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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
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