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PROFIBUS-Tester 3

1. Note Repeated or diagnostic frames according to the definition above are not registered by the illegal frame coun ter 3 4 Help functions 3 4 1 Master simulator The PBT3 can now also perform measurements on PROFIBUS plants which are still in the phase of con struction or start up even if the actual master station is not yet ready for operation This function can be es pecially useful if at first the correct realization of the bus cabling and of the installation of the individual sta tions is to be checked The master simulator can be operated at all baud rates and can determine all PROFIBUS stations of the plant and poll their ID numbers These can be used to provide the assignment to the device master file DMF of the manufacturer and to display the most important information While the master simulator is run ning the physical bus properties quality level disturbance free voltage range and edge steepness can be measured and thus the signal quality of the entire PROFIBUS installation can be checked Any stations which are not functioning and any duplicated address assignments can thus also be located The master simulator continuously checks the whole possible address range 0 through 126 and will also find stations which are only connected to the PROFIBUS later The master simulator must be operated exclusively on idle PROFIBUS plants i e no other master station must be operating To disconnect the master station if present and
2. PROFIBUS PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 1 Introduction 1 Introduction Thank you for purchasing PROFIBUS Tester 3 PBT3 You have acquired a tool which will support you in the start up monitoring and servicing maintenance of your PROFIBUS plant Thanks to its wide range of applications its high data transfer rates and above all its high tolerance against interference in the field of plant automation PROFIBUS has become well es tablished over the last few years Nonetheless particularly when starting up new plants though also during operation a wide diversity of problems may occur quickly resulting in undesirable and often expensive failures Errors in the application software of the plant are often assumed to be the causes Experience however has shown that the most of the problems occurring are attributable to the use of inappropriate cable types improper in Stallation of the bus cables or disturbed driver functions at individual PROFIBUS stations Typical error causes for a disturbed communication on the PROFIBUS are missing unpowered or surplus bus terminations overlong bus lines and or dead end branches wrong cable types predamaged defective bus drivers excessive transfer resistances due to aging corrosion cable routing in environments subject to strong interference Frames with a bad signal quality can only by detected via an analysis of the physical bus characteristics per mitting errors a
3. The General Terms and Conditions of Softing AG are to apply 34 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 8 Ordering Information 8 Ordering Informationen PROFIBUS Tester 3 Euro PROFIBUS Tester 3 complete package with mains power cable for Europe PB T3 PROFIBUS Tester 3 USA PROFIBUS Tester 3 complete package with mains power cable for USA PB T3 USA Table 5 Ordering information PROFIBUS Tester 3 35 9 Problem Recovery User Manual PROFIBUS Tester 3 9 Problem Recovery The following Chapter will help you if you have problems with your PROFIBUS Tester 3 This Chapter lists typical error sources and problem situations indicates possible causes and offers possible solutions If you encounter a problem with your PBT3 and or the application software which is not listed here or cannot be solved by the solution specified here please contact the manufacturer see Section 7 2 2 Support 9 1 Problems with the PBT3 device setup Problem Questions causes amp problem recovery PROFIBUS Tester 3 is not detected Questions Error in the Windows setup for the device PBT3 connected to PC and power supply Power On LED e Driver not found e Does the USB hardware of your PC function correctly e No PROFIBUS Tester 3 connected e Is PROFIBUS Tester 3 displayed under USB in the device manager e Is the correct operating system installed see Section 4 2 Installing the software How to solve this problem e Disc
4. bus status LED yellow Bus termination connected to both ends and powered bus status LED yellow e At least one station highlighted in the station list as to be measured e provides incorrect results Questions e PBT3 connected directly to a powered termination resistor on one of the two segment ends e Master station disconnected from bus via bus disconnector Possible causes e Different cable types with different wave resistances e There is an error in the physical bus characteristics and there are significant signal faults e The distance cannot be determined How to solve this problem for various stations e Cancel the topology scan e Highlight this these station s in the station list as Do not measure Error counter e Counts continuously Possible causes e An incorrect baud rate has been selected Baud rate scan e Duplicated addresses may have assigned e There is an error in the physical bus characteristics and there are significant signal faults Master simulator e Button is disabled grayed out Questions e PBT3 connected to PC and power supply Power On LED e PBT3 detected by application software status bar e PBT3 connected correctly to the PROFIBUS plant e All masters disconnected via bus disconnector bus status LED yellow or red Bus static and differential voltage gt 0 1 V bus status LED yellow or red e Bus termination connected to both ends and powered The
5. ter execution of the automatic baud rate detection For correct frame detection and thus error analysis it is imperative that the baud rate is set correctly otherwise all traffic on the bus is detected as an error 4 4 3 3 Bus cycle time The determination of the bus cycle time like the illegal frame counter represents an online bus monitoring function With the baud rate set correctly and the PBT3 connected to a running PROFIBUS plant the graph ics display the current the minimum and the maximum bus cycle time since the start of the measurement as well as the master address The number displayed to the left of the bar corresponds to the minimum meas ured time and the number to the right of the bar to the maximum measured time The master address from which the token is currently being measured is specified in brackets after the current bus cycle time During the operation of the PBT3 master simulator no bus cycle time is measured display No token As already described in detail in Section 3 3 2 Bus cycle time the bus cycle time is measured with a time resolution of 100 us and displayed as a value in microseconds A value less than 100 us results in lt 0 7 ms being displayed The longest time which can be measured is one second If no token has been received from the detected master for one second or if the PBT3 is connected to an idle plant No token is displayed In this state the PBT3 will automatically search for the f
6. u ee EEE EEE EEE BEER a E 1 2 a E E 3 2 1 Recelving inspection and les In aci cd da 3 2 2 Acclimalizing the device sredina A IE 3 2 3 GOnneelingithedeviee ass een 3 ZO DESIGN en ON CO ee nee 3 2 3 2 E e ei e LION een ia iria 4 23 0 PROFIBUS CONNCCUO ieee ae 4 2 3 4 Connecting the PROFIBUS Tester to a storage osclloscope kk krkn enn een 4 2 3 5 Gonnecting the device TO th EE 4 a a o En EE 4 3 Description of Functions and Measuring Princip ie css EU ELLE ELLE EEG 5 3 1 The most important measuring FUNCTIONS tek LEE LE nnnnnnnnnennnn E REESE REEL ERE LERET E REELLE 5 3 2 Measuring the physical bus charactertetce kk tt kk kk REE EEN ERE ERR E REE ERE RR E ERR ERE ERE ERR RL RER 5 3 2 1 General quality level incl glitch edge and level erors kk ken nr kk kr nenn 5 3 2 2 Disturbance free voltage range kk k tk kk ERE ER RER E SEER ERE ERE R REE E REE R ELSE NERE ERE E ERR R RE ERE 6 3 2 ee En 7 3 2 4 Signal waveform oscilloscope depl y kk kt kk REE nennen nnennnnnennnnnnnnnnnnnnennnn nennen 7 3 2 5 Measuring cycles and measuring Hme kt kk LEE LE ennnnnnnnnennnnnnnnnnnnnnennnnnennnn nennen 7 3 2 0 Triggering toa station ee rica ee er cn 8 3 3 Onlinesmonitoring MMC HONG ada 8 3301 BUS Salsa idos 8 A A A 8 SE Ee E de et 8 SE ICID tie Lee EE 9 S T A Ee te EE 9 3 42 SlaUON SCA geleed Eege 10 3 4 3 Detection of duplicated addressino oooonccnccccconconnccononcnnnononancnnnononancnnnonnnnncnnnnnnnnnrnnnnnnnnnennnnnnnas 10 SE EE
7. Disturbance free voltage range and edges e Disturbance free voltage range typ 0 4 5 V resolution 50 mV e Edge steepness falling and rising specified in 1 16th of the bit width e Minimum value and maximum value storage e Time stamp Oscilloscope display e Section of the signal waveform of a station e Two cursors for measuring the reflection with taking into account the signal propagation delay e Zoom six stages Frame display e Complete frame recording e Decoding to PROFIBUS DP hexadecimal decimal ASCII representation Statistics of measuring points Statistical evaluation of individual stations for all measuring points quality level dis turbance free voltage range and edges Automatic evaluation Limit value settings and measured value evaluation according to e critical quality level e critical disturbance free voltage range e critical edge Bus status e Permanent display of the bus status e Measuring of the differential voltage in the idle state of the bus Bus cycle time token rotation time e Permanent display of the token rotation time for the a master 0 1 1 000 ms e Minimum and maximum value storage e Address of the master detected Illegal frames Permanent display of detected frame errors protocol errors 0 gt 50 000 Test record Comprehensive configurable measuring and test record on DIN A4 e Letterhead with tester and customer contact data e Tabular representation of the measured values e
8. Maintenance The PROFIBUS Tester 3 is maintenance free Any repairs must always be entrusted to the manufacturer 7 2 Customer service 7 2 1 Shipping If you send the PROFIBUS Tester 3 for repair use only the original packaging or equivalent packaging Please give a brief error description and your telephone number in case we have any questions 7 2 2 Support If you have any technical questions please specify the serial number of your device its firmware and hard ware configuration version and the version of the PBT3 application software Please either send your ques tions either to your supplier or contact the PROFIBUS Tester 3 manufacturer hotline Supplier Softing AG Richard Reitzner Allee 6 D 85551 Haar Tel 49 89 456 56 0 Fax 49 89 456 56 399 W eb http www softing com E Mail info automation softing com 7 2 3 Warranty and limitation of liability We will assume a warranty of 24 months for the PROFIBUS Tester 3 which will commence from the date of delivery Any repairs required during this time which fall under the manufacturer s obligation to give a war ranty will be performed free of charge Any damage resulting from improper use of the device or from ex ceeding the specified technical parameters are not covered by the manufacturer s obligation to give a war ranty Softing AG will only be liable for consequential damage resulting from the use of the product in case of wilful intent or gross negligence
9. PROFIBUS Tester 3 List of Figures List of Figures Figs 1 Connections othe PBR NEE 3 Fig 2 Measuring principle for disturbance free voltage range and signal level ccccseeceeeeeeeeeeeeeeaeeeeeees 6 Fig 3 Structure of the PBT3 application software cccccconnncnnccccnonconccononnnnnononanonnnnnnnnncnnnnonnnnrnnnnonnnnnnnnnnnanenns 13 FIGAS ROODI Sea nee ee en N ea En See 14 FIG O Elements of ne message Dar nase ei 15 FIOLO H Dar ne ee ee ee ee ee erh 17 Fig 7 Elements of the Configure segment view cccccccssseccceeseeecseseeecceseeeseuseeecsaeceeseseesssaneeessaneeesseaes 18 FIS Measure All Stations VIEW Ein 22 Fig 9 Measure One Station view ea A IH a 24 Fig 10 Measure Logger view eeeneneeennnsnnnennennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnennnnnnnnnnnnnnnnnsnnnennn 26 FIGs DER ee Ende EE 28 le DMF e Fe Maldad dl 30 Flg TS PROFIBUS KEE 30 PROFIBUS Tester 3 VII Terms Definitions and Abbreviations Used in This Manual User Manual PROFIBUS Tester 3 Terms Definitions and Abbreviations Used in this Manual Baud rate Differential voltage Disturbance free voltage range DMF DSO Evaluation period Firmware FPGA Idle ID number Illegal frames Master Relevant frame Segment Slave Token VIII Data transfer rate 1 baud 1 bit s is the voltage between the RS485 signal lines A pin 8 and B pin 3 Up Us Ua The term dist
10. These enable the device to be connected both via SUB D 9 or M12 connector 2 3 4 Connecting the PROFIBUS Tester to a storage oscilloscope To display the signal quality of individual PROFIBUS stations on a DSO the PBT3 generates a station related trigger pulse Thus it is merely necessary to connect the BNC socket of the device to the external trigger in put of the oscilloscope The adapter board included in the scope of supply can be connected to the second SUB D 9 socket for sim ple sampling of the signals from the data lines A and B and the shield potential with the oscilloscope probes To sample the data transfer signal a differential probe is recommended signal line A against signal line B If two simple probes are used A against shield and B against shield the storage oscilloscope must provide mathematics functions to be able to generate the difference B minus A 2 3 5 Connecting the device to the PC The PBT3 is connected to a PC or notebook via the hot plug amp play capable USB port Before you connect the device to a PC or notebook it is recommended to install the supplied software as it includes the neces sary USB driver see Section 4 2 Installing the software 2 4 Prevention of accidents When operating this test device it is imperative to observe the general accident prevention regulations for the use of measuring instruments The device must only be used in dry rooms 4 PROFIBUS Tester 3 User Manual PRO
11. a u e Scan slave 4 4 E Not measured none be SERENE SEER ESSEN REESE IS used to select the Timeout none NW zZ displays a numerical station whose data VE Saarinen mare utente ow men eme ma am value of the high are to be displayed lighted measured N Evaluation opt value with a is used to evaluate the SES entire measurement not measured timeout below setpoint Fig 10 Measure Logger view After switching to the Measure Logger view View menu or toolbar you can control the measurement us ing the following icons or menu functions Measure menu Starts a continuous measurement shortcut F6 Starts a continuous logger measurement for all stations highlighted as to be measured The measurement can be ended via Stop End measurement shortcut F7 The current logger interval is measured thereafter the measurement is ended Cancel measurement shortcut F8 Clicking on this button ends the measurement immediately The current measurement data are displayed while the measurement is running These can already be evalu ated during the measurement to do so select and zoom the relevant diagram section Two progress bars are displayed during the measurement The upper progress bar indicates the log time al ready passed The lower progress bar displays which station of the segment is currently being measured If the time set for the logger interval is too short in case of station failure or in case
12. of a large number of sta tions it can occur that not all stations can be measured If the logger interval passes prematurely i e before all stations of a segment could be measured the new logger interval starts nevertheless with the first station again The logger interval should be at least long enough for the whole segment to be measured completely This time can be determined by experiment using the Measure All Stations view If it is not possible to determine all measured values for a station see Section 3 2 Measuring the physical bus characteristics during the set timeout time see Section 4 12 Settings Timeout is displayed In this case check the status of the station in question or increase the timeout time 26 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 8 3 Evaluation The start time and the accumulated logging time are displayed in the upper part of the view The measured values acquired up to this point can be evaluated even while the measurement is still running It is also possi ble to switch between different stations The left mouse button can be used to highlight measured values if necessary The time stamp is displayed for this measured value at the bottom of the screen All times indi cated in this view are based on the time set in the PC To maintain an overview with many measured values use the zoom out function Holding down the right mouse button and moving the mouse
13. pointer to the left or to the right will mark an area in blue which is then zoomed out when you release the mouse button In the zoomed out area you can navigate using the scroll bar Double clicking with the left mouse button will zoom in the displayed section so that you can see all measured values With the automatic evaluation activated a red line symbolizing the critical quality level is displayed A meas ured value that lies below this limit is displayed in yellow otherwise in green The text fields beneath Evalua tion provide an overview of the entire measurement and indicate how often a station could not be measured e g due to logger intervals being too short how often a timeout occurred not all measured values of a sta tion determined during the set timeout time and whether and how often the value has fallen below the critical quality level 4 9 Statistics of measuring points The Statistics of measuring points view serves for evaluation and comparison of the measured data of a station for all measuring points The Statistics menu item can be used to switch the measured values be tween quality level disturbance free voltage range and edges Use the list of stations to select the station from which you wish the measured values to be displayed The selected values measured at the individual measuring points are displayed in the diagram The order from the left to the right corresponds to the sorting order in the list o
14. section of the signal waveform for the measured station Use the Zoom function and buttons to enlarge or reduce the time section To navigate within a zoomed out section use the scrollbar Two cursors 1 and 2 which can be positioned freely on the display can be used to measure reflections To position the currently active cursor on the oscilloscope display press the left mouse button To switch between cursor 1 and 2 click on the toggle fields 1 or 2 The time difference between cursor 1 and 2 and the distance specification derived from the signal propagation delay are also displayed 4 8 Measure Logger view 4 8 1 How to use The logger measurement serves for a long term analysis of the bus system up to several days Thus cyclic impairments of the bus external EMC interference or a slowly worsening signal quality e g by liquid pene trating into a connector can be detected The quality levels of all stations highlighted in the station list as to be measured are measured once at defin able intervals This provides an overview of the status of the signal quality over time for each station A time stamp that refers to the beginning of a logger interval is recorded for each measured value The evaluation function if enabled provides an overview of the whole measurement lt displays spots where the measured values have not reached the setpoints and how many measurements could not be carried out not meas ured or Tim
15. that a PDF display program is installed on your sys TE tem e g Adobe Reader shortcut F1 2 Displays program and device information and can be used to update the PBT3 firmware and CET FPGA configuration 4 4 3 Message bar The message bar can be found directly beneath the toolbar and is always visible It informs you continuously on the current status of the bus and on continuously running monitoring functions Fig 5 provides a screen shot of the message bar and its elements Illegal frames Master simulator counts illegal for start up and frames troubleshooting without master station Level change Viv Illegal frames O 2 Lims 1 4 ms 2 1 4 ms LEC LEC A detected on the bus NX Bus status X Bus cycle time provides a quick displays the minimum overview of the current and maximum current bus status cycle times and the master address Fig 5 Elements of the message bar 4 4 3 1 Bus status The bus status display consists of multicolor LED graphics and a description text The LED changes its color depending on the bus status For a detailed description of the bus status measurement please refer to Sec tion 3 3 1 Bus status The following states can occur LED gray PROFIBUS Tester 3 not connected to the power supply and or to the PC LED yellow Bus static no level change detected on the bus during the measuring time of one second differential voltage between 0 8 and 1 4 V terminated corr
16. to the topological order of the stations The measuring data for quality level disturbance free voltage range edges oscilloscope display and logger are stored separately for each measuring point The statistics of the measuring points serves for evaluation of these measurement data and provides a profile of the signal quality along the whole bus cabling 5 Depending on the PROFIBUS connectors used the runtime extension can be different The global correction value of 0 8 m is an average value the real distance can deviate from the distance determined This deviation is multiplied with each terminator con nected between the PBT3 and the PROFIBUS station measured PROFIBUS Tester 3 11 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 1 System requirements To ensure the correct installation of the PBT3 application software your PC or notebook should meet the fol lowing minimum requirements and possess one of the operating systems listed below m Hardware Processor Intel Pentium Ill AMD Athlon or higher min 128 MB main memory Graphics card with 16 bit color depth 24 bit recommended Resolution 1 024x768 pixels or higher CD DVD ROM drive free USB port m Supported operating systems Microsoft Windows 98 Gold and Second Edition SE Microsoft Windows Millennium ME Microsoft Windows 2000 Service Packs 1 through 4 Microsoft Windo
17. 0 non condensing Degree of protection of the housing IP20 to EN 60529 Dimensions 35 mm x 109 mm x 143 mm Weight approx 320 g Table 4 Technical specifications cont d Warning The PBT3 is a Class A device Such devices can cause interference in residential areas In this case the plant operator can be requested to take appropriate measures and to bear the costs for such measures 32 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 6 Scope of Supply 6 Scope of Supply The scope of supply of the PROFIBUS Tester 3 comprises the following parts m PROFIBUS Tester PBT3 m PROFIBUS accessories SUB D adapter cable M12 adapter cable SUB D bus disconnector for disconnecting the master station keeping the powered terminators if any PROFIBUS M12 T piece PROFIBUS M12 terminating resistors Adapter board for simple connection of the oscilloscope probles m Power supply AC DC adapter e Type FW 7400 24 company FRIWO e Input voltage 100 240 V 50 Hz 60 Hz e Output direct voltage 24 V 500 mA e Connection cable 2 m long with extra low voltage connector to DIN 45323 Mains power cable 1 8 m e Country variants Europe Great Britain U S A Japan Australia m Product CD with USB driver and application software m Manual m USB cable 3 m m Suitcase PROFIBUS Tester 3 33 7 Maintenance and Customer Service User Manual PROFIBUS Tester 3 7 Maintenance and Customer Service 7 1
18. BUS Trigger connector soft 9 Ready Power suppl o connection to 10 38V the power adapter 06 0 15A eg Power On LED displays the operating voltage Fig 1 Connections of the PBT3 The two SUB D 9 sockets serve for connection to the PROFIBUS plant and for the sampling of the signal lines A and B via the adapter board for evaluation using a digital storage oscilloscope DSO The BNC socket can be connected to the DSO to use the station related trigger signal The connection to the PC or notebook is provided using a USB cable During operation the Ready LED in dicates that the data transfer is running on the connected PROFIBUS A trigger pulse at the BNC socket is signaled by the Trigger LED PROFIBUS Tester 3 3 2 Start up User Manual PROFIBUS Tester 3 2 3 2 Mans connection The desktop power adapter included in the scope of supply possesses a wide range input for connection to mains voltages from 100 V to 240 V 50 60 Hz the output is a d c voltage of 24 V The cable of the desktop power adapter is inserted into the PROFIBUS Tester 3 using the external voltage connector to DIN 45323 Once the mains power cable is inserted into the desk power adapter and the mains power plug into the mains socket outlet the PBT3 is ready for operation This is indicated by the Power On LED on the device 2 3 3 PROFIBUS connection Various adapter cables for connecting the PBT3 to a PROFIBUS plant are included in the scope of supply
19. FIBUS Tester 3 3 Description of Functions and Measuring Principle 3 Description of Functions and Measuring Principle 3 1 The most important measuring functions The PBT3 can measure and display the signal conditions of every PROFIBUS station Any problems with this station or with the bus cabling can be inferred from the results of the signal quality The PBT3 displays the fol lowing physical properties separately for each PROFIBUS station general quality level incl glitch edge and level error counters disturbance free voltage range minimum interference free differential voltage edge steepness section of the signal waveform oscilloscope display In addition to the physical measurements the PBT3 provides online monitoring functions i e the entire bus traffic is monitored and checked continuously This also includes the bus cycle time and a counter for illegal frames One of the most important innovations offered by the PBT3 is the master simulator allowing measuring and checking already during the phase of installation even if the master station e g PLC is not yet available The distances line lengths to the individual PROFIBUS stations as well as automatic sorting of the station and measuring point lists according to the distances can be derived from the topology determination The individual measuring functions are described in detail in the following subsections 3 2 Measuring the physical bus characteristics PROFIB
20. Graphical representation of the measured values Export function e Measuring data as a configurable CSV file e Graphical measured data representation as a bitmap bmp Firmware and FPGA configuration can be updated via USB Standards Equipment safety EN 60950 1 2003 03 EMC e Low frequency interference emission EN 61000 3 2 1995 A1 1998 A2 1998 A14 2000 e High frequency interference emission EN 55022 1998 e Interference immunity EN 55024 1998 Table 3 Technical specifications PROFIBUS Tester 3 31 5 Technical Specifications User Manual PROFIBUS Tester 3 Electrical parameters Supply voltage 11 36 V DC Current input 0 6 0 15 A Measuring of the differential voltage between typ 0 4 V 5 V A and B Potential difference between the connections lt 50 V DC or lt 71 V AC PROFIBUS USB and oscilloscope Trigger output for the oscilloscope BNC socket electrically isolated H pulse 10 bits wide level approx 5 V Mechanical parameters Supply voltage connection Extra low voltage socket to DIN 45323 PROFIBUS connection 2 x 9 pin SUB D socket PC connection Self powered device to USB Specification 1 1 additionally electrically isolated Trigger output for the oscilloscope BNC socket electrically isolated Housing Aluminum extruded prof 5 ile Temperature range e Operation C 40 C e Storage 20 C 60 C Humidity e Operation 20 80 non condensing e Storage 20 8
21. MOD OIOGY SCAN EE 10 3 5 Working WITT measuring DOING EE 11 A The PBT3 Application SON 12 2 1 System KEQUITCIMCIILS E 12 A 2 WASTAMING TNE SOMW E 12 4 General notes OM Op Ee WEE 13 4 3 Vn renee Or ee eee es eee eee ree 13 232 Dal SAU EE 13 4 4 Program AAA tad svelet a a a a 13 4AT Menu e EE 14 Fara TOODA eae sens tices O A E BL pes teehee ee 14 e Message e EE 15 AKASA TEE 15 PROFIBUS Tester 3 Il Table of Contents User Manual PROFIBUS Tester 3 EE Te Fe Bi gin 16 443 3 DUS CYCIC TMC EE 16 AAS ET TE e 17 JAA Stalls EE 17 AS IGOR fa Ure segment VIC W aces hasan A eanm dee eae 17 AS DE DOME EE 17 45 121 Bald rate SC aani asc beer Se eeler 18 4 5 1 2 Station scan and detection of duplicated addresemg rr 18 A5 19 TODO o AAA ee nen needs ies 18 4 5 2 Recording the online montormg ek kt kk LE REEL ERE TERRE LE ERE LE REESE nennen nnnnnnennennnnn 19 A A eee cee eee 19 4 5 4 Blallon IS Use a EEE 19 Eo ISU OT MEASUNNd POINTS 20 4 5 6 Topology OISDIAY aan ae einen 21 4 6 Measure All Stations VIEW an 21 4 6 1 1H0WIO USE ee ee een le re 21 4 6 2 Selung and measuring unse Zen ihn ei ah 21 Ee EE 22 4 7 Measure One Station MIER ees a ni EE See EES e 23 Er Rue el re US rsar nae ade A E E sarees 23 4 7 2 SOWING ANG Mea UN ti A FEE ERE ER SEEST SE TERESE BET SS HEE wards 23 A irn srtene re een 25 4 8 Measure Loggar EE 25 AB HOW OUS A AA O 25 4 82 Selina and Measuring eine a 25 AN We e E O E EE EA E er o
22. Segment overview w List of stations and distance table List of measuring points W Quality level and errors r r W Evaluation remarks Enter your remarks W Signatures Attachments W Graphics Topology w Graphics Quality Level w Graphics Statistics of Measuring Points Quality Level r t Data of selected measuring point tt Data of selected station Fig 11 Test record settings Cancel 4 11 Exporting measurement data 4 11 1 CSV file User Manual PROFIBUS Tester 3 The areas Address field customer data Con tact data of the tester and Signatures are in tended specifically for the service and mainte nance companies The customer address can be entered under Change customer data Access to the contact data of the tester service and maintenance company can be obtained under Change tester data There are various data areas which can only be printed if the measurement data are also present for the selected measuring point and or station If this is not the case the relevant toggle field is disabled Various graphics can be printed as an attach ment to the test record If graphics from different stations are needed it is also possible to print them completely one after the other without a test record Note For reasons of formatting the test record can only be printed in DIN A4 portrait format or larger In addition to the option to output the measuremen
23. Send and Request Data high Dist free volt range displays the measured disturbance free vol tage range and ist Oscilloscope and frame display Va riation Disturbance free voltage range J Edges cos NE Leg Ze Measured values in mum value eas value aximum value _ _ _ _ _ _ displays the edge the edge ge 4 30 Y 4 45 Y 4 50 Y displays the min steepness rising and 10 10 Auen AER 2 25 2005 vg max and current falling anf 13 22 47 939 13 22 48 225 13 22 44 959 values with a time stamp Fig 9 Measure One Station view After switching to the Measure One Station view View menu or toolbar you can control the measure ment using the following icons or menu functions Measure menu Starts a single measurement shortcut F5 The station to be measured is measured once ae Starts a continuous measurement shortcut F6 i The station to be measured is measured cyclically and the measurement results are displayed im mediately The measurement can be ended via Stop Cancel measurement shortcut F8 pic Clicking on this button ends the measurement immediately The current measurement data are displayed while the measurement is running Whenever a frame from this station has been detected the PBT3 issues a trigger pulse trigger LED is lit to its BNC socket With this trig ger signal the sent frame can be displayed isochronically on an oscilloscope as described
24. US uses a differential signal Le the actual data signal is transferred via two lines inverted to each other A and B The difference between the two generates the signal digitized by each PROFIBUS trans ceiver Any faults occurring there can endanger the correct detection of the bit stream The PBT3 provides an evaluation of the differential signal in the form of a general quality level the disturbance free voltage range and the edge steepness as well as by way of the oscilloscope display Contrary to the quality level which provides a general evaluation of the signal quality for the bus the determi nation of the disturbance free voltage range and of the edges as well as the oscilloscope display are useful aids for targeted fault finding 3 2 1 General quality level incl glitch edge and level errors The quality of the signal transmission is characterized by the level of the differential voltage between A and B the edge steepness overshoots and undershoots as well as level dips as caused by reflections All these features are summarized in the quality level value A reference voltage is changed iteratively by the PBT3 such that max 20 glitch edge and level errors can occur per 1 000 bits Subsequently the PBT3 activates error counters for glitch edge and level errors These error counters dis play the accumulated number of bit errors per 1 000 bits The following definitions apply PROFIBUS Tester 3 5 3 Description of Funct
25. adaptation on the bus earlier it is recommended to arrange the stations ac cording to their physical order on the bus Use the Auto sort function to sort the station list by the distances Otherwise the order can also be changed manually either using the and buttons or via drag amp drop 4 5 5 List of measuring points The measuring points list can be used to manage various measuring points for use of the measuring points please refer to Section 3 5 Working with measuring points Each measuring point possesses a unique in dex Z column a customized designation and provides a quick overview of the measurements already per formed To rename a measuring point either click on the Rename button double click on the cell use the context sensitive menu or the keyboard F2 key The Measuring point column contains the assignment of the measuring point to the address of a PROFIBUS station in the station list to which the PBT3 is connected for measuring This information can be used for automatic sorting by the order of the stations with the Auto sort option activated The manual sort ing of the measuring points is performed analogously to the sorting in the station list The columns QL quality level DFVR amp ED disturbance free voltage range and edges and LOG log ger display whether the appropriate measurement at the measuring point in question has already been per formed for all stations marked to be mea
26. all existing PROFIBUS stations starts immediately after activation and all measurements can be carried out A colored border around the current view symbolizes that the PBT3 master simulator is active As already described in Section 3 4 1 Master simulator the master simulator can only be run on an idle plant i e the master station must be disconnected from the bus as described in that section Only when the PBT3 no longer detects level changes bus status LED yellow red differential voltage gt 0 1 V can the mas ter simulator be activated 4 4 4 Status bar The status bar can be found at the bottom of the PBT3 application software window Fig 6 Press Fl for help T PROFIBUS Tester 3 Serial no PBT3 0006 059 MLM Fig 6 Status bar When the mouse pointer or the direction keys are moved through the menus the left area of the status bar describes the functions of the entries in the menu This area also displays appropriate descriptions regarding the effects of the buttons on the toolbar if you move the mouse pointer over these buttons The right hand area comprises the trigger status icon information regarding the PROFIBUS Tester 3 con nected and keyboard information The trigger icon is lit whenever a trigger pulse is initiated at the hardware trigger output If a PROFIBUS Tester 3 is connected and is in use its serial number is displayed 4 5 Configure segment view The Configure segment view is displayed directly afte
27. aluation When evaluating the measurement data you will be assisted by the PBT3 application software by way of an automatic evaluation of the results This function is activated deactivated via Automatic evaluation For the evaluation the following limit values must be set they will be stored in the current document m Critical quality level 500 5 000 critical measured value if not reached m Critical disturbance free voltage range 0 5 5 0 V critical measured value if not reached m Critical rising and falling edges 1 16 16 16 V critical measured value when exceeded With the evaluation function activated the measured values are evaluated on the basis of the set critical limit values and if necessary highlighted If there any stations which cannot be measured e g due to a logger interval which is too short or if a timeout occurs this information is also logged and displayed 4 5 4 Station list The station list contains all PROFIBUS stations determined using the Station scan function Each station can be assigned a customized designation and various settings can be made PROFIBUS Tester 3 19 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 The checkbox to the left of each station designation displays whether or not the appropriate station is in cluded in the measurements el to be measured or L not to be measured For switching either click with the mouse on the relevant icon use t
28. alues from the last continuous measurement and the appropriate time stamps 22 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software If you activate the All stations field under Selected station or if you deselect a bar click on a point outside the diagram the measured value display will switch from one station to a summary of all stations The totals of the values of all stations are displayed by the error counters The minimum maximum value specifies the smallest largest quality level for all stations The central column Average specifies the average value of all individual values measured With the automatic evaluation activated Configure segment view a red line highlighting the critical quality level is to be seen in the bar diagram This bar is yellow if the minimum value of a station is below this limit If the value is above the limit the bar is displayed in green 4 7 Measure One Station view 4 7 1 How to use This measurement serves to study one single station more specifically The view shows the disturbance free voltage range the worst rising and the worst falling edges a section of the signal waveform and the last de tected frame of the selected station Fig 9 shows a screenshot of this view This measurement simplifies the station related displaying and evaluation of the data sent along the PROFIBUS through the use of an oscilloscope since triggering is only performed exactly t
29. as been received The completion of this measurement is the prerequisite both for measuring the physical bus characteristics and for determining the topology The station scan can be performed both on a running and on an idle plant in this case with the PBT3 master simulator When using the PBT3 master simulator the ID numbers device codes of the PROFIBUS stations are also determined providing an assignment to the device master files 3 4 3 Detection of duplicated addressing The PBT3 can detect PROFIBUS addresses assigned twice or more This is done by detecting bus collisions This check for double addressing is performed during the station scan 3 4 4 Topology scan The topology scan function can determine the lengths of the lines between the individual PROFIBUS stations and thus their topological order This measurement must only be performed on an idle PROFIBUS plant i e without active master station to this end disconnect the master from the bus as described in Section 3 4 1 Master simulator The distance to the PROFIBUS master stations can therefore not be determined automatically To ensure that the topology determination of the PBT3 functions correctly all cables in the PROFIBUS plant must be connected correctly Bus terminators must be powered and connected on both bus ends It is im perative to connect the PBT3 directly to a powered terminator at one of the two bus ends Long dead end branches significant differences in t
30. ce The measure ment ends automatically once the signal has been measured completely Starts a continuous measurement shortcut F6 wi Each station marked in the station list as to be measured eh is measured cyclically The meas urement can be ended via Stop stop End measurement shortcut F7 The measurement is carried out up to the last station to be measured and then ended Sto Cancel measurement shortcut F8 Clicking on this button ends the measurement immediately While the measurement is running an arrow symbol is displayed beneath the station currently being meas ured If it is not possible to determine all measured values for a station see Section 3 2 Measuring the physi cal bus characteristics during the set timeout time see Section 4 12 Settings Timeout is displayed In this case check the status of the station in question or increase the timeout time 4 6 3 Evaluation The measured stations are displayed in the diagram as a bar If there are more than 32 stations you can navigate using the scrollbar Use this view to view the measured data for the station desired and to display a summary for all stations To select a station highlight the appropriate bar in the diagram lts designation and measured data are displayed in a separate table The measurement data record of a station consists of the last measured glitch edge and level error counters the quality level with its minimum and maximum v
31. e ment of the quality level of the disturbance free voltage range and of the edges may last for each station If it is not permissible to determine all meas ured values for a station within the set time this time must be increased 4 12 2 Tester contact data The PBT3 print function and the option of exporting the data to a CSV file can be used to display the contact data of the plant tester Use this tab to enter your contact data optional 4 13 DMF information Each PROFIBUS device manufacturer delivers a device master file DMF together with the product where technical data manufacturer information and device data are stored These data are required for configuring a PROFIBUS plant and for certifying the field device PROFIBUS Tester 3 29 4 The PBT3 Application Software DMF information Name Scan slave 4 ID number 0x7510 File name Imbmp7510 gsd Y Device name MEM F Manufacturer Murrelektronik Station type DP Slave HA release Vi 0 Si release 41 0 Revision WI Device supports FMS Freeze mode Sync mode Auto baudrate Fig 12 DMF information User Manual PROFIBUS Tester 3 The PBT3 application software can access already existing device master files and assign the information contained therein to the sta tions detected by the PBT3 master simulator The storage folder for these files can be set using the Tools Settings menu see Section 4 12 Settings Both language indep
32. e mee ar ee 27 AO SlalSticS OF measuring Po e EE 27 A AO PIN UNG el Te SU LOCO NG BEE 27 4 11 Exporting measurement e DEE 28 nn A e 28 A le ON 29 NS re E E E A E EA N E A AE DS nee 29 412A Generalselings ass IE 29 4 12 2 Tester COMACU Cal EE 29 413 DME MIO e M ee Benni 29 4 14 The PROFIBUS Tester Scan program 30 EUR Ee de ten di 31 EE ebe 33 7 Maintenance and Customer Service uua20220222nnnn000nonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nun 34 7 1 Maintenance ee ee ee ee 34 7 2 Eller een ent 34 V R BE er ne DEE 34 heL SUPPO GE 34 IV PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 Table of Contents 7 2 3 Waltanty and limitationorliabili EE 34 8 Ordering Nor Mal Manns A A A A ai 35 9 Problem Ee E 36 9 1 Problems with the PBT3 device seiup skt E Ek REEL ER REEL E ERR E REE ERE REESE REESE REESE ERR R REE ERE 36 9 2 Problems when Kante ET Le EE 36 10 Te 38 PROFIBUS Tester 3 V List of Tables User Manual PROFIBUS Tester 3 List of Tables Table 1 Description of the measuring cycles cooocccocccccncccnoccnnononnnononnnonannnonornnnnnnnnnnnnnonnnnnnnnnnnnnnrnnnennnnnanenonos 7 Table 2 Device types with their styling in the station list cooooccnccconnnncoconcnncconnonoconnnonononennnnonnnnnonanenoss 20 Table 3 Technieal speeilieat nssensssensei ee ea ateann 31 Table Kee e Eeler tee ee Le e EE 32 Table Ee dl informationen ee 35 VI PROFIBUS Tester 3 User Manual
33. ectly bus not running LED red Bus static no level change detected on the bus within the measuring time of one sec ond differential voltage less than 0 8 V or greater than 1 4 V LED green Level change detected on the bus PROFIBUS Tester 3 15 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 4 4 3 2 Illegal frames The counter for illegal frames represents an online bus monitoring function The PBT3 monitors each frame transmitted on the connected PROFIBUS and checks it for protocol errors for a detailed description of the il legal frames see Section 3 3 3 Illegal frames A maximum of 50 000 illegal frames is possible If this num ber is exceeded gt 50 000 is displayed Double click on the illegal frames to reset their values to zero The value of the illegal frame counter can be recorded in a PBT3 document like all measurement data The recording can be started and also be stopped by clicking with the left mouse button on the illegal frame icon or by activating the option Record online monitoring illegal frames in the Configure segment view Any in crementing of the illegal frame counter from the time of activation is thus saved in the document and can later be displayed and printed in the test log The REC icon displays whether or not the recording is currently run ning REC SREC It should be taken into account that the illegal frame counter is reset automatically after each change and af
34. endent device master files extension gsd and country specific device master files ex tension gs are supported The dialog box with the DMF information can be hidden unhidden using the View Display DMF information menu F11 key Fig 12 shows a screenshot of this view Once a station with determined ID number is selected in the main window of the PBT3 application software e g in the station list and if the relevant device master file exists the DMF information window will display the names of both the device and the manufacturer the version information and supported functions If several device master files exist for one ID number these can be selected under File name 4 14 The PROFIBUS Tester Scan program Name PROFIBUS Tester 3 Serial No PBT3 0006 Open PBT3 Application Software Open PBT3 User Manual Close PROFIBUS Tester Scan Close this Menu TAE PASOFIGUS Teater Fig 13 PROFIBUS Tester Scan Note The PROFIBUS Tester Scan program provides a quick over view of the type and the serial number of the PROFIBUS Tester connected The program is entered in the Autostart folder and is called automatically with each program start A symbolic icon amp is displayed in the information area of the task bar for each PROFIBUS tester detected If you click on this icon the menu shown in Fig 13 is opened Use this menu to call the PBT3 appli cation software and the Manual directly If you do no
35. eout Fig 10 shows a screenshot of this view 4 8 2 Setting and measuring The requirements for this measurement are m The PBT3 must be connected both to a PC and to the PROFIBUS plant bus status LED green yellow m The correct baud rate must be selected m The master simulator must be activated if necessary only required when performing a measurement on an idle plant bus status LED yellow red differential voltage gt 0 1 V m The correct measuring point must be selected m Atleast one station must exist in the station list and must be marked as to be measured m The required logger interval must be selected PROFIBUS Tester 3 25 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 Logger interval is used to set the frequency of the measurements M e a S u ri n g pol nt Measuring point designation Address Logger interval Starting time 4 6 2005 14 34 25 P rog ress ee gt o Measuring point1 B 10s v Logging period 0 hours 8 minutes 0 seconds d isplays th e to tal IS u sed to se ect th e Quality lewel Musteranlage Scan slave 4 H measuring point AL un ns un u na we ne ums nn ES time and the time E of the current SE OO hr ST DEE AE SEKT ST BEE hee Be measurement Time axis 3000 ges ee ge E A a E ee ec r AG a a display of the course 2000 E of quality level over TEE d APA the logging time E 0 aS Duration Stati O n Station designation Address Evaluation Meas TOL M e as u re d V
36. ers e Line short circuits e Non conforming baud rate used How to solve this problem e Correct the baud rate manually or try a different baud rate e Button is disabled grayed out Questions e PBT3 connected to PC and power supply Power On LED e PBT3 detected by application software status bar e PBT3 connected correctly to the PROFIBUS plant e Level change present on the bus bus status LED green How to solve this problem e Provide for transmission activity on the PROFIBUS line e g start the master simula tor 36 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 9 Problem Recovery Problem Questions causes amp problem recovery Station scan e Stations missing Possible causes e Duplicated addresses may have assigned e The master simulator is being used and the baud rate has just been changed The stations have not yet been synchronized to the new baud rate The appropriate station does not support automatic baud rate change The appropriate station does not support the required baud rate The ID numbers are missing How to solve this problem e Use the master simulator Topology scan e Button is disabled grayed out Questions e PBT3 connected to PC and power supply Power On LED e PBT3 detected by application software status bar e PBT3 connected correctly to the PROFIBUS plant e Master station disconnected from bus via bus disconnector e Bus static and differential voltage ok
37. f measuring points To obtain an appro priate display of the measured value profile along the bus cabling this list of measuring points should always be sorted by the topological order of the connection points 4 10 Printing a test record After all measurements have been completed a comprehensive test record can be printed via the PBT3 ap plication software to document the correct functioning of a PROFIBUS plant or to show detected problems The test record consists of individual data areas Each time before printing or displaying the print preview you can adapt the compilation of the individual data areas for a selected measuring point and the appropriate station according to your requirements To this end the dialog box shown in Fig 11 is displayed each time when you call a print preview or request printing so that you can adapt the test record accordingly Use the Print options menu item to select the data areas to be displayed or omitted in the test record All settings made in this dialog box are saved in the document currently active PROFIBUS Tester 3 27 4 The PBT3 Application Software Print test record settings Measuring point designation Address Station designation Address Bus end Printing options Scan slave 5 5 Please select the areas you wish to be included in the test record Change Customer Data Change Tester Data w Address Field with customer data w Contact data of the tester w
38. he cable types incorrect or missing bus terminations as well as addi tional PROFIBUS connectors which are not connected influence the distance calculation and can lead to in correct results 4 In accordance with IEC 61158 2 each PROFIBUS connector should contain four inductivities in the signal lines A and B to com pensate the connection capacity of a PROFIBUS station A PROFIBUS connector which is not connected will not have this capac ity and its inductivities will lead to undesired signal reflections 10 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 3 Description of Functions and Measuring Principle The determined distances are specified in meters The calculation by the PBT3 will take into account the run time extending properties of the PROFIBUS connectors by automatically deducting 0 8 m from the deter mined distance for each station detected gt The distances of PROFIBUS stations connected after a repeater cannot be determined In this case the line length between the PBT3 and the repeater is measured 3 5 Working with measuring points For start up and fault finding on a PROFIBUS plant it is always recommended to perform measurements at different points of the bus cabling at least however on both bus ends To be able to compare these meas urement data conveniently the PBT3 application software permits the management of different measuring points Measuring points can be created named and sorted individually according
39. he context sensitive menu right mouse button or the key board spacebar To rename a station either click on the Rename button double click on the cell use the context sensitive menu or the keyboard F2 key The text of each station is formatted differently depending on the device type detected see Table 2 Slave passive station Station only sends response frames Master active station Station only sends request frames bold Table 2 Device types with their styling in the station list The ID number is available automatically if the Station scan was carried out with the PBT3 master simulator activated but it can also be entered manually either by clicking on the ID number button by double clicking on the cell via the context sensitive menu or using the keyboard F3 key The ID number is used for assign ment to the device master file DMF of the manufacturer If the relevant file exists in the set DMF archive folder see Section 4 12 Settings any additional information on the station is displayed in a separate win dow menu View Display DMF information or F11 key The absolute distances determined between the appropriate station and the PBT3 via the topology scan can be found in the column Dist This value can also be entered manually either by clicking on the Distance button by double clicking on the cell via the context sensitive menu or using the keyboard F4 key To be able to detect any faulty
40. ic form and can be called both via the help function Ae and by pressing the F1 key It contains a detailed description both of the measurements and of the program opera tion 4 3 2 Data saving All measurement protocol and export data set using the PBT3 application software and determined via the PBT3 device at the PROFIBUS plant can be stored in a document with the file extension pbt The docu ment can be opened either by double clicking on the file in the Windows6 Explorer or by dragging the file to the program drag amp drop 4 4 Program structure The graphical user interface of the PBT3 application software is divided into various areas Fig 3 Title bar displays the name of the document currently opened and the active view Men u bar i Sample project pbt prones Tester 3 Application Software Configure segment Fie Measuring View Tools Help rovides access to sa he Gl Be e Toolbar provides access to Sda la y R ES 7 a printing an GE provides quick measuring functions aaa ea the hE 1A Illegal frames O 2 1 1 ms 1 3 ms 2 1 6 ms t th t access to the MOS Segment Baud Rate Scan Stations Measuring points m DO rta nt fu n cti O n S Designation Sample plant Station Scan ID number Distance V Auto sortiv Baud rate 1 5 Mbit s X Designation Address ID no M essay e ba r Record online monitoring zeg Master 2 2 5 AS x M Scan slave x provides the bus Bus cycle time z j2 Ejl
41. ims j 14ms 2 1 7ms CB SC dee i F Illegal frames 0 Scan slave 4 0x7510 status continuously evasion F scan slave 6 0x3101 Y SE 4 M Scan Slave 3 0x1742 IV Automatic evaluation Crit quality level Crit disturbance free voltage range 2 5 Y H wee Crit edge rising and falling 7 16 Vi ews WI n d OW da Overall ine length SZ Se displays the confi r i guration and mea suring views Scan Slave 7 0x3101 Status bar displays general notes and the PBT3 device status Fig 3 Structure of the PBT3 application software Press F1 for help PROFIBUS Tester 3 Serial no PBT3 0006 e NUM PROFIBUS Tester 3 13 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 4 4 1 Menu bar The menu bar contains the main menus File Measure View Tools and Use the File menu to open save export and print PBT3 documents The Measure menu provides the functions required to con trol measuring processes Start and Stop Use the View menu to switch between the individual measur ing views and to hide unhide the DMF information window The Settings dialog can be found in the Jools menu it can be used to configure the PBT3 application software and the PBT3 itself The last menu item contains the electronic manual as well as program and device information 4 4 2 Toolbar For user friendly operation and switching between the measuring tasks a toolbar has been implemented
42. in the PBT3 application software this can be found in the upper part of the program window Fig 4 The tool bar provides quick access to the most important menu functions sd Sa Sle Fig 4 Toolbar Bi RODE Opens a new document shortcut Ctrl N Opens an existing PBT3 document shortcut Ctrl O Saves the active PBT3 document either with its current name or if the document has not EK been given a name with a new name shortcut Ctrl S Shows how the active document will appear when printed Print Preview SS Prints the active document shortcut Ctrl P Switches to the view Configure segment shortcut Alt 1 Switches to the view Measure All Stations shortcut Alt 2 Switches to the view Measure One Station shortcut Alt 3 Switches to the view Measure Logger shortcut Alt 4 Switches to the view Measuring point statistics shortcut Alt 5 R Starts a single measurement shortcut F5 14 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software vil Bo Starts a continuous measurement shortcut F6 Green Ends the measuring process after completion of a single measurement shortcut F7 Red Ends the measuring process immediately shortcut F8 res Opens a dialog box where you can select the PROFIBUS Tester 3 to be used if more than one PROFIBUS Tester 3 is connected to your PC F Opens the electronic manual Make sure
43. in the Sections 2 3 4 Connecting the PROFIBUS Tester to a storage oscilloscope and 3 2 6 Triggering to a station ad dress If it is not possible to determine all measured values for a station see Section 3 2 Measuring the physical bus characteristics during the set timeout time see Section 4 12 Settings Timeout is displayed In this case check the status of the station in question or increase the timeout time 24 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 7 3 Evaluation During and after the measurement this view displays the current maximum and minimum measured values of the disturbance free voltage range with the appropriate time stamps The slowest front and rear edges are displayed in multiples of 1 16 of the bit width With the automatic evaluation activated Configure segment view the measuring instrument will indicate the critical disturbance free voltage range with a red arrow symbol The relevant numerical value is displayed in yellow symbolizing that the smallest measured disturbance free voltage range lies below the set limit value If the critical edge value is exceeded the edge diagram is displayed in yellow If the value is below the limit the edge diagram is displayed in green It is possible to switch between the oscilloscope and the frame display both during and after the measure ment The frame display displays the last detected frame The oscilloscope displays a
44. ing on the bus and enters them in the station list In addition this function carries out a check for duplicated addresses This function can also be used when the PBT3 master simulator is used on an idle plant In this case the PBT3 will determine the device codes ID numbers of the slaves permitting assignment to the DMF files 4 5 1 3 Topology scan The topology scan can be used on an idle PROFIBUS plant without active master station to determine the line lengths between the individual PROFIBUS stations and their topological order with reference to the PBT3 18 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software connection point To ensure that this function works correctly observe the supplementary conditions de scribed in the Section 3 4 4 Topology scan After all stations connected to the bus have been included in the station list using the master simulator and the Station scan function you can click on the Topology scan button to start the topology determination function A dialog box opens to display the progress of the measurement The distances for all stations in cluded in the station list and marked as to be measured elt are now determined The time required to de termine the topology depends on the baud rate you are using and the bus configuration Especially for plants with a large number of stations and a high baud rate the topology determination can take several minutes Once the measu
45. ions and Measuring Principle User Manual PROFIBUS Tester 3 Glitch error Bits for which the voltage has been fallen below the reference voltage for at least 1 8th of the bit time and has then recovered Edge errors Bits for which the edge rise or fall time is more than 3 8th of the bit time Level errors Bits for which the value of the reference voltage is not reached Sporadically occurring faults at the frames to be measured are indicated via the error counters for glitch edge and level Any permanent faults however will reduce the quality level Note The value of the quality level is equivalent to the minimum signal level of the PROFIBUS Tester 2 PBT2 3 2 2 Disturbance free voltage range The term disturbance free voltage range is used to denote the interference free range of the differential volt age which is determined over a certain part of each bit of the frames for the station to be measured relevant frames This part is called evaluation period gt i O I I I I amp I I 5 I I gt I I S 2 Disturbance free signal level YE voltage range 7 O Time 10 16th of the bit width Evaluation period Fig 2 Measuring principle for disturbance free voltage range and signal level Each bit is sampled 16 times The disturbance free voltage range is evaluated over 10 16th of the bit width 62 5 of the evaluation period At both the beginning and e
46. irst available token of a master and after detection will start the determination of the minimum and maximum bus cycle times Double clicking with the mouse on the bus cycle time graphics will perform a reset resetting all memories Reset is displayed Subsequently the PBT3 will wait again for the first available token from a master The data of the bus cycle time detection can also be recorded in a PBT3 document Clicking with the left mouse button on the bus cycle time icon or activating the Record bus cycle time option in the Configure segment view will start recording of the measurement data The REC icon displays whether or not the re cording is currently running REC REC It should be taken into account that analogously to the illegal frame counter changing the baud rate and execution of the automatic baud rate detection results in resetting of the bus cycle time The correct detection of a token for displaying the bus cycle time requires the baud rate to be set correctly 7 With multi master systems it is possible that after a reset of the bus cycle time a different master address is determined and dis played 16 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 4 3 4 Master simulator The PBT3 master simulator serves for commissioning and measuring on idle PROFIBUS plants it can be ac tivated deactivated by clicking on the master simulator button The communication with
47. lator must be activated if necessary only required when performing a measurement on an idle plant bus status LED yellow red differential voltage gt 0 1 V m The correct measuring point must be selected m At least one station must exist in the station list and must be marked as to be measured PROFIBUS Tester 3 21 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 M e as u ri n g p ol nt Measuring point designation Address E is used to select the r i Quality level Sample plant Scan slave 5 measuring point em 4000 Bar diagramm 3000 Ki oo _ gt displays the measured om quality level for each HELE station l E aA a e CA All station s Selected station Errors per 1 000 bits Minimum value Meas value Maximum value Measured values designation and mea 7 a 0 Quaitylevel 4700 4700 4850 displays the min sured values of the i q gun Aiens 4 1 2005 aus max and current selected station or Level 0 15 10 16 664 15 10 16 664 15 10 13 14 values with a all stations time stamp Error counter Glitch edge and level errors per 1 000 bits Fig 8 Measure All Stations view After switching to the Measure All Stations view View menu or toolbar you can control the measurement using the following icons or menu functions Measure menu Starts a single measurement shortcut F5 Each station marked in the station list as to be measured bk is measured on
48. le when the token is again passed on by the same master The objective when configuring any PROFIBUS plant is to keep the bus cycle time and thus the refresh inter val of the process data as short as possible Not only configuration problems but also diagnostic and alarm messages as well as poor transmission properties resulting in sporadic frame repetitions can extend the bus cycle time Problems of this kind can be avoided by measuring the cycle time at regular intervals and saving the recorded minimum and maximum times For this measurement to function correctly it is merely necessary to set the baud rate of the PROFIBUS seg ment via the PBT3 application software and to connect the PBT3 to the plant Subsequenily the device will determine the address of a master automatically and starts measuring the bus cycle time Each time the to ken is passed on the time measurement is stopped and restarted at the same time The resolution of the time measurement is approx 100 us The longest bus cycle time which can be detected is one second 3 3 3 Illegal frames The counter for illegal frames is like the bus cycle time a real time monitoring function The background to this measurement is to be able to perform a protocol check of all frames transferred on the bus If a logic er ror is found in a frame this counter is incremented by one 1 except in a short acknowledgment frame there the destination address of the immediately previous f
49. measured value of 0 16th means that the level change takes place in less than 1 16th of the bit width 3 2 4 Signal waveform oscilloscope display To evaluate signal transitions and to measure reflections the PBT3 records a characteristic section of the signal waveform of a relevant frame and displays it on the oscilloscope of the PBT3 application software Based on the signal waveform various cable problems such as dead end branches transient signal dips significantly different cable types long reflections level dips short circuits etc can be revealed The triggering point for recording lies at 50 of the recording depth and is always to be found on the first ris ing edge of a relevant frame Irrespective of the selected baud rate the signals are always recorded at a sampling rate of 192 MSample s and cover a time range of 12 5 us with 2 400 points time resolution ap prox 5 2 ns The oscilloscope display facilitates the evaluation of signal dips reflections Based on the height of the dip it is possible to infer the changes in the characteristic wave resistance of the cable The length and the position of the reflections indicate the distance to the point of interference Two cursors have been implemented in the oscilloscope display of the PBT3 application software for simple measurement of the reflection lengths and thus distances The signal runtime is converted into a distance specification automatically A mean runtime constan
50. measurements All stations One station and Logger e cannot be started Questions e PBT3 connected to PC and power supply Power On LED e PBT3 detected by application software status bar e PBT3 connected correctly to the PROFIBUS plant e At least one station highlighted in the station list as to be measured Additionally for the One station measurement e One station selected How to solve this problem e Provide for transmission activity on the PROFIBUS line e g start the master simula tor Printing and exporting e The relevant data field is disabled How to solve this problem e carry out the required measurement for the selected measuring point and the rele vant station PROFIBUS Tester 3 37 10 Notes 10 Notes 38 User Manual PROFIBUS Tester 3 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 10 Notes PROFIBUS Tester 3 39
51. nd of each bit 3 16th of the bit width are ex cluded from the determination of the disturbance free voltage range see Fig 2 Signal overshoot and sett ling processes are excluded from the interference voltage measurement as long as they lie outside the evaluation period A voltage drop of less than 1 16th of the bit time during the evaluation period cannot be de tected reliably and thus also has no influence on the determination of the disturbance free voltage range 6 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 3 Description of Functions and Measuring Principle 3 2 3 Edge steepness To fully evaluate the transmission properties of the bus cabling and of the individual PROFIBUS stations the edges must also be studied in addition to the disturbance free voltage range shallow edges can also prevent the correct decoding of the transmission signal The PBT3 determines the edge steepness separately for rising and falling edges To this end two thresholds are set at 10 and 90 of the signal level determined differential voltage determined at the bit center see Fig 2 The time required for the differential signal to change between these voltage threshold values is measured both for falling and rising edges The rise and fall times are determined with a resolution of 1 16th of the baud rate used and displayed as a value between 0 16th and 16 16th This value always specifies the slowest rising and falling edge of the relevant frames A
52. nd their causes to be detected specifically Early and regular checks beginning already at Start up help locate fault sources before they lead to failures Such checks increase the signal quality the bus works reliably and is more resistant in terms of EMC The PROFIBUS Tester 3 will help you efficiently in checking your PROFIBUS system and in finding faults and their causes To this end it provides the following scope of functions passive bus coupling during operation automatic detection of the baud rate used automatic determination of all stations in the plant LiveList bus station and measuring point related display of the signal conditions general quality level incl glitch edge and level errors disturbance free voltage range and edges oscilloscope display at least one rising edge m long term monitoring logger for all stations m continuous display and recording of the current minimum and maximum bus cycle time m real time monitoring of the whole data traffic and checking for frame errors PROFIBUS Tester 3 1 1 Introduction User Manual PROFIBUS Tester 3 m integrated master simulator for checking plants even without master start up phase m determination of the order and distances line lengths of the individual stations m real time capable hardware trigger output for station related analysis via DSO The PBT3 possesses a USB port for connection to a PC or notebook The clearly structured PC software pr
53. nline monitoring Gan Crew GE specifies the mea is used for recording N Record onine monitoring Station ie ren suring points with Bus cycle time Zl 2 Eltims 14ms 8 1 7ms i i heir ianation the bus cycle time e list of measuring points their designations and illegal frames Evaluation and locations and Iw Automatic evaluation Crit quality level 2500 E provides an over Crit disturbance free voltage range 2 5 Y i Crit edge rising and falling 7 16 VIEW of the mea Evaluation S is used to set the Overall line length 30 m suring data critical quality level Scan slave 8 disturbance free voltage range and the critical edge r D Scan Master 2 im 1 v Xx Topology display displays the stations and the measuring points with their distances Fig 7 Elements of the Configure segment view 4 5 1 1 Baud rate scan The PBT3 can determine the baud rate for a segment automatically provided that the PROFIBUS plant func tions correctly data traffic existing bus status LED green Click on Baud rate scan a dialog box is opened displaying the baud rate detected This can be confirmed and accepted by clicking on the Ok but ton Note Changing the baud rate will reset the illegal frame counter and the bus cycle time display to 0 4 5 1 2 Station scan and detection of duplicated addressing The station scan automatically determines all stations transmitt
54. nt measuring item is disabled 4 12 Settings The Settings command in the Tools menu opens a dialog box where you can adapt the program to your specific requirements Here you can influence the behavior of the application software and of the PBT3 de vice The settings in this dialog box will not be saved in the current document but instead in the Windows registry for the program 4 12 1 General settings Display tool tips When you move the mouse pointer over a window element e g a button and stop over it for a short time the program will display tool tips Display warning before If you select this option a message is displayed warning you that the data of overwriting measurement previous measurements will be overwritten when you start a new individual con data tinuous measurement a station scan or a topology scan Display all messages In certain situations dialogs with tips and questions are displayed by the PBT3 application software If the corresponding box in one of these dialogs is ticked such messages can be skipped in the future e g Do not display this message again If you wish this message to be displayed again reactivate the option here DMF storage folder This path specifies the storage folder that contains the device master files DMF for displaying station information see Section 4 13 DMF information Measuring cycle timeout The time entered in this field in seconds determines how long the measur
55. o vides for straightforward operation of the device the performing and evaluation of measurements and sup port in locating error causes Thanks to the integrated update option you are already today well prepared for future extensions 2 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 2 Start up 2 Start up 2 1 Receiving inspection and testing Carefully unpack the device immediately after receipt and check the consignment If transport damage is sus pected inform the delivery agent within 72 hours and keep the packaging for inspection The device must only be transported in its original or equivalent packaging Check the completeness of the consignment against Chapter 6 Scope of Supply 2 2 Acclimatizing the device Before turning on the device make sure that it has reached the same temperature as the room This should take at most 60 minutes 2 3 Connecting the device 2 3 1 Design Fig 1 shows all connections of the PBT3 The power supply is provided by the supplied plug in power adap ter 24 V via an extra low voltage socket to DIN 45323 The inner contact is the plus pole The Power On LED lights when the correct operating voltage is provided BNC socket trigger signal for the storage SUB D 9 socket for the oscilloscope PROFIBUS connector PROFIBUS em SE socket Trigger connection to a 3 TESTER Ap PC or notebook E iF z nee E Trigger LED SUB D 9 E q Ready LED socket for the PROFI
56. o one station ad dress The Sections 2 3 4 Connecting the PROFIBUS Tester to a storage oscilloscope and 3 2 6 Trigger ing to a station address describe in detail how the PBT3 can be used in conjunction with an oscilloscope 4 7 2 Setting and measuring The requirements for this measurement are m The PBT3 must be connected both to a PC and to the PROFIBUS plant bus status LED green yellow m The correct baud rate must be selected m The master simulator must be activated if necessary only required when performing a measurement on an idle plant bus status LED yellow red differential voltage gt 0 1 V m The correct measuring point must be selected m Atleast one station must exist in the station list and must be marked as to be measured PROFIBUS Tester 3 23 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 Oscilloscope display section of the signal N wave with cursor for reflection measurement J spe LEN LER spe ke FCS pm 0x68 Ox05 0x05 0x68 Ox05 0x02 a 0x70 0x16 A ow Function code Frame type W Request O Response Request counter W Fcy Evaluate FCB O FCB Alternating bit Station is used to select the station to be measured E Ss We M e a S u ri n g po i nt Measuring point designation Address Station designation Address Oscilloscope F r a m e E PLC 7 y C Frame is used to select the displays the last measuring point detected frame Extension O ExT Code number 13
57. onnect the PROFIBUS Tester 3 from PC and from the mains e If necessary uninstall the PBT3 application software e g via the Control Panel Install the PBT3 application software see Section 4 2 Installing the software e Reboot your PC e Connect the PROFIBUS Tester 3 AC DC adapter and your PC to the mains USB cable e Windows should now detect a new device and install the appropriate drivers e PBT3 is detected by the device manager How to solve this problem and by PBT Scan but the application e Open the Select device dialog under Tools select PROFIBUS Tester 3 and software displays No PROFIBUS choose one of the PBT3s from the list Tester 3 connected 9 2 Problems when measuring Problem Questions causes 4 problem recovery Baud rate scan e Button is disabled grayed out Questions e PBT3 connected to PC and power supply Power On LED e PBT3 detected by application software status bar e PBT3 connected correctly to the PROFIBUS plant e Level change present on the bus bus status LED green Master simulator deactivated How to solve this problem e Provide for transmission activity on the PROFIBUS line e g start the master e Set the baud rate manually and use the PBT3 master simulator e No baud rate found Possible causes e Duplicated addresses may have assigned e Incorrect bus installation large reflections e Excessive interference affecting the lines e Defective PROFIBUS driv
58. r starting the PBT3 application software Here you can make the basic settings for measuring Fig 7 shows a screenshot 4 5 1 Segment If your PROFIBUS plant consists of several segments bus segments separated by a repeater you can op tionally enter a name for the segment max 30 characters in the field Designation to permit differentiation The data transfer rate you wish to use for the PROFIBUS segment to be measured can be set under Baud rate You can also use the Baud rate scan function to let the PBT3 determine the baud rate automatically PROFIBUS Tester 3 17 4 The PBT3 Application Software User Manual PROFIBUS Tester 3 Station list displays the stations connected to the bus with their designa tions addresses ID numbers and absolute distances to the PBT3 Stations Measuring points New Delete Rename Loc IV Auto sort DO Designation Loc QL DY amp amp ED LOG 1 Measuring point 1 3 x x 2 PLC x 3 Bus end x x Stations Measuring points Rename ID number Distance E E Address ID no Dist IV Auto sort Designation Scan master 2 2 0m 0x3101 im 0x0093 5m Scan slave 4 0x7510 8m Scan slave 3 3 0x1742 17m Scan slave 7 7 0x3101 25m Segment 8 Scan slave 5 5 4 can be used to enter a description of the segment provides the menu items Baud rate scan Station scan and p gy Segment Baud Rate Scan su ring points H H H Designation ample plan Station Scan O
59. rame is stored and as signed 2 If you have connected the PBT3 to a PROFIBUS plant with several master stations the PBT3 will use the master address first de tected on the bus for measuring the bus cycle time 8 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 3 Description of Functions and Measuring Principle s a rule the counter of this display should always show 0 If on the other hand errors occur occasionally or even frequently this is due less to non conforming PROFIBUS circuits of the PROFIBUS stations but rather to problems with the physical bus characteristics and the resulting transmission errors But station ad dresses assigned twice duplicate addressing can also cause errors of this kind The illegal frame counter of the PBT3 counts max 50 000 illegal frames A frame is detected as illegal if at least one of the following protocol errors has occurred unknown start delimiter no SD1 SD2 SD3 SD4 or short acknowledgment incorrect checksum FCS start parity or stop bit error invalid end delimiter invalid repeated SD2 in SD2 frames only invalid length information LE unequal to LEr in SD2 frames only The error detection will only function correctly if the correct baud rate has been set for the PROFIBUS seg ments via the PBT3 application software If this is not the case the frame detection will not function correctly Consequently any data transfer on the bus will increment the illegal frame counter
60. ready for operation from the bus for use of the PBT3 master simulator the PBT3 accessories include a so called bus disconnector This is simply in serted between the master station and its SUB D 9 bus connector When doing so however it should be ob 3 The PBT3 detects a frame as illegal if it does not comply with the protocol definition to IEC 61158 3 These illegal frames need not necessarily result in frame repetitions by the master station since the main causes of such errors are to be found predominantly in the physical bus characteristics e g signal reflections Therefore the signal waveform and the value of the illegal frame counter can differ from measuring point to measuring point PROFIBUS Tester 3 9 3 Description of Functions and Measuring Principle User Manual PROFIBUS Tester 3 served that the connector of the master station should not simply be removed otherwise a defect in the ca ble will result and the terminator will not be powered at this point The frames of the PBT3 master simulator are not visible to the PBT3 The address of the PBT3 changes dy namically between the PROFIBUS addresses still free to ensure that the whole address range is available for the stations during the start up 3 4 2 Station scan This function automatically determines all stations connected to a PROFIBUS plant and ready for communi cation This so called live list will include all addresses of devices from which at least one valid frame h
61. rement One station and if this address is identical to the station to be measured a trigger pulse is generated at the trigger output of the PBT3 BNC socket This can be used in conjunction with an oscilloscope to display and check the bus signal for any station 3 3 Online monitoring functions 3 3 1 Bus status The bus status provides a quick overview of the status of your PROFIBUS plant A cyclic measurement over one second indicates whether or not data traffic level change is present and whether or not the PBT3 is connected correctly to the bus The so called idle level of the bus is measured and displayed on an idle plant without data traffic Conclusions as to any errors in the bus cabling can be drawn from the value of this dif ferential voltage Such errors can be for example swapped lines as well as missing surplus or unpowered terminators 3 3 2 Bus cycle time PROFIBUS functions on the basis of the master slave communication hierarchy with token passing A PROFIBUS master controls the access to the bus and polls its configured PROFIBUS stations slaves Once the master has executed its communication tasks it passes the token frame to the next master or back to itself in plants with only one master The bus cycle time token rotation time of a master specifies how long the token travels for a complete bus cycle More precisely the time measurement starts with passing on of the token by a master and ends after a bus cyc
62. rement has been completed successfully the dialog box is closed automatically and the to pology determined is displayed in the Topology display 4 5 2 Recording the online monitoring The measured values llegal frames and Bus cycle time displayed in the message bar can be recorded if necessary and also saved in the PBT3 document To start recording click with the left mouse button either on the option or on appropriate icon in the message bar The current measurement values are displayed in the text fields While the recording is running the REC icon is displayed in the message bar In contrast to the message bar it is not the current value but the average value since the start of recording which is calcu lated and displayed in the text field for the bus cycle time The remaining fields correspond to those displayed in the message bar When using the recording functions please note that the stored values are lost when stopping and then re starting the recording process and are then overwritten by the new values For this reason when opening a PBT3 document the recording is first always deactivated If the illegal frame counter or the bus cycle time is reset when recording double click on llegal frames or Bus cycle time in the message bar this will also have an effect on the recording values these values will be reset The recording functions can be used independently of any other measurements performed on the PBT3 4 5 3 Ev
63. softing PROFIBUS Tester 3 User Manual Softing AG Richard Reitzner Allee 6 D 85540 Haar Telefon 49 89 456 56 0 Telefax 49 89 456 56 399 E Mail info softing com Web www softing com PB T3 PROFIBUS Tester User Manual Version 1 2 Date 4 7 2005 softn 9 Telefon 49 89 456 56 0 Softing AG Richard Reitzner Allee 6 Telefax 49 89 456 56 399 8550 Haar E Mail info softing com Deutschland Web http www softing com Revision Overview User Manual PROFIBUS Tester 3 Revision Overview Dato Revision Ghangets 3 10 2005 Update and documentation of the function extensions Copyright 2005 Softing AG Subject to change without prior notice Our policy is one of continuous improvement and consequently the equipment may vary from the description and specification in this publication The specifications illustrations and descriptions provided in this docu mentation are not binding in detail No part of this publication may be reproduced in any form or by any means without the prior written permis sion of Softing AG All rights according to the copyright law expressly reserved to Softing AG Note To use the PROFIBUS Tester 3 and to understand this Manual general Knowledge of the PROFIBUS field bus system and of the RS485 transmission technology is required PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 Table of Contents Table of Contents T INtFOQUELION
64. sured symbolized by X 20 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 5 6 Topology display The total line length the determined line lengths between the stations and their topological order as well as the positions of the measuring points are displayed here circular icons with the number of the measuring point index The length specifications in meters always specify the distances between two stations If the DMF information is available for a station the device designation is also displayed 4 6 Measure All Stations view 4 6 1 Howto use The Measure All Stations view provides an overview of the signal conditions of all stations The measured quality level is displayed clearly in a bar diagram for each station Any minimum and maximum values are also marked graphically so that any variations can be noticed easily The following additional information is displayed m Glitch edge and level error counters m Minimum and maximum values of the quality level together with a time stamp The measurement can be carried out both as a single measurement each station is measured only once and as a continuous measurement Fig 8 shows a screenshot of this view 4 6 2 Setting and measuring The requirements for this measurement are m The PBT3 must be connected both to a PC and to the PROFIBUS plant bus status LED green yellow m The correct baud rate must be selected m The master simu
65. t data as a test record the contents of a PBT3 document can also be specified as a CSV file This can be read using any standard spreadsheet program to enable the measured data to be processed further If all measurements are completed the export function can be called using the File Export CSV file menu Thereafter a dialog box appears where you can specify the storage location and the name of the CSV file Next a settings dialog is opened to selected the measuring point and the required data areas to be ex ported to the CSV file This dialog is handled similarly to the settings dialog for the test record see Sec tion 4 10 Printing a test record When opening or importing the CSV file to a spreadsheet program observe the following formatting settings to ensure that all columns lines and data formats are read in correctly m Column delimiter semicolon m Line separation Carriage Return Line Feed CRLF OxODOA m Decimal delimiter the decimal delimiter set in the system either a point or a comma 28 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 11 2 Graphics Use the File Export Graphics menu to export various graphical representations of measurement data as bitmap graphics bmp This is only possible if measurement data for the currently selected measur ing point and or the relevant station exist If this is not the case the releva
66. t need the program you can remove the link from the Autostart folder 30 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 5 Technical Specifications 5 Technical Specifications General parameters and overview of functions Field of application PROFIBUS DP and FMS to IEC 61158 formerly EN 50170 or DIN 19245 Bit sampling e 8 fold quality level and errors e 16 fold disturbance free voltage range and edges Signal sampling oscilloscope display 192 MSample s 2 400 sampling points Triggering to a station e to frames SD1 SD4 with a certain source address e to a short acknowledgment OxE5 target address of the request frame Supported baud rates e 9 6 19 2 45 45 93 75 187 5 500 kbit s and 1 5 3 6 12 Mbit s e Automatic detection via baud rate scan Station list live list e Master slave differentiation e Automatic detection via station scan e Specification of ID number and distance e Automatic sorting by topological order Topology determination e Active with integrated master simulator e All masters disconnected from the bus e Accuracy 2 m maximum distance 230 m Management of measuring points e Option of measuring at different measuring points e Automatic sorting by the station list Quality level and errors one all stations e Value of the signal quality typ 200 5 000 e Glitch edge and level error counters e Minimum value and maximum value storage e Time stamp e Long time measurement logger
67. t of 4 35 ns m is used for calculation with PROFIBUS cables 3 2 5 Measuring cycles and measuring time The above characteristic measured values for the signal quality are determined by the PBT3 for each PROFIBUS station in so called measuring cycles see Table 1 Measured Value Measuring Cycle Quality level incl glitch Eight iterations with at least 1 000 bits of the station to be measured edge and level errors relevant frames Disturbance free voltage Ten iterations with at least one frame of the station to be measured range edge steepness and relevant frame signal waveform Table 1 Description of the measuring cycles Especially with low baud rates PROFIBUS plants with many or unconfigured stations or large amounts of data to be transferred a measuring cycle can last longer If it is not possible to determine all data during the measuring time the measurement will end with a timeout In this case the timeout value can be increased via the PC program menu Tools Settings PROFIBUS Tester 3 7 3 Description of Functions and Measuring Principle User Manual PROFIBUS Tester 3 3 2 6 Triggering to a station address During a measuring cycle the PBT3 must detect frames of the PROFIBUS station to be measured and evaluate its physical bus signal The assignment of the signal sent to a station is provided via the source ad dress SA contained in each PROFIBUS frame Once this address has been detected in the measu
68. urbance free voltage range is used to denote a voltage range of the differential voltage for a selected station over the whole frame whose limits are not violated not even momentarily over the evaluation period Device master file description of the technical data of a PROFIBUS device Digital storage oscilloscope 10 16th of the bit width around the bit center RS485 transceiver sample point within which the distur bance free voltage range is measured Software for a microprocessor Field Programmable Gate Array programmable logic array for real time functions Bus condition or transmission break between two successive frames Device code of a PROFIBUS device used for assignment to the device master file DMF Frames which do not conform to IEC 61158 3 with protocol errors Active bus station usually the PLC coordinating the access to the bus The term relevant frame is used if a frame contains the source address of the bus station to be meas ured or the short acknowledgment following a request frame issued to this station PROFIBUS section terminated on both line ends using a powered resistor combination A repeater which is either inserted between line ends or else connected to one line end also constitutes a seg ment termination Bus station which as a rule only sends to the bus upon request by the master e g digital I O Frame SD4 which is exchanged between the active stations masters to control the access to the
69. ws XP Service Packs 1 and 2 Microsoft Windows Server 2003 Note Microsoft Windows NT 4 0 and Windows 95 are not supported 4 2 Installing the software The PC software is available in English and supplied on CD The installation program will set up the PBT3 ap plication software on your system and will install the USB driver required for your device To this end perform the following steps 1 Insert the CD into the appropriate drive of your PC Thereafter a Welcome window is opened 2 Click on the Install Software menu item 3 Follow the instructions of the setup program 4 After the setup your PC must be restarted Note To install the USB driver you must possess administrator rights 6 If the Welcome window does not open automatically launch it via START Run drive letter of your CD ROM drive welcome exe OK or start the setup program directly from drive letter of your CD ROM drive Software PROFIBUS Tester 3 setup exe 12 PROFIBUS Tester 3 User Manual PROFIBUS Tester 3 4 The PBT3 Application Software 4 3 General notes on operation 4 3 1 Help When designing the PBT3 application software special attention was devoted to a clear structure and a self explanatory graphical user interface All elements of the user interface display detailed explanations when the mouse pointer is moved over a control element tool tip er This document is also supplied in electron

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