AS-Interface Maintenance and Troubleshooting
Contents
1. AS Interface Network 1 Dual network gateway with duplicate address detection connected to two standard AS i power supplies JPEPPERL FUCHS 19 SENSING YOUR NEEDS Subject to modifications without notice M HELPFUL WiRING HINTS E HELPFUL WIRING HINTS DON T DO Don t run AS i cable parallel to potential noise Separate AS i cable and noisy cable by at Don t locate terminator tuner next to the AS i Place the AS i power supply at one end of sources least 0 2 m power supply the network and terminator tuner at the other end Don t fasten yellow AS i and black auxiliary Separate the black and yellow flat cables cable on top of each other Outputs connected to drives or motors can Don t use noncompliant or out of specification Use correct wiring practices when using cause black AUX cable to be noisy AS i cable i e twisted shielded or wrong shielded cable including cable length impedance reduction to 80 m max and land shield on GND terminal on power supply Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com r3 PEPPERL FUCHS Subject to modifications without notice fa PEPPERL FUCHS i SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS 20 M HELPFUL WIRING HINTS N HELPFUL WIRING HINTS Don t power standard devices with AS i cable Power only2. I REPEATERS AS Interface Power Supply AS Interface Power Supply Repeater e AS Interface Scanner Gateway Wiring field mount repeater VAR G4F AS Interface Power Supply mc Enclosure Repeater e AS Interface AS Interface Scanner Gateway Power Supply Wiring enclosure mount repeaters VAR KE3 TERM or VAR KE2 Subject to modifications without notice fa PEPPERL FUCHS 13 SENSING YOUR NEEDS The network analyzer VAZ ANALYZER provides information about network stability and allows detailed analysis of protocol specific communication detail There are two modes of operation The first is online statistics where the overall health of the network is read The second is trace mode where individual AS i telegrams are recorded filtered and viewed for later analysis This mode is often used to track down specific input output or timing problems Online Statistics Advance statistics check for Little or no missing telegrams No slave telegrams without master call CO Consecutive errors Make sure consecutive errors are kept to a minimum 6x configuration error ee oe ee FT Network overview Check to make sure all EX ej Y le connected nodes are yon attain dA et eee green edna I O data Verify that the input and output data is correct Find out if a certain input is flickering or turning on for a short time by running a trace on that input
3. AS i certified devices with the Don t ground AS i anywhere on the network Allow the AS i signal to float properly AS i AS i cable AS i devices have special filtering under any circumstances derives much of its noise immunity from this components that safely pull power from the floating signal Tying one lead to ground will network interfere with the AS i communication PNP Sensor PNP Sensor Don t place AS i and noisy components next Keep the AS i components on one side of Don t neglect to check the number of retries Use the AS i analyzer to ensure that the to each other in a panel panel and high frequency drive components on the AS i network network is error free Capturing the network on the other Separate them with a metal health during project buyoff can relieve divider if possible and make sure cables do machine builders of future liability if changes not exit at the same location are made ERROR COUNTERS ERROR COUNTERS RESET 1A 48 2A 6 Subject to modifications without notice r3 PEPPERL FUCHS Subject to modifications without notice r3 PEPPERL FUCHS 23 Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS n HELPFUL WIRING HINTS N HELPFUL WIRING HINTS DON T DO Don t use more than two repeaters in a row Use repeaters in a star topology around the Don t use mor
4. Flashing Green Ing LED flashing On Yellow Waiting for start condition or door unlock condition Off Normal Flashing Yellow Safety module test local acknowledge required or FAULT On Red No AS i communication check address aa diagnostic stop enabled Flashing Red Peripheral fault check 1 0 2 ON On Green Contacts of the output switching elements closed f Flashing Green Delay time runs in event of Stop Category 1 Contacts of the output switching elements open PHI ON On Green Normal 3 OFF FAULT Li p g p B net ae Red Yellow Address 0 1 READY Ac ey Simultaneously l XQ Alternating Red Green Peripheral fault check 1 0 2 ON 7M flashing rapidly Internal device error power cycle is required Q OFF No AUX power check black AS Interface cable uL d A ON Normal NEED T O OFF Input OFF no AUX power or wire broken 2 ON Ik Cycling slowly Learning safety code sequences e Input ON 3 OFF FAULT Ax 0 Out Output OFF no AUX power or output not set by PLC 1 READY Output ON 2 ON No 24 V supply connected to L and M terminals Output shorted overloaded if supported by module 3 OFF FAULT Subse to modifications without notice r3 PEPPERL FUCHS Subject to modifications without notice r3 PEPPERL FUCHS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS E REPEATERS The communica
5. NEEDS Copyright Pepperl Fuchs www pepperl fuchs com I As INTERFACE Basics Use only certified modules gateways scanners and power supplies Total segment cable length is 100 m This includes the total of all trunk and drop lines E One AS Interface power supply is required per segment For example a network with two repeaters requires three power supplies E Exactly one gateway scanner is required per network E 31 addresses maximum extended addressing 1 31a and 1 31b is permitted on 2 1 and 3 0 spec networks for a total of 62 nodes E Address 0 the factory default address is used for automatic addressing and is not permitted on a running system Modules with extended addressing and 4 in 4 out are permitted only on networks where an M4 3 0 master is used E Update time per module is 150 us The formula for scan time is 150 us x number of addresses 2 Single addresses require one scan Dual addresses a and b require two scans Dual addresses a and b 3 0 4 in 4 out require two scans for inputs and 4 scans for outputs Analog modules 2 1 require seven scans per point Analog modules 3 0 require three or four scans per point Network cable can be run in any topology No shield or termination is required Specification compliant flat or round cable must be used Do not ground either AS i or under any circumstances anywhere on the network ground fault The network has a d
6. EIETETIEE m EET ES bi mm Subject to modifications without notice 14 Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS SENSING YOUR NEEDS I TERMINATOR AND TUNER Copyright Pepperl Fuchs www pepperl fuchs com The fixed terminator VAZ TERM extends the network to 200 m and the tuner VAZ TUNER extends the AS i network to 300 m These devices however will not correct problems caused by noise or bad AS i cable Requirements for Installation E The best network to extend is linear A network that has many drops branches may not be extendable B The power supply must be located at one end of the network segment and the terminator tuner at the other end E If arepeater is to be used an Advanced repeater is required The advanced repeaters VAR G4F or VAR KE3 TERM with termination switch built in have a faster response time which is required to couple long segments together E Always use analyzer VAZ ANALYZER to verify network integrity Tuning Procedure Tuner LED Indication Gateway scanner 1 Put in configuration mode by holding mode button for 5 seconds Q On Yellow 1 to 5 retries On Green Less than 1 retries LED Indication Meaning On Red Greater than 5 retries Tuner 1 Rotate mode switch to 2 Terminator LED Indication tuning Indication Meaning No power or voltage below 18 5 V 2 Press set button until LEDs strobe red yellow On
7. FAULT PWR AS i FAULT On Green On Green PRG enable PRJ Mode OK SYS On Green scanner cards only What do the numbers mean on the gateway s 2 digit 7 segment display Gateways scanners will show AS i addresses and error codes on the display While in run mode PRJ LED off the display should be blank Numbers on the display that range from 1 31 are addresses of the nodes that are faulted they are not error codes Numbers greater than 31are gateway error codes The two most common error codes are 40 and 41 JPEPPERL FUCHS SENSING YOUR NEEDS Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com Common PROBLEMS AND SOLUTIONS 40 Offline phase There is no power to the AS i network causing it to be offline or the network has been taken offline manually using the keypad or data bits in the PLC PC Gateway would say OFF LINE by host if this was the cause 41 Detection phase Gateway will remain in this phase until at least one node is found Place nodes on network making sure there are no duplicate addresses Also check for miswired power supply two power supplies on one network one power supply on two networks or the use of a noncompliant 24 V DC power supply My network is unstable What are possible causes and how do fix them AS i cable length could be too long or noncompliant cable was used AS i cable length is measured as the sum of the trunk cabl
8. G YOUR NEEDS El Common PROBLEMS AND SOLUTIONS 30 The number 44 is on the gateway display There is no AS i communication What do I do Check to ensure that exactly one power supply is used for each AS i segment This can be checked easily by powering down each of the AS i power supplies one at a time The PWR LEDs on all of the nodes within each segment must go off The U AS i LED on the segment connected to the AS i gateway scanner must also go off Make sure the AS i power supply is not being used to power auxiliary devices Disconnect the auxiliary power supply Walk around to every AS i node and make sure that the AUX LED is off The node is addressed correctly and connected to the network The PWR LED is red and the AS i scanner can t see the node What do I do Check for duplicate addresses Use gateways or safety monitors with duplicate address detection If these gateways are wired properly see pg 19 problems can be found easily If this feature is not available read the LDS List of Detected Slaves and check the nodes on the network These addresses must match exactly Disconnect duplicate and see if node appears If so a node with same address exists somewhere else on the network How do know if my network is running properly by using the LEDs on the scanner gateway and the LEDs on the nodes A properly running AS i network will have the following LED states Gateway Scanner LEDs Node LEDs PWR AS i On Green
9. Kcu a 1 i gy E dd FACT RY AUTOMATION E I7 Ius MAINTENANCE AND TROUBLESHOOTING GUIDE Edition 3 0 IAS INTERFACE PEPPERL FUCHS 2 TABLE oF CONTENTS AS Interface BaSICs ccssssseccesnseeeeeenseeesenneeeeeenaneeseennesenees 3 Addressing Modules sssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn n 4 Handheld Programmer eere e eee 5 Gateway Quick Start svissiscivissecsnsscessinvinisttwasnaransdsianisannanardeadion 6 Gateway Advanced Features eere 7 Exchanging SafetyNodes eee 8 Exchanging SafetyMonitors 9 LED Functionality Modules 10 LED Functionality SafetyMonitors 11 Repellers asignon AAi 12 PIVEN 2 E E A E E E T 14 Terminator and Tuner eee eere 15 Building Networks e ee eee eere enne enne nnn 16 Power Supplies cree eee eere ree enne neun 18 Helpful Wiring THIS aieo eoo ea cere onn po are uu axe napa co scu one ete nece 20 Common Problems and Solutions 30 Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS SENSING YOUR
10. RL FUCHS 16 SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com WY Buitpinc Networks AS Interface Power Supply Power Power Supply Supply Terminator Terminator Terminator AS Interface E zj Scanner Gateway m Repeater Repeater 200 m total cable length 200 m total cable length 200 m total cable length 600 m network using repeaters and terminators AS Interface Power Supply Power Supply Repeater Repeater e AS Interface Scanner Gateway 300 m total cable length 300 m total cable length 300 m total cable length 900 m network using repeaters and tuners Subject to modifications without notice fa PEPPERL FUCHS 17 SENSING YOUR NEEDS 18 IN Power Suppties Power supplies used for AS Interface are specifically designed for this network No standard DC power supply can be used unless it first goes through a power conditioner Only a few wiring guidlines are required E Exactly one AS Interface power supply is required for each segment E Some gateways have duplicate address detection To use this feature the power supply must be connected directly to the dedicated terminal labeled PWR on the gateway Standard power supply wiring Power supplies with ground fault detection Floating EFD output Attach sta
11. V DC power supply additional steps See procedure for single and multiple node replacement Both L and M must be removed 2 Use the special download cable VAZ SIMON RJ45 Connect the Exchanging a Single Failed SafetyNode new and old SafetyMonitors together 1 Remove SafetyNode 2 Lightly press the Service button on all affected SafetyMonitors LEDs 1 2 and 3 will cycle slowly on the SafetyMonitor 3 Connect replacement SafetyNode Make sure it receives an AS i address and its inputs are closed so that full safety code sequences are received by the SafetyMonitor Removable terminal release tabs 4 Press the Service button on all affected SafetyMonitors If successful LEDs 1 2 3 will turn off and the SafetyMonitor will start normally Exchanging Multiple Failed SafetyNodes 1 Remove all defective SafetyNodes 2 Use handheld programmer VBP HH1 to manually assign all addresses See page 4 Confirm there is no configuration error on gateway The replacement SafetyMonitor must be new with no configuration scanner Make sure all e stops are pressed all gates are open and all or have a configuration that is not validated light curtains are broken such that S1 and S2 safety input LEDs are off Power up replacement SafetyMonitor by connecting both L and M on all recently replaced SafetyNodes 3 The safety sequence must now be taught by following the procedure Prass iNe Service Dutton ND dSInen Seley Mon
12. Yellow Voltage above 18 5 V green red On Green Voltage above 26 V 4 When strobing stops this may take several minutes rotate mode switch to 3 run Subject to modifications without notice fa PEPPERL FUCHS 15 SENSING YOUR NEEDS WY Buitpinc Networks AS Interface networks are easy to build with only a few guidelines Communication between a gateway scanner and module cannot pass through more than two repeaters Additional network wiring restrictions are necessary if terminators or tuners are used to build even longer networks B Terminators and tuners should be located as far away from the power supply as possible within the segment Use only VAR G4F and VAR KE3 TERM advanced repeaters when using terminators and tuners to extend the network Use an AS i analyzer to verify proper terminator and tuner operation See Terminator and Tuner section for proper tuning procedure Tune the segments only in configuration mode PRJ mode LED on Tune segments one at a time starting with segments closest to the gateway scanner Disconnect segments that are not already tuned AS Interface Power Supply Power Power Supply Supply e AS Interface uj Scanner Gateway Repeater Repeater 100 m total cable length 100 m total cable length 100 m total cable length 300 m network using repeaters Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPE
13. d the inputs or set the outputs on a module This is often done to isolate and troubleshoot a specific I O point Procedure to Read Inputs and Set Outputs Make sure the handheld is in ADDR mode This allows the address to be read Press the MODE button until the ADDR mode is selected E Press ADR button and verify address is not zero If zero see previous page to set valid address Change mode to DATA by pressing the MODE button 4x or 7x depending on module type Menu will repeat if you go to far E Use arrow 1 buttons to select output value E Press and hold PRG button to turn outputs on Press and hold ADR button to read inputs Note The chart below shows which l i Data Bit D3 D2 D1 inputs or outputs are activated chi 09 D2 Di DO when the hexadecimal digit is Inputs uw m y mn displayed opus os fo TI ol sl ls sl e 7 DTE we e nels ne lee mes OTT me or v onor os 01 08 02 08 01 00 08 Display A S a E DTE ur we a uno unm OTT o 04 07 04 02 oao o 04 08 occ os0 o o or Subject to modifications without notice FdbEppERLLFUCHS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS UI E Gateway Quick START The gateway detects when modules are added or removed from the network and indicates a Config Error For gateways with a graphical display use the following procedure to make the detected configurat
14. e and all drops The AS i specification though conservative is 100 m maximum Exceeding this length could result in unnecessary retries by the AS i scanner gateway Reduce the segment length by adding a repeater and power supply Make sure that new segments are under the 100 m limit NOTE When over length network problems occur the nodes closest to the AS i master scanner are often those that are most affected connected a new AS i module to the network and stored the configuration It won t communicate What could be the problem Check in the AS i Reference amp Buyer s Guide for the minimum master specification you must have to use this module properly e f a node has 4 in 4 out and extended addressing it can only be used on M4 3 0 masters e Nodes with extended addressing that are used on 2 0 MO M1 M2 masters must leave parameter bit P3 on and data bit D3 off These bits used to toggle between A B addresses in spec 2 1 are defined only as data bits in earlier specs Changing these bits will cause the nodes to go offline am looking at the retry counters on the gateway and notice that the number of retries is significant What can I do to eliminate them Frequently it is only one AS interface node that is causing a problem on the AS i network This is usually due to miswired components in remote panels Use the retry counters in the gateways or even better use the AS i analyzer to connect nodes one at a time When a nod
15. e is added that starts generating retries anywhere on the network the cause is probably in the wiring to that node NOTE A network retry of a node on AS i does not mean that the problem is with that particular node The AS i network is connected to all nodes so a wiring problem on one node can affect the entire network Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS 31 SENSING YOUR NEEDS Contact Pepperl Fuchs Inc 1600 Enterprise Parkway Twinsburg Ohio 44087 USA Tel 1 330 486 0001 Fax 1 330 405 4710 E mail fa info us pepperl fuchs com Worldwide Headquarters l h bH heim G Email feinfo de pepperlfuchscom TECMARVIL lt COTS USA Headquarters anda ia Pepperl Fuchs Inc Twinsburg USA Sistemas amp Automa o E mail fa info us pepperl fuchs com ontaros STA 6330 Asia Pacific Headquarters un Venoas vecwana cow on Pepperl Fuchs Pte Ltd Singapore Sire WWW TECMARVI COM ER Company Registration no 199003130E E mail fa info sg pepperl fuchs com www pepperl fuchs com i PEPPERETEUCHS Subject to modifications e 2009 PEPPERL FUCHS INC e Printed in USA e Part No 912040 07 09 03
16. e than one AS i power supply For redundancy use two standard 30 V power AS i scanner gateway or use a terminator on a network supplies connected to a power condintioner and tuner to maximize the network length Power Supply Power Power Power k Supply Supply Supply AS Interface 3 l uj Ej d Scanner Gateway Repeater Repeater Repeater Power Supply vd Power Power Supply Supply Terminator AS Interface 3 li Scanner Gateway Repeater Repeater 24 Subject to modifications without notice r3 PEPPERL FUCHS Subject to modifications without notice r3 PEPPERL FUCHS 25 Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS n HELPFUL WiRING HINTS N HELPFUL WIRING HINTS I O Module Wiring Don t use one power supply to power two Use the dual channel power conditioner networks VAN KE2 2PE or use two separate power supplies one for each dari P Don t use the input power terminals IN IN Use these terminals to provide power to for anything other than what they were sensors and other input type devices only designed for powering sensors AS Interface Network 2 AS Interface Network 1 Don t ground input signals that are powered Allow the AS i module to completely power by the AS i network through the I O modules inputs connected to the module if designed to do so If the resistance to ground i
17. ifferential communication signal Subject to modifications without notice fa PEPPERL FUCHS SENSING YOUR NEEDS 4 El ADDRESSING MODULES If only one module has failed e remove failed module e connect new module As long as the new module is identical i e has the same I O and ID codes and has address 0 before connection no additional steps are necessary E f more than one module has failed e remove all failed modules e use handheld programmer VBP HH1 to manually assign addresses to all but one replacement module e the last replacement module will receive its address automatically Note The VAZ PK 1 5M V1 G addressing cable is required to work with any module using an addressing jack Setting an Address Using Handheld Programmer 1 Connect the module to the handheld using either the addressing cable M12 receptacle or direct connection 2 Press the ADR button to display the current address of the module 3 Use arrow 1 buttons to choose new address 4 Press PRG button to set selected address 5 Press ADR button to confirm address The diagnostic LEDs on the gateway scanner indicate a fault when one or more modules are missing or are not properly connected to network Subject to modifications without notice FF DEPPERL FUCHS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS WE HANDHELD PROGRAMMER The handheld programmer is a diagnostic tool that is used to rea
18. ion i e all modules found on the network the active configuration Config Error LED ON Press OK WARNING STORE AS I 1 OUTPUTS MAY BE CONFIGURATION UNKNOWN SLAVE RESET OK STORE PRJ MODE Press OK Press OK Press OK Press ESC twice Config Error LED OFF Press 1 Press DEVICENET STORE AS I QUICK SETUP CONFIGURATION SETUP STORE RUN STORE PRJ MODE CONFIGURATION OK IO PARAM TEST Gateway LED Fuctionality LED Indication Power Q On Green Meaning Power on On Red One slave missing or extra slave on the network Config Error x Flashing Red Peripheral fault on network U AS i AS i network is sufficiently powered AS i Active Green On Green AS i network operating normally in either configuration or protected mode Exactly one slave is missing in protected operating mode ane On Green and automatic addressing is allowed PRJ Mode OQ On Yellow AS i master is in configuration mode Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS SENSING YOUR NEEDS Gateway ADVANCED FEATURES Some gateways have advanced diagnostic features that can assist in finding network problems The built in fault detector will display new and old network errors All advanced diagnostics are found on the display by going to ADV DIAGNOSIS gt AS I CIRCUIT x gt Error Counters E If anode requires at least two consec
19. ndard AC input voltage here Connect to AS i segment here Connect ground terminal to machine ground and the shield 115 230 V switch of AS i cable if used Only on K24 supply Power OK Green LED Power Green Ground fault indication LED Red Reset button press 1 s simulates ground fault press 2 s to reset ground fault LED Overload Red Internal external ground fault switch EFD int shuts off on ground fault use pushbutton to reset EFT ext automatically recovers from ground fault default Connect AS i segment here Connect ground terminal to machine ground and the shield of AS i cable if used Attach standard AC input voltage here i Power supply connection for gateways U uis ui AS i Network 2 AS i Network 1 Power Supply AS i Network AS i Power Supply AS i Network 1 Power Supply AS i Network 2 Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com I Power SUPPLIES AS Interface Network 1 AS Interface Network 2 Dual network A B ControlLogix scanner card connected to two power supplies with ground fault detection AS Interface Network 2
20. o in Exchanging a Single Failed SafetyNode Repeat this procedure for On the replacement SafetyMonitor active transmission is indicated every recently replaced SafetyNode on the network when the yellow READY LED is illuminated Transfer is complete when the GREEN and YELLOW LEDs are both lit ATTENTION After replacing the defective SafetyNodes make 5 Disconnect defective SafetyMonitor and move all cables to certain to check the new modules for correct functionality replacement SafetyMonitor Version 2 14 has keyed removable terminals Press the release tab in at the top of the monitor and pull terminals straight up to remove Subject to modifications without notice r3 PEPPERL FUCHS Subject to modifications without notice r3 PEPPERL FUCHS 9 Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS E LED Functionatity MoDuLES E LED FuncTIONALITY SAFETYMONITORS I LED AS i1 JA 9 AS iS Ij LED AS i2 Jj T Hi fl Output circuit 1 f a 2 J Output circuit 2 lS orru 3 J on dual channel units only LED Indication Meaning AS i 1 Off No 30 V AS i connection to AS i and AS i terminals ee i Indication Meaning i On Green Normal Off No power Off Normal operation PWR On Green Normal AS i 2 B On Red No AS i communication or monitor address not stored in AS i Address 0 FAULT LED on or peripheral fault FAULT gateway scanner
21. s 10 MO inputs should be powered externally AS Interface Network 2 AS Interface Network 1 Subject to modifications without notice Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com E PEPPERL FUCHS Copyright Pepperl Fuchs www pepperl fuchs com PEPPERL FUCHS 27 SENSING YOUR NEEDS n HELPFUL WIRING HINTS HELPFUL WIRING HINTS Don t run inputs connected to safety modules Place AS i safety modules as close as Don t run the AS i and AS i wires apart in Do run the AS i conductors together preferably with long cables or run inputs close to possible to safe inputs or use Safety at Work the same enclosure in the same jacket This eliminates current potential noise sources components with direct communication loops and allows proper noise rejection to to AS i The safety sequence runs over occur on the network safe input lines and any disruption of this sequence can cause nuisance shutdowns ba AAZ VAT AIVAIVAR IS Aa Z YA A al VANAR IY Ba LA B al VAINAB NN Lac A ew a As INN Te ee a A A ih ae ba AAZ AR AIVAIVAR IN Aa Z YA A ALVAINSBA IVY 2 LA Bal VAINABLINN Lac A eg a As INN AA TE A a Subject to modifications without notice A PEPPERL FUCHS Subject to modifications without notice F JPEPPERL FUCHS 29 Copyright Pepperl Fuchs www pepperl fuchs com SENSING YOUR NEEDS Copyright Pepperl Fuchs www pepperl fuchs com SENSIN
22. tion path between an AS i module and gateway scanner must not go through more than two repeaters This example shows a network with five segments four repeaters and a total length of 500 m Note the position of the gateway in the middle segment AS Interface AS Interface Power Supply AS Interface Power Supply Power Supply AS Interface Scanner Gateway ue i uec AS Interface AS Interface Power Supply Power Supply E Repeater Repeater Repeater Repeater 100 m total cable length 100 m total cable length 100 m total cable length 100 m total cable length 100 m total cable length A repeater adds a second galvanically isolated segment to the AS i network Because only communication passes through the repeater a second power supply is required Never put more than one power supply on a segment AS Interface segment 2 LED Indication Meaning No power supply connected in O p pply Q On Green Normal O off Normal FAULT On Red No communication A network that is properly setup will have AS Interface segment 1 one gateway scanner one power supply per segment no segment with more than 100 m total cable length no module separated from the gateway scanner by more than two repeaters Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com JPEPPERL FUCHS SENSING YOUR NEEDS 12 Copyright Pepperl Fuchs www pepperl fuchs com
23. utive retries counts will appear on the display next to that node address A clean network will have few or no retries Single retries are automatically handled at the AS Interface chip level and cannot be detected using the gateway Counts always go up by two E If any node has six consecutive retries it appears in the LCS with an X by the node address This node caused a configuration error Fault Detector The following errors occurred in the past HISTORIC or are currently happening ACTUAL Duplicate addresses are also displayed on this screen EFLT An earth or ground fault has occurred Check to make sure that AS i or is not touching machine ground anywhere OVRV A power spike occurred on AS i such that the AS i voltage was too high NOIS Noise was detected Route AS i cable away from potential noise sources Subject to modifications without notice Copyright Pepperl Fuchs www pepperl fuchs com ERROR COUNTERS RESET 1A 0 2A 0 l LCS LIST OF CORRUPTED SLAVES RESET APF 1A x J FAULT DETECTOR RESET HISTORIC EFLT OVRV NOIS ACTUAL EFLT OVRV NOIS DUP ASI ADR 0 31B HELP EFLT EARTH FAULT NOIS NOISE DUP ASI ADR DUPLICATE ASI SLAVE ADDRESS JPEPPERL FUCHS 7 SENSING YOUR NEEDS EXCHANGING SAFETYNODES I EXCHANGING SAFETYMoNITORS Compared to standard modules exchanging a SafetyNode requires a few 1 Disconnect the failed SafetyMonitor from the 24
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