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  1. ProfiBus Noise

    On one of our installations we have a noise issue with a long segment of profibus.  Will installing snap-on ferrite cores help, hurt or make no difference.  I've heard both.  One side says proper grounding is more important and that the beads will round off the leading and trailing edges.  The other side says the beads are always helpful in noisy environments.
  2. CX-Configurator - Profibus DP-V0

    Once again. I'm still facing problem with Pofibus communication between PLC and Comnet-DP module. I'm trying to connect Bosch valve station equiped with Comnet-DP communication module with Omron CJ2M and RPM21 (profibus master) I've made proper configuration in master settings (most important was baud rate but Bosch module adjust baud according to master) Then I've set slave configuration as you can see below: According to:   Other settings were unable to modify or just were left unchhanged. Omron is detecting connected slave but returns diagnostics that says that something is wrong in parameter settings. Same message I can read from Bosch module LEDs. Any experiance in profibus diagnosis, advices what to do? I've checked all settings configurations I have no idea what to do.        
  3. LED status on MLC1200

    Hi, Can someone provide information about function and interpretation of each flashing or steady LEDs on MLC 1200. For example where to look for when Fault LED flashes during normal operation and so on. Thanks in anticipation that someone will help. Regards
  4. profibus connetion

    Hello, I want to ask you. Can I connect profibus master device as I drew? If not, when could to explain why?  The 9-pole D-Sub connector:    
  5. 1785-L40E

    Trying to figure out a fix to a processor issue, I have 2 1785-L40E processors a series E and F. Both when inserted into the rack and powered up go straight to a solid red BATT and PROC light as well as a Solid amber Force light, they both wont even attempt to start a boot up sequence. When connected through DH+ and ENET there is no visibility to either of these processors. These are refurbished processors.
  6. Hello, I am not very experienced with Siemens PLC's I want to change program in one S7-200 CPU 226 (profibus). I have never connected my laptop to it before and I don't have that PLC's program. I have PC Adapter USB A2 cable for that and V4.0 STEP 7 MicroWIN SP7 program. I connected the cable, opened the program and tried different settings for connection, most of times the test in diagnostics says that status is OK. But! in communications window when ever I try to refresh the adapter is gives me error: "Class not registered" So I'm not able to upload the program from PLC to my laptop. Can anyone give me support?
  7. I'm sorry, guys, but I wouldn't be asking if I hadn't dedicated about 12 hours to this already. Long story short: ACS800 with RPBA-01 Profibus Adapter and RTAC-01 Pulse Encoder Interface. All we send to the drive (aside from CW permissives) is a position reference, and I believe the DriveAP functions execute how the drive will achieve that position. My final aim is to separate the encoder from going back to the drive, to instead going to a FM350-1 Counter module. I'm following someone elses work that is long gone, has been changed multiple times, and comments are almost non-existent. Where I'm stuck is understanding the data coming from the drive and being sent to it. PPO Type 5; DPV 0. In Step7, I have a DB for 20 bytes of data to drive and another DB for 20 bytes received from drive. I understand (with respect to data from drive) that it should be: SW; ACT; PZD3...PZD10 (10 x 2 byte Words). But, when I looked through all the settings in the group 51 parameters, the values in the form of (xxyy; index then subgroup; ex: 106 is parameter 1.06) don't seem to exist in the ACS800 Firmware manual. PZD 3 OUT: 7 --- PZD3 IN: 6 PZD 4 OUT: 8 --- PZD4 IN: 10 PZD 5 OUT: 0 --- PZD5 IN: 106 PZD 6 OUT: 0 --- PZD6 IN: 0 PZD 7 OUT: 0 --- PZD7 IN: 611 PZD 8 OUT: 0 --- PZD8 IN: 612 PZD 9 OUT: 0 --- PZD9 IN: 701 PZD 10 OUT: 0 --- PZD 10 IN: 706 The manual says parameter values 1-99 refer to a "Data Set" and each number specifies a certain word in a Data Set. For example, PZD3 IN: 6 refers to Data Set 2 Word 3, which is defined by paramater 92.03. But, that turns up something about short circuit protection, when what my DB value is displaying a distance (from a linear string pot encoder) that matches what the mill is actually at. The ACS800 manual says Data Set Actual Signal words are defined in Group 92. So I looked there: 92: DS Transmit (From Drive) --- 90: DS Receive (From PLC) 92.01: Status Word (Fixed) --- 90.01: 4501 92.02: 103 --- 90.02: 4309 92.03: 402 --- 90.03: 4505 92.04: 412 --- 90.04: 1 92.05:106 --- 90.05: 3 92.06: 0 Any help would be appreciated. Thank you.
  8. Profibus connection program.

    Guys I'm having some troubles (as usual) I have datasheet for my profibus slave device (attached).  I've probably done proper configuration in cx-configurator, I've got CIO 3200 (output) and 3300 (input) addresses for that communication. There's the question. How can I assign plc bit to specific valve position (its address)? I've made simple program where I can change 3200.00, 3200.01 etc. states but BF led on prm21 still flashing, and nothing happens.    
  9. Hi again. I'm trying to make profibus connection between CJ2M and "Bosch Rexroth HF03 Manifold 12 Station DeviceNet Bus Box". After configuration I/O table in cx-Programmer and up[loading it to plc I've tried to configure settings in CX-Configurator. I've set up correct connection parameters of cj1w-prm profibus master. When I use "Test" option or just go online I get errors: "Communication Failure with unit" and "CX-server cound not be initialized". Am I missing CX-Server? I don't have this software installed on pc... When i try to use scan option i get another error: "Scanning failed, DTM returned an error for the request. Following DTM reported the error: Tag: CJ1W-PRM21 PROFIBUS Master Name:CJ1W-PRM21 PROFIBUS Master (Version V1.xx) Vendor OMRON Corporation.: Any advices? I can't find any good manual for CX-Configurator but i get CX-Profibus manual - is it interchangeable? Because i can see  some same options in both. Regards!  
  10. 1756-RM2 allen bradley

    Hello everyone, my name ia alif from indonesia i have redundancy module 1756-RM2 controllogix5000 Allen bradley. On the module, fault codes appear as EG12. What is it means ?   I have already search in the user manu but there is no explanation about this fault codes.     Thank you
  11. S7 300 Profibus fault

    Dear All, We are in need of your expert opinion. One of the nodes of our Crane's Cabin gives a station failure problem, due to which whole Crane shuts down. we have done everything from replacing Dp connectors to changing Profi cables, swapping modules with other stations, changing Power supplies but the problem remains the same. Following are the system details, 1. CPU S7 319 F3 fail safe 2. IM 153 interface module 3. OLM module for signal conversion fibre to profibus from main CPU.   We have several nodes after OLM but fault was persistent with 3 nodes. After comprehensive working, it came down to just one but still not diagnosed. I will also upload the diagnostic buffer if needed.
  12. Grupa ProfAs Sp. z o. o. jest firmą doradczą, świadczącą usługi w szeroko rozumianej dziedzinie Human Resources. Specjalizujemy się w rekrutacjach na stanowiska specjalistyczne, średniego i wyższego szczebla. Wierzymy, że nasz Zespół złożony z profesjonalistów jest w stanie zapewnić perspektywiczne spojrzenie i najwyższą jakość wykonywanych usług. Aktualnie dla naszego Klienta - firmy z branży automatyki przemysłowej - poszukujemy osoby na stanowisko: Programista sterowników PLC Kraków / Piła / Poznań ZAKRES OBOWIĄZKÓW: Programowanie sterowników PLC Siemens Wykonywanie aplikacji dla systemów SCADA i HMI Dobór konfiguracji sprzętowych PLC Testowanie i uruchamianie maszyn u Klientów końcowych (delegacje krajowe i zagraniczne) Wykonywanie programistycznych prac serwisowych u obecnych Klientów Sporządzanie instrukcji obsługi maszyn   WYMAGANIA: Bardzo dobra znajomość sterowników PLC Siemens Umiejętność parametryzacji serwonapędów, falowników, etc. Znajomość paneli HMI oraz systemów SCADA Znajomość sprzętowa oraz programowa komunikacyjnych sieci przemysłowych ProfiBus, Profinet, Ethernet, DeviceNet, Modbus, etc. Znajomość zagadnień i komponentów automatyki (przetwornice, serwonapędy, obwody bezpieczeństwa, aparatura modułowa, itp) Mile widziana znajomość programowania innych sterowników: Allen-Bradley, Omron Prawo jazdy kat. B Komunikatywna znajomość języka angielskiego lub niemieckiego OFERUJEMY: Współpracę w oparciu o umowę o pracę Udział w profesjonalnych szkoleniach Korzystne warunki wynagrodzenia Rozwój w firmie z doświadczeniem na rynku międzynarodowym nr w rejestrze 14990 Osoby zainteresowane prosimy o przesyłanie CV na adres lub kontakt telefoniczny pod nr tel. 881 700 778.
  13. Profibus Function Blocks for Q2ASCPU for Melsec ST Lite RIO inter-connection. Please assist in advising the attainment of such blocks - if any existing. Thanks
  14. Hi,   I have a client that uses a 1560-PDP1 PROFIBUS to SCANport Comm Adapter, they discontinued this item in 2015 and prosoft does not sell a replacement.  Does anyone know of an adapter that would work in the place of the 1560-PDP1 PROFIBUS to SCANport Comm Adapter.  Thanks
  15. Hi,   I have a client that uses a 1560-PDP1 PROFIBUS to SCANport Comm Adapter, they discontinued this item in 2015 and prosoft does not sell a replacement.  Does anyone know of an adapter that would work in the place of the 1560-PDP1 PROFIBUS to SCANport Comm Adapter.  Thanks
  16. Major Fault

    I have a compact logix with a major fault. Please see my attached file for the complete fault message.  Code 20 array subscript too large. or control data type to large or invalid. Has anyone observed this issue before.  The PLC is a compact logix model.  Every time, the controller is switched from program to run the major fault occurs within 5 seconds.  The fault can be cleared but then it comes back in a few seconds.  I have been told by my tech that no program changes have been made.  Could there be a hardware/wiring issue? Thanks much Document_1234.pdf
  17. I'm trying to ramp up from zero to enable a NJ calculated random curve to never produce a negative position point:                                                     Calling the move "Offset", and using a MC_MoveAbsolute fb, the idea is to trigger the curve generating ST to start when the move reached 50mm.  (Wanted the variable "Ready" to go TRUE at the end of the ramp to 50mm)  .. Then, MC_SyncMoveAbsolute fb would continue from there, sending streaming position data to the LinMot Linear motor. As seen above. But, there's a problem.  Initially, I used the MCMoveAbsolute.Done to start the ST curve move sequence, which also ramps amplitude from zero, over a period of 3 seconds: Offset + [(a number that goes from 0 to 1.0 in 3 seconds) * (the mathematically generated position curve)]   The result is a "clunk" at the transition of the end of the ramp and the start of the curve. Not sure when "Done" happens... started to think perhaps it's when the fb is finished making the command to move, and not when the move has actually finished. So I tried an IF_THAN:                    That was kinda silly, because the ramp final position never reached 50mm ... "Ready" never set to TRUE ...  close, but no cigar. So the next step was use a Round instruction that actually monitors the position of the slider: and a EQ instruction that compares the two, and issues a "Ready" command to start curve the curve program:                  This produced the Minor Fault:  Axis 0x543B0000 Motion Control Instruction Re-Exicution Disabled Now I'm thinking this can't work because "Ready" will only be TRUE when the the curve hits 50mm (which is quite often, after it starts running ... 50mm being the new zero) However, It did start the curve sequence.. but nothing moved because of the fault... Soooo.. The question is: How can I do a smooth transition from the end of an Offset move to the start of the curve?  Or.. better still...How is an "Offset" normally done to any curve generating routine? Thanks much, Regards, Michael PS:   Here's a look at what's happening when I tried using State Tracker... and something to compare actual position at the end of the Offset move, and the start of the random sea curve:      RSStart is the variable that powers the Random Sea ST program, and the SyncMoveAbsolute fb that drives the motor.  Cycle time is 1ms.  Probably would be quieter if I could 500us .. but the NJ is only a 101-1000               FYI... Delta Motion's RMC75E Motion Controller can make the Random Sea using LinMot's B1100-VF drive .. as quiet as a mouse.  But then, I think that controller has a cycle time of 1us!   Wondering if there's a problem with Direction or BufferMode:    _emc_Direction#_mcNoDirection or _eMC_Buffer_Mode#_mcAborting ????  Thanks for any ideas on the "Clunk" ... I may have to live with the "singing" ... sniff!  .... or use a Delta Motion Motion Controller ..      
  18. profibus packet problem

    I am new  in Siemens. I want to connect the oscilloscope to the TX and RX of the profibus  between PC and PLC . That is,I can observe its  wave and  packet. But , I  don't know how to understand this protocol . Is there information or paper about the Profibus protocol? thanks.
  19. Q series with Profibus

    Hi all,  i'm newbie in Mitsubishi PLC. Now i have a Q61P PLC with QJ71PB92V  PROFIBUS-DP Master Module. This profibus module to read the data from each VFD. Any sample PLC program to handle QJ71PB92V communication ? Please advice & help...  
  20. Hello PLC guys. I need some advice. I have 2 VFDs ABB ACS 850 with FPBA-01 PROFIBUS DP adapter module. I want to connect those vfds with PLC 1400. I want to read and write some parameters  from and into the drive. As i'm new to this field i need some advice from all. I need help in PLC side to do the communication. If anyone can help that would be great, thank you.
  21. Ethernet Global Data Comms Fault

    Hi All, We have a 4X Rx3i PLCs that use Ethernet Global Data (EGD) to talk to each other. At the moment we a facing EDG communication fault being generated and it trips the entire pumps What the likely causes of EDG faults: We have replaced PLC Ethernet Interface Modules-no fix We have tested the fiber optic cable-the readings show its OK Also,can someone explain what PLC heartbeat is?
  22. Hello guys, I have the following distribution in a profibus network: S7-315-2 DP(--> Salida del conector)1- Free DP connector2- RS485 repeater3- Periferia ET200S4- Periferia ET200S5- Periferia ET200S6- Periferia ET200S7- Periferia ET200S8- Variador MM440 (Cabinet C)9- Periferia ET200LENDS7-315-2 DP(<-- Entrada del conector)1- Variador MM440 (Cabinet A)2- Variador MM440 (Cabinet A)3- Variador MM440 (Cabinet A)4- Variador MM440 (Cabinet A)5- Variador MM440 (Cabinet A)6- Variador MM440 (Cabinet A)7- Variador MM440 (Cabinet A)8- Variador MM440 (Cabinet A)9- Variador MM440 (Cabinet A)10- Variador MM440 (Cabinet A)11- Variador MM440 (Cabinet A)12- Variador MM440 (Cabinet A)13- Variador MM440 (Cabinet A)14- Variador MM440 (Cabinet A)15- Variador MM440 (Cabinet A)16- Variador MM440 (Cabinet A)17- Variador MM440 (Cabinet A)18- Variador MM440 (Cabinet A)19- Variador MM440 (Armario A)20- Variador MM440 (Cabinet A)21- Variador MM440 (Cabinet A)22- Variador MM440 (Cabinet A)23- Variador MM440 (Cabinet A)24- Variador MM440 (Cabinet A)25- Variador MM440 (Cabinet A)26- Variador MM440 (Cabinet A)27- Variador MM440 (Cabinet A)28- Variador MM440 (Cabinet A)29- Variador MM440 (Cabinet A)30- Variador MM440 (Cabinet A)31- Variador MM440 (Cabinet A)32- Variador MM440 (Cabinet A)33- Variador MM440 (Cabinet A)34- Variador MM440 (Cabinet A)35- Periferia ET200S36- Variador MM440 (Cabinet B)37- Variador MM440 (Cabinet B)38- Servoamplificador E94AYCPM (Cabinet B)END What would be the best way to configure the network? As you can see I have more than 32 nodes in 1 segment and the RS485 repeater is not being used properly. Hope you can help me, Regards!
  23. SCL Powerup Fault

    Need a little help here - I am trying to re-purpose some old hardware.  I have 2 old SLC5/04 B processors (+15 yrs?), that are giving me the same problem.  After a power cycle, they boot to a solid fault light - no comms.  Cycling the keyswitch has no effect.  Popping the processor from the rack and reseating it, powers up in a default state - it will not reload automatically from the EEPROM (when I establish comms, I can reload from the EEPROM or download the program from RSLogix).  I can't read the processor fault.  The battery is good.  The rack was scavenged, I have no idea its history.  Also in the 4-slot rack are DI, DO and RIO Scanner cards. I would consider my self a competent programmer, but no A-B expert.  Any ideas here would be appreciated.
  24. Micrologix 1000

    Im having some trouble with a PLC and looking for a some help. Whats happening is output number 3 is stuck on. I thought maybe it was just the PLC. I pulled the program tried it on a new PLC with no luck. I checked for faults and the handheld shows no major faults. The output that is stuck on is for a door, its telling it that the door is open. Any help would be great.
  25. Hello people, I have established communication between a S7-200 and a S7-300 via profibus DP using an EM277 module. The network is well configured and i´m using a 32 Bytes Out / 32 Bytes In configuration on the module. I am able to send the bytes i need, but i also need to send one Double Word variable. How can i do that ? Suggestions? Thanks in advance, Boardwalk