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Found 34 results

  1. FIRMWARE

    Good night, It's possible lose all my data or the entire PLC program in the JAZZ PLC if i update the firmware?
  2. Hi, I have JZ20-J-T18 Jazz PLC, and U90 Ladder. I have 2 Analog Inputs that needs to be scaled. I have found a way to scale one of them, using SI 80-85 and my Analog Input (4-20 mA). Now i need to scale second one, but there is no SI for 2 or more scaling. My question is how to scale 2 Analog Inputs in U90 Ladder, if possible? Thankful in advance, Nikola Ljubinkovic
  3. Hi, I have a problem with aplication. My Jazz should works a few minutes as Master after that switch to Slave mode ( in the loop). It works, I switch to Slave mode till set SB25 (Ethernet Connect / Listen Request), after that Jazz turns to Master (write 0 to SI214) ??? Someone can help me ?
  4. Hi I have Unitronics Jazz PLC Jz20-J-T40 PLC. When I connect to my PLC and make online changes, like forcing bit that changes my output, PLC shuts down. This bit that I force, turns ON pump on Output, and then I should get confirmation work signal on Input, but instead, it shuts down. When I'm not connected to PLC, and this same situation happens, it works normally, i can also see confirmation work on my PLC screen. But when I'm connected it shuts down on same place. I have 8 pumps that works this way, and same thing happens on all of them. Does my model of Jazz PLC can work in mode that I'm trying to work in (online debugging with I/O changing) or not? Please help. Thankful in advance, Nikola Ljubinkovic
  5. Hi I have Unitronics Jazz Jz-20-T40 PLC. I have all the newest software and PLC system. When i power ON my PLC, and then using USB i connect it to my laptop, connection is working fine and i can see PLC from laptop. Then, when I download PLC Program to my Jazz PLC, it downloads normally, and as it should, PLC reboots. On my other Jazz PLCs it turns ON again, and it's still connected to my laptop. But, on this specific model, when i finish download, and try to connect to it again, it displays 4-5 messages that says restart U90, PC and so on. When I try to connect to it again, I get same message. I tried to restart U90, still the same. I really don't want to restart laptop, so I tried to unplug and plug USB. It shows me that i don't have needed drivers for this device. I click update device software, it says it's already newest, as it should. Then i try to install from U90, it says that I already have it. Then I unplug and plug again, and everything works normally. Every time I download, i need to unplug and plug USB twice, before I can again debug my PLC. It just needs to be reconnected twice, without installing anything at all. It confuses me a lot. Please help. Thankful in advance, Nikola Ljubinkovic
  6. Hi, I have Jazz PLC JZ20-J-T40, and i have 6 Screens on it. I have downloaded my program successfully, and PLC has been working properly for a wery long time, (two months to be exact). After I turned OFF and ON my PLC, it didn't displayed screens I have on it, so I thought that I have burned it, because of power or something. I measured power supply, it was OK, so I connected Laptop to PLC. I have successfully conected to PLC, and went online. I have some MBs on plc that i change using plc tasters, tried that, it works just fine. Everything works properly, except PLC Display. U90 Ladder has an option to debug display online, so I tried that on my laptop, it shows displays as it should, but on PLC just blank screen. I can see that PLC display is glowing a little, it just doesen't show any text that it should show. I have tried to download again, nothing changed. I tried to update Operating System, it says it's up to date. Is there a way of fixing this? Best Regards, Nikola Ljubinkovic
  7. Hi, I have Unitronics PLC V130-J-TR20 PLC, which is a master, and two Jazz JZ20-J-T40, which are slaves. I need two of the slave Jazz PLC's to communicate with master V130 PLC. I have made configuration in PLC Program for read and write, but it's not working properly. When i set bit for request to read PLC3 (MB100), it reads it normally. But, when i try to read PLC2, it reads same value that I have on PLC3, although Communication is OK with PLC2. I have read example project, and used it to configure communication between PLC's, like you can see in the images. Regardless of what I do, one of the PLC's is not working properly, communication says it's OK, but keeps reading values from other PLC. IP addresses are different, of course, and i have typed them correctly into the MODBUS IP Configuration, like in the image. On my Jazz PLC's I have done everything like Example project in U90 Ladder says. Is there a way of fixing this? Thankful Nikola Ljubinkovic
  8. Hello everybody, I have an analog force gauge (4-20mA, -5.000[N] ranged 5.000[N]) . I'm using an OPLC JZ-10-11-UN20. (has 3 AI's and a TC input) I read a few posts in this forum as well as the U90 help example regarding linerarization, and for some reason (probably there's something I'm missing ) it just doesn't work. the force gauge has a LED panel, which showed 0.291 [N], while the U90 program I wrote is attached. I notice changes in the result in the LED panel while applying force, but the U90 showed no change. can anyone point out what I'm doing wrong? secondly, the results I get from the TC (K type, range -200 to around 1000 deg. celsius) are around 220. I understood that since I use this specific model of JAZZ, this would not require special linerarization 22 would make sense, not 220. any Ideas ? does this require some kind of calibration? Thanks , Tzachi
  9. OPC Communication Slow

    Hi, I have two Jazz JZ20-J-T40 PLC-s, and one V130-J-TR20 PLC. I am using zView SCADA. I tried to connect them via Ethernet by using switch, but I cannot use two different PLCs on this SCADA. Then i tried to connect them to SCADA via uniOPC, but communicating is just too slow. I have just one bit that goes from 0 to 1 in 0.5 seconds, and back to 0 in 0.5 (1 second pulse), just for testing, still it's too slow. It runs normally for like 2,5 seconds, and then just stops, and changes in 4-10 seconds, or just freezes for 2-3 minutes, and then changes. My PC Spec are not in the way of this, I am sure of that, i have tried it on my weakest and strongest laptop, still exactly the same results, too slow with just one bit for each of the PLCs, that is 3 bits total. Does anyone had the same problem, is there a way of fixing this? Regards Nikola Ljubinkovic
  10. Hi, I'm using Unitronics PLC JZ20-J-T40, and ZView SCADA. I have successfully downloaded my program into PLC, and tested communication via usb (Serial), and via Ethernet (MJ20-ET1). It's all working properly. Problem begins when i try to connect my PLC to scada PC. With USB everything is working normally, but it's not an option for me to work with usb connection. I want to work with Ethernet communication between PLC and SCADA. What should i do to make it work? Regards Nikola Ljubinkovic
  11. MB manipulation through HMI

    Hi, I'm learning ladder by the aid of Unitronics JZ10-11-R10 PLC. While writing my 1st program I've ran into issue. The thing is that I can not find a way to input MB value from HMI. Are there any ways to do it ? Thank You
  12. Hello, I have a Jazz JZ20-T40 controller and i accidentally reversed polarity on transistor output power supply. Now that set of outputs doesn't seem to work (O0 - O11). Is there any fuse or something that i can change or is it necessary to take it to service to fix this? Thank you and best regards, Pawks
  13. Hello, I have JAZZ JZ20-T40 controller with two groups of transistor outputs, each with its own power supply (o0-o11 and o12-o19). Now my question is, can i power one group of outputs with 24VDC and the other with 12VDC? Or is 12VDC not an option for output power supply with this JAZZ at all? Thank you, Best regards, Pawks
  14. Hello, I have a problem using MODBUS communication with JAZZ JZ20-R31. I have two slave devices connected. I just read from the first one, and i just write to the second one. I had the first one alone before i added the second one and communication worked just fine. Problems came when i added the second device (the second one is a PLC from another company and it's used to send written data to the web). Yesterday communication worked for a few cycles, but after that it completely stopped, even with first device - there were no LED lights blinking like it should. Today i restarted my main JAZZ and talked to the guy behind the second device. He says that he sees the RS485 communication and that i am writing data to his device three times in one second. My MODBUS is setup with timeout set to 3000msec and 1 retry. I checked my write function, but it is only called once a minute (roughly) as i intended at the beginning. otherwise i have MODBUS commands separated by steps of 4 seconds each, so one command can't interfere with another. I tried to increase step times, changing timeout and retry on MODBUS setup, sending data in multiple steps, but nothing seems to help. What could be the problem here, i ran out of ideas...? Thank you, Best regards, Pawks
  15. Hello, Is there a possibility to update jazz firmware via modbus? By that i mean to read data via modbus and then execute the update. Or is the only possibility to manualy update with u90ladder? Thanks, Pawks
  16. Hello, I'm using Jazz JZ20-R31 controller together with MJ20-RS add-on module for RS485 communication. Is there a way to use RS485 communication and simultaneously use a modem on RS232? To rephrase the question: I would like to achieve some sort of remote access to data while still communicating via RS485, are there any suitable options (modem, wifi...) ? Thank you, Best regards, Pawks
  17. Hello, I have a problem using analog voltage inputs (0 - 10V) with jazz. When i connect one input (AN2 for example), the other input (AN3) also reads voltage which depends on AN2 input. It's not the same value, but if AN3 is not connected, voltage read is about 80% of what AN2 reads. When both inputs are connected, one affects the other and vice versa... It's really significant effect, so i don't think it could be interference related. Both inputs are also from the same power source and grounded. Any ideas what could be wrong? Thank you for help Best regards, Pawks EDIT: I forgot to ground pin "n/p I16-I17", now it works fine. Sorry for that.
  18. Hi I have an 3 installations. Each consisting of 8 x Jazz UA24, 2 x M91 RA22, 1 x JAZZ R16, 1 x JAZZ T41, 4 x CIAT water Chillers 2 x PROCON analogue input modules. They are all networked on RS485 using Specview SCADA package as MODBUS master. All the Jazz PLCs use the JZ-RS4 com port adapter All the Jazz controllers use the same Communication setup nets All the Jazz controllers are run from the same 24VDC power supply So that's the situation as it stands. My problem is that the JAZZ R16 on all sites has very flakey coms. It will occasionally come online after a restart for a short period of time then fall off again. The comms on all the other devices including all the other JAZZ PLCs is pretty solid. I have tried downloading the exact same program into a spare jazz UA24 and it communicates fine. So by deduction I would assume it is a hardware issue with the R16 specifically. Has anyone else had this problem and is there a way to fix it?? Thanks
  19. Hi all, Is there a way to measure power factor of a three-phase generator with jazz plc (JZ20-R31). I have an option to use an existing device(Sentron pac3100), but only float data type avaliable. Another option is Elnet which has integer data avaliable, but integer 0 when PF is 0,85 doesnt really help... I probably could get it with some math functions between real and apparent power, but that isn't the most elegant way to do it and is also error prone. Is there another way with JAZZ or do i have to use a different controller? Thanks in advance, Best regards, Pawks
  20. JAZZ USB-problem

    Hi evrybody I have problem with my Jazz PLC (JZ20-T18) If i plug usb conector my computer recognize "Unknow device" I try to install driver from U90, but no effect I also turn off UAC and install driver as admin I don't now where is the problem Can somebody help ?
  21. Hi, I'm using U90Ladder and jazz JZ20-R31. Everything was fine for a while - i was uploading and downloading projects with no problem and everything worked fine. Until suddenly when i tried to download a project i was asked for a password. (PLC is locked! Please enter password..) I never enabled any password protection, and never before was asked to enter it...where did this come from? I have no idea what is the password or how to unlock it now? What to do? Thank you, regards, Pawks
  22. I need to establish communication betwwen jazz (master) and energy analyzer-klea as slave using RS-485. Model of jazz is JZ10-11-UA24 with MJ20-RS. I need to read float value in klea starting addres 0 (Average voltage of three phases) I am newbie with unitronics and modbus ... Tnx in advance for any help. In attached files are: 1-klea modbus function 2-data adress in klea 3-example in klea
  23. Hi All, I have 3 Jazz PLC's communicating over Modbus with JZ-RS4, 1 master (R31) and 2 slaves(R10). Is there a way to check for errors in comms, Rx & TX. If comms fail, to reset all outputs on both slaves. (similar to CanBus "check alive function") thanks Matt
  24. Hello Can you give me an advice how to solve the problem.Well,I have PLC Jazz 20 R31 connected to modem(Scada) by RS485(Modbus protocol). Everything works but from time to time the communication between the devices disappears and I have to reset the PLC If I wanna restore the communication. It happens often when some unit(pumps) is switched on. The file with my Modbus config is attached How to solve the problem? Sincerely Wladimir unitronics.U90
  25. Hello! I would like to use my PLC controller to my study project. I have the Jazz JZ20-R10. I want to connect PLC to my PC. The reason of this connection is not download program from 'U90 Ladder', but i have identified mathematical model of process (steam boiler) and I need simulate this process on my PC. I have transfer function, differential equations. To recieve analog output values i'll use Euler method. This mathematical model with simply visualization i'm going to make in C#. And here is my problem. I nedd to send my output values from mathematical model in C# to memory (registers) Jazz. There, will be some LAD Program, and then JAZZ has to send values from registers to my computer (it will be my input of my mathematical model). Is it possible? Could You please give me proposals of solutions? Thx
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