data ........................................................................................................22
5.6.2 Analog I/O Data .................................................................................................24
5.6.3 Safety Data ........................................................................................................25
5.7 Trace Mode (Expert Mode) ..............................................................................25
5.7.1 Contents of a Trace ...........................................................................................27
5.7.2 Complete Tracing ...............................................................................................27
5.7.3 Manual Start: Trace without a Trigger ................................................................27
5.7.4 Trace with Trigger ..............................................................................................28
5.7.4.1 Internal Trigger ...................................................................................................28
5.7.4.2 External Trigger .................................................................................................30

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5.7.4.3 Trigger Output ................................................................................................... 31
5.7.5 Trace with Recording Filter ................................................................................31
5.7.6 Trace View Filter ................................................................................................ 32
5.7.7 Trace without Notebook ..................................................................................... 32
5.7.8 Safety Data in the Trace .................................................................................... 32
5.7.9 Storage and Offline Working on Traces ............................................................ 34
6 Valuation of Errors ............................................................................35
6.1 Uncritical Networks ......................................................................................... 35
6.2 More Critical Networks .................................................................................... 36
6.3 Facility and Safety Engineering ..................................................................... 36
6.4 Example ............................................................................................................ 36
7 Using the Analyser ............................................................................38
7.1 Checking the actual state ............................................................................... 38
7.2 Logging the Actual State ................................................................................ 38
7.3 Error Diagnostics in the Network ................................................................... 39
7.3.1 Failure of a Slave ...............................................................................................39
7.3.2 Error by External Disturbances .......................................................................... 39
7.3.3 Error by Bad Contact ......................................................................................... 40
7.3.4 Error by Overloaded Slaves .............................................................................. 40
7.3.5 Errors by Excess Length or by High-capacity Slaves ........................................ 41
7.3.6 Error by Configuration Deviation ....................................................................... 41
7.3.7 Control of Corrective Measures .........................................................................42
7.4 Error Diagnostics and Optimization of the Application ............................... 42
7.5 Development Accompanying Control of Slave and Master ......................... 42
8 Technical Data ...................................................................................43
9 Index ...................................................................................................44
10 We Are Interested in Your Opinion! .................................................46

AS-Interface Analyser The Symbols Used s
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1 The Symbols Used
This symbol warns the user of possible danger. Not following this
warning can lead to personal injury or death and/or destruction of
the equipment.
This symbol warns the user of a possible failure. Not following this
warning can lead to total failure of the device or any other connected
equipment.
This symbol draws the user's attention to important information.

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2 Safety
2.1 Intended Use
2.2 General Safety Information
The protection of operating personnel and the system against possi-
ble danger is not guaranteed if the control interface unit is not oper-
ated in accordance with its intended use.
The device may only be operated by appropriately qualified person-
nel in accordance with this operating manual.
Safety and correct functioning of the device cannot be guaranteed if
any operation other than that described in this operation manual is
performed.
Connecting the equipment and any maintenance work to be carried
out with voltage applied to the equipment must exclusively be per-
formed by appropriately qualified electrotechnical personnel.
In case a failure cannot be repaired, the device must be taken out of
operation and kept from inadvertently being put back into operation.
Repair work is to be carried out by the manufacturer only. Additions
or modifications to the equipment are not allowed and will void the
warranty.
The operator is responsible for the observance of local safety stan-
dards.

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3 The AS-Interface Analyser
3.1 General
In the following you will find a detailed description of the AS-Interface Analyser.
The AS-Interface Analyser can give detailed information about the functionality of
new or existing AS-Interface networks.
It completes a master's possibilities, and it is the more valuable the less informati-
on beyond the standard AS-Interface data is provided by the master and the more
hidden an error is.
Theanalyserregistersthe entiredatatraffic withoutinterveningand onlyevaluates
it. So network errors or errors from individual slaves can be easily identified and
corrected by the user. Configuration and quality of the network can now be logged
and weak points can be prophylactically uncovered.
Like all AS-Interface devices the analyser is interoperable, that means it can be
used in network with products from different manufacturers.
3.2 Version 2.0
The version 2.0 of the analyser brings a whole set of new possibilities apart from
many improvements in the detail: definition and disposition of "consecutive errors"
for a more rational evaluation of telegram repetitions, default-settings and offline-
executionoftheprotocols, analog data output, function as safety monitorin the tra-
ce mode and finally an optimized operator guidance which allows also users with
smaller experiences with AS-Interface to penetrate into the range of the "expert-
mode".
3.2.1 Manual
The manual is structured into four major chapters, which addresses different
users.
Chapter 4 Quick Start
For well experienced users who are familiar with AS-Interface or users who need
a fast result without loss of time.
In this chapter we describe the fast installation and directly usable functions. Spe-
cial cases and detailed descriptions will follow in the next chapters.
Chapter 5 Features and Functions
For users, who want to understand all functions of the analyser, or users who want
detailed information about specific functions. This description presupposes only
basic knowledge of AS-Interface.
For each function first the principle and then the possible result is described. After
this a detailed description from the procedure will follow. Possible causes for an
unexpected behavior of the network or the analyser will be discussed.
Chapter 6 Evaluation of Telegram Repetitions
AS-Interface is extremely fault tolerant. The analyser shows all telegram repetiti-
ons in the network, however, they must not be necessarily interpreted and elimi-
nated as "errors".

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We will give you indications to a meaningful and economic handling of the results.
Chapter 7 To Use the Analyser
The analyser can be used for very different applications. This could be logging of
net conditions, over detailed error tracing up to the optimization of the compon-
ents. We will describe these different application types.
Chapter 8 Technical Data
Chapter 9 Index
Readers which use chapters 5, 6 and 7, can skip over chapter 4. Chapters 5 to 7
are written in a way that also readers without detailed AS-Interface knowledge can
use the analyser.

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4QuickStart
4.1 Installation and First Steps
The analyser is a "listener" in the AS-Interface network. It controls the message
traffic and evaluates it, without intervening. So he can "hear" more than any supe-
rior control.
The results are stored in the analyser, then transmitted to a PC or notebook where
it can be analysed and displayed.
Installation instructions:
• If the analyser is used for the first time: Please install the analyser software
(setup_en.exe) on your PC or notebook which will be connected with the anal-
yser. The analyser itself is ready for operation without any special preparation.
• Connect the analyser over the characterized inputs like a slave at any place in
the AS-Interface net.
• Contrary to a normal slave the analyser does not have an own address. The
AS-Interface does not have to be disconnected.
• Connect the analyser over the provided cable to the computer which contains
the analyser software; you can connect to the computer's RS232-socket or –
over a suitable adapter – to a USB port.
• The analyser does not need an additional power supply. The PC and the
AS-Interface net remain galvanically separated.
• Start the analyser software on your PC.
4.2 Index Card: Overview
With the start you receive immediately a current function overview of the network
in a typical "traffic lights" representation (Fig. 3). It shows for the actual configura-
tion, which slaves
• are without any problem (green),
• are noticeable because of Telegram repetitions ("warning", yellow),
• exhibit too many repetitions or (possibly temporary) completely fail ("error", red).
If the master of the net is in the "protected mode" the representation shows in ad-
dition which slave addresses are
• occupied, but not or wrongly configured (grey).
In this overview the critical messages "yellow", "red" and "grey" remain displayed
as long as either the net gets a restart or the Analyser is put back by pushing the
"Clear all" button.
If you use a USB adapter avoid to change the analyser or the USB
adapter during the system is running. This can partly lead to crashes
of the system.

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4.3 Index Card: Overview with Hold Time
In the "Overview with Hold Time" view the display is put back after the indicated
"Hold Time".
So the success and failure of changes in the net can be verified quickly.
The "Hold Time" can be changed in the menu under "Options / Statistics".
4.4 Advanced Statistics
In this view you can find for each slave the number of the master's data calls and
the number of the missing slave answers. Additionally you can see the voltage at
the place of the analyser, the cycle time, the measured time since the last deleting
process and the number of the slave telegrams without master calls (Fig. 4).
4.5 Consecutive Errors
All repetitions for each slave are analyzed here:
If only the narrow white field appears, no repetition has occurred during run time.
Up to 6 following broader fields indicate that for the respective slave errors arose.
This is depicted in such a way that you can see the number of consecutive repeti-
tions from 1 until 6 which occurred (Increasing from olive green until red). The lar-
gest "consecutive error" is represented. If a slave is not represented by a field, this
slave is not in an actual data exchange.
Pointing with the mouse to this error representation it is indicated how often that
error has occurred (Fig. 5).
4.6 Configuration
The tab "Configuration" shows the configuration data of the connected slaves at
that moment if the analyser has observed the net otherwise only the ID code is in-
dicated.
4.7 Logging
Fordocumentationof the facility condition theresultsfromthe overview, advanced
statistics, consecutive error, and configuration window can be transferred to a pro-
tocol. It can be supplemented manually by detailed data regarding the facility.
4.8 I/O Data
The call of the "I/O Data" represents the momentary data results of all Slaves in
the net. The representation is refreshed every second. The display shows the
transferred values for the analog slaves and the values "free" or "released" for the
2 channel Safety Slaves.
4.9 Trace Mode
In the trace mode the analyser notes each particular telegram or telegrams selec-
ted according to Filter and Triggers on the AS-Interface line which then can be
loaded into an attached notebook and analyzed there. With the call of the "Safety

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Monitor" an evaluation of the data telegrams of the safety related slaves is started.
For details see chapter 5.7.9.

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5 Functions of the Analyser
5.1 Overview
The Analyser is a "listener" in the AS-Interface network. It controls the message
traffic and evaluates it without intervening. The results are stored in the analyser,
then transmitted to a PC or notebook where it can be analysed and displayed.
The analyser listens and evaluates all signals (including incorrect signals) on the
AS-Interface line. So he can "hear" more than the most masters and especially
then any superior control.
This is used for logging the net status, for error analysis, and for the optimization
of the network and application.
Fig. 1: The functions of the three operating modes.
Contrary to master and slave the analyser does not send telegrams.
it does not have permanent memory for the determined data and is
exclusively dependent on that what happens in the net.
It has got neither an address nor it keeps the configuration after
switching off. It is completely independent of data which are stored
in the master or an application program. The user has to consider
this evaluating the results.

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The analyser can work in three different operating modes: in the online-stati-
stics, in the data mode and in the trace mode (fig. 1). You can see the 3 paths in
the block diagram of the hardware (fig. 2). For details see the following chapters.
Fig. 2: Simplified block diagram of the hardware. It shows the 3 pathways of the analyser
control.

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5.2 Installation
The package consists of the analyser as a data collector and of a PC software for
the evaluation of the data.
The hardware can be connected at any place in the net via the marked inputs
AS-i + und AS-i -. Connect the analyser over the characterized inputs like a slave
at any place in the AS-Interface net without interrupting the network. The analyser
is supplied from there and is ready for analyzing. It immediately begins with the
storage of data from the online statistics. If separated from the voltage supply the
data stored are lost.
The additional trigger in- and -outputs are needed for the trace mode only. The
trigger input reacts to voltage changes between of 18 ... 30 V. The trigger output
changes between 0 V und +5 V and can be used for the control of external devices.
The provided software (setup_en.exe) must be installed on a PC or a notebook.
The provided RS232 cable, possibly combined with a suitable RS232/USB adap-
ter serves as a cable connection between PC and analyser. With the first call of
the software the COM interface must be specified in the menu "Options / AS-Inter-
face Analyser Hardware".
Afterwards the representation of the online statistics stored in the analyser starts
automatically wit the start of the software (for exception see chapter 5.7.8).
5.3 Online Statistics (Standard Mode)
The standard mode with the "Online Statistics" is the mode most commonly used.
The telegrams in the analyser are here statistically evaluated and handed over in
a second rhythm to the PC for displaying and for further mathematical functions.
The results are very simple to use and to interpret. They are immediately available
and give an overview of the functions in several stages and of the possible errors
in the net (fig. 3).
This mode is applicable for the logging of the actual condition as well as for long
termanalysis.The analyserbeginsto storedatadirectlyafterbeingattached to the
Within the analyser a galvanic separation between net and PC, as
well as to the trigger input exists. The trigger output is fed over the
RS232 interface to the PC and may be loaded with maximally 2 mA.
The trigger input must be fed from a PELV power supply.
The function of the analyser is signaled by 3 LEDs. However, the
meaning depends on the operation situation.
• In the normal operation mode with an attached notebook the first
LED "green" signals that the analyser is supplied from the AS-In-
terface net; the second LED marked with "Ser.act." shines yellow
during the communication with the PC. The third LED shows after
a start of a trace the trigger condition: "green" means "trigger re-
leased", "red" means "trigger not released".
• In operation without PC the LED gives an overall status of the net
traffic (compare chapter 5.3.6).

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AS-Interface net. The notebook needs to be attached only for a later data analysis
(see chapter 5.3.6).
5.3.1 Overview
Fig. 3a: The traffic light representation of the online statisticsshows how good or bad the sla-
ves communicates
Then, if the analyser is attached in the net for the first time and the PC software is
called, you receive a functional overview of the slaves in the "traffic light represen-
tation" (fig. 3). It is callable at any time over the main menu "Measure / Online Sta-
tistics" or over the colored marked button.
The traffic light representation
shows,
• which slaves work trouble-free
(green),
• which slaves stand out ("Warn-
ing" yellow),
• which slaves exhibits too many
telegram repetitions or (possi-
bly at times) completely fails
("Error" red).
If the master is in the protected
mode, the representation shows
in addition,
• which slave addresses are oc-
cupied but not or wrongly con-
figured (grey).
In this overview the critical mes-
sages "yellow", "red" and "grey" remain displayed as long as either the net gets a
restart or the analyser is put back by pushing the "Clear All" button.
< 1% errors within one
second
<1% - 5% errors within
one second
> 5% errors within one
second or config error
Slave found but not
configured
Fig. 3 b: Legend to traffic light repre-
sentation. Telegram repeti-
tionsupto 1 % can beseen
in many applications as
non critical. Thereby there
are shown by the Analyser
green. See chapter 3.

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5.3.2 Overview with Hold Time
In the representation "Overview with Hold Time" the holding time is put back auto-
matically to that time indicated in the title. A slave only remains "yellow" or "red", if
it exhibited the error rate in the elapsed period. So the success and failure of chan-
ges in the net ca be verified quickly.
The Hold Time can be changed in the menu under "Options / Statistics" between
1 s and "infinite" in many stages. This setting is stored and taken over for the next
start of the analyser.
5.3.3 Advanced Statistics
By switching to the tab "Advanced Statistics" the user gets the number of repea-
ted/missingmessagesfor eachslaveas wellasthe number ofmaster calls toeach
slave.Itgives detailed informationfromtheoverview without the overallevaluation
by the traffic light representation.
Fig. 4: The "Advanced Statistics" shows quantitatively, how frequently repetitions of the
data calls were necessary.
The analyser shows exactly those slaves that are available in the net
and are taken up to communication. It cannot recognize slaves that
are contained in the configuration of the master, but already failed
before the connection of the analyser. These slaves appear in the
protected mode as "Configuration Error" in the master or in the con-
trol.
If the master is shifted during the measurement in the offline mode
all slaves are represented in "red" even if the data exchange could
function. In this manner the analyser displays the intervention in the
function of the network.

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The advanced statistics implements at the same time the function of the bus and
the analyser.
• The results of the analysers are transferred 1 time per second to the PC and dis-
played there in this rhythm.
• In a net which runs without repetitions, the number of master calls must be the
same for each standard slave (stop the representation briefly: Button "Hold",
continue with "Go" afterwards).
• If the statistics have been stopped, this is represented by a "Stop" indication in
the window.
• The number of the calls to occupied A- and B-slaves must be half as big as the
number of the calls from the standard slaves.
• If a slave is abruptly removed from the system, the master will try to contact him
exactly sixtimes. If the slave does not respond after the 6th time the master
wouldremovehimfrom thelistof active slaves.Thenumber of callswillrise only
if the slave regains communication with the master.
The advanced statistics displays additionally:
• The voltage at the place of the analyser,
• the cycle time,
• the measured time since the last deleting process,
• and the number of slave telegrams without master calls. These errors are very
rare: They can occur, if the analyser is in a position in the net at which it recog-
nizes slave telegrams but no master telegrams.
•The button "Hold" stops the counts in the display. However, it continues to run
in the background as long as no other operating mode is activated. Pressing the
button ("Go") again updates the display.
5.3.4 Consecutive Errors
The tab "Consecutive Errors" brings with the analysis of the multiple errors a fur-
ther, detailed representation of the error situation. It is differentiated between er-
rors that appear a single time and those for which more master calls are needed
before getting a valid response telegram ("failure class").
If only the narrow white field is indicated for a slave this means that no telegram
repetitions have occurred at run time. Up to 6 following broader fields indicate that
errors arose for the respective slave. This is depicted in such a way that you can
see the number of consecutive repetitions from 1 until 6 (increasing from olive
green until red). The largest consecutive error is represented. If an existing slave
is not represented by a white field, this slave is not in an actual data exchange.
Pointing with the mouse to this error representation you learn additionally how of-
ten that error has occurred (slave 19 in fig. 5). So the analyser makes a new im-
If the statistics have been stopped, this is represented by a "Stop"
indication in the window.

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portant valuation criterion available: Single repetitions (broad green field) are
relatively harmless and can be usually tolerated. Consecutive errors of the class 5
and6 (red fields)threatenthe availabilityofa facilityandshouldbeexamined more
exactly (see chapter 3).
Please note that the numerical data shown in fig. 5 are absolute numbers (in con-
trast to the "Overview"). They must be seen in relation to the number of the master
calls from the advanced statistics.
Fig. 5: The consecutive error evaluates the arisen repetitions graphically and numerically.
With the mouse pointer the distribution on 6 classes can be made visible: Slave 10
is failed once completly.

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5.3.5 Configuration
The tab "Configuration" shows for each slave the current configuration data stored
in the slave: I/O configuration, ID code, ID1 and ID2 code.
Fig. 6: Configuration of the used net: The slaves 4A, 4B, 5, 6, 8 and 10 are slaves according
to specification 2.1, slaves 5 and 6 are safety slaves, 8 and 10 are analog slaves.
These data serve for the identification of the different types of slave. It can be con-
cluded from the absence of the values for ID1 and ID2 that a slave according to
specification 2.0 is concerned. This means this is no slave according to specifica-
tion 2.1. If ID1 and ID2 are missing for all slaves, this can mean that the net is ope-
rated from a master according to specification 2.0. Older masters do not call ID1
and ID2.

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5.3.6 Online Statistics without Notebook
The online statistics is available without notebook also and therefore, it is suitable
for long-term control of the network.
If the analyser is started without communication with the notebook the 3 LEDs at
the analyser have a changed meaning: They indicate the accumulated errors in
the net in terms of the overview. As long as all slaves work perfectly the power-
LED lights "green"; if it should be warned for one or more slaves the second LED
shines "yellow". If the net is affected by more massive disturbances the test LED
lights "red". Operating without a notebook the LED-traffic light representation at
the analyser shows the status of the net.
The function of the analysers as a "listener" in the AS-Interface net-
work which takes all information out of the telegrams within the net-
work has an important consequence for the representation of the
configuration: It can be only indicated if it was queried at the analy-
ser's run time by the master as well. That happens with AS-Interface
whenever a new slave is taken up to the net. There are four conse-
quences for the user due to that:
• The configuration of the slaves is only indicated if the analyser ob-
servedarecordingphase. Examples: A systemstart(switchoffthe
master or the power supply of the network) after a temporary stop
of the communication ("offline phase" with connected voltage), or
with the resumption of failed slaves (for this slave). If the analyzer
is attached to a network which is already running it can recognize
the ID code only which is queried at regular intervals.
• If a slave drop out its configuration is not queried any longer. The
previous configuration remains indicated up to the next deletion.
Therefore, the drop out of the slave is only recognisable in the
overview or in the advanced statistics. Only with the reuptake of
the slave the configuration is completely called.
• By deleting (button"Clear All") in the overview tab, however, a
failed slave is removed from the tab "Configuration" also, to adapt
the representation to the current network situation.
• If a slave with a wrong configuration is attached after a drop its
wrong configuration is represented. If the master is here in the pro-
tected operating mode it does not take up this slave to data ex-
change. Therefore, no further increase of the data calls can be
recognised in the advanced statistics. The slave appears grey in
the overview. The master reports a configuration error.

AS-Interface Analyser Functions of the Analyser s
Subject to reasonable modifications due to technical advances. Printed in Germany
SIEMENS AG · Low-Voltage Controls · Phone [phone] · Fax [phone] · Internet: http://www.siemens.com/lowvoltage/technical-assistance
issue date 23.8.2006
20
5.4 Logging of the Online Statistics
The results of the online statistics (overview, configuration, advanced statistics
and consecutive errors, as well as minimum and maximum value of the voltage)
can be printed out or stored as standardized protocol. The protocol can be supple-
mented manually in the form by a description of facility including the indication of
the type of the used components manually. This describes the facility completely.
The data from the analyser are protected (fig. 7).
Four restrictions are to be considered with the work without a note-
book:
• Measured values remain stored only as long as the analyser is
supplied out of AS-Interface net. The notebook must be attached
to the analyser for further analysis.
• If the notebook is attached to the analyser first (for example to set-
up the analyser), but then removed, the data stored up to this point
is deleted (the filter adjustments remain however!).
• The indication "Measuring Time" is generated by the PC and not
by the analyser. Therefore, the "Measuring Time" can be indicated
only if the online statistics have been deleted at least one time via
the PC and have been started again in this way. Therefore, it con-
tinuesto run alsoif thecommunicationis temporarilyinterruptedby
the master or the user program but the voltage in the AS-Interface
net persists.
• The memory in the analyser is limited. In the continuous mode
without attached notebook data can be stored max. 14 days in the
statistic mode. The counter stops if it reached its maximum value.
With attached notebook this period is extended to approximately
1 year.