5/18/2020 8:47 AM | |
Posts: 19 Rating:
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Modbus protocol stopped working. The tests carried out previously worked correctly, but on Wednesday I did some tests with the CR6 and they did not work, I thought it was due to the size of the registers or another situation, but the following happens. The Modbus connection status says disconnected and I don't know how to change it. Using the Modbus Server program (which had worked perfectly before), now LOGO! does not read anything that the server sends it. I used the Modbus Poll program to check if it was a situation in the program but it works correctly (see attached-PollTest). I have checked the IP addresses, both in the computer and in the LOGO !, as well as in the LSC and everything seems to be correct. (see attached Screen-2) The LOGO! shows a disconnected message (sorry because it is in Spanish, see attached-Diagnostico-2-3). I also did a ping between the computer and the LOGO to verify the connection via Ethernet (see attached ping). Lastly, I clarify that the executed program was one previously promoted in this same forum (attached Modbus-Client), where LOGO! it is the client and the computer as a server, simulating the CR6.
AttachmentModbus-Client.zip (244 Downloads) |
5/18/2020 8:49 AM | |
Posts: 19 Rating:
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The attachments
AttachmentThe attachments.zip (252 Downloads) |
5/18/2020 5:26 PM | |
Joined: 2/22/2008 Last visit: 8/6/2024 Posts: 2698 Rating:
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Very strange, your Modbus server will know its own IP address ? Perhaps your Modbus server has several parameters, which i cannot see from here. Maybe you can test it with another Modbus server, look to this Link If have tested this with my Logo and it works. There is no installer, just start the .exe. If "show protocol information" is checked, then sendings and requests must run through the display. On the right side you can select coils, input registers and holding registers. Type in your value and look to your Logo. See also example picture of my test. Regards, Scorp |
5/18/2020 5:53 PM | |
Posts: 19 Rating:
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Scorp, Ok, I am installing the Java Environment to use the one that you send me, If you can, please try the one that I am using, seen all the parameters, Modbus Server, It use to work before, that is why I am so confused! I have a video of everything working just fine if you want to see it. |
5/18/2020 6:24 PM | |
Posts: 19 Rating:
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I did this, search for an older version of EasyModbus Server (2.4), open it and it didn't make any connection (see attachment) but when I run the Modbus Poll program it make a connection only inside the computer not the LOGO! I think that the problem is in the LOGO!, it is not making the request, and since it appears always disconnected it doesn't do anything, but how can I verify this? Do I reset it to its factory settings? Can you make an example of the LOGO working as a master so I can run it fresh new please Scorp. Thank You AttachmentEasyModbus.zip (249 Downloads) |
Last edited by: Pablo Molina at: 05/18/2020 18:45:43Last edited by: Pablo Molina at: 05/18/2020 18:48:02 |
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