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Showing results for tags 'jz20-j-t40'.
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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
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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