/dev/rs232 missing

NETWORKING SOLUTIONS
1

Hi,

I’ve been playing with a rut956 and serial modbus over rs232 and rs485. Everything was working fine until I tried to upgrade and downgrade between version 7.15 and 7.14.

Rs485 is fine but rs232 won’t work and when I use the console there isn’t a /dev/rs232 just /dev/rs485. Any suggestions?

I’ve tried factory reset with no luck.

Best regards Peter

3

Good afternoon,

Can you confirm whether you are currently checking with the newest RUT9M_R_00.07.15_WEBUI.bin firmware.

Can you also please send a screenshot where you are supposed to see rs232 functionality, and it is not there?

Regards,
Arturas

4

Hi Arturas,

Thank you for answering. The web ui just reports an error like ‘check configuration’. It is when I use the CLI I can see that the link for /dev/rs232 is missing.

However, I’ve managed to downgrade to 7.14.3 and fixing the issue, following the steps

  • Downgrade using a file to 7.14.3
  • Make the same configuration as before
  • Create the link manually for /dev/rs232 as root using
  • ln -s /dev/ttyUSB0 /dev/rs232
  • chown -h root:dialout /dev/rs232
  • Reboot the RUT956

But I would really like to know if there is an issue with firmware 7.15 and Modbus Serial on RS232 on RUT956 because it takes a couple of hours to update and revert.

Regards Peter

5

Hi there,

Can you please send us a screenshot of the configuration and the issue, with the newest (7.15) firmware?

Regards,
Arturas

6

Hi Arturas,

I’m sorry but I’ve spent the last 2 days resolving this issue and I can’t use more time. Trying to upgrade again will take at least 2 hours if it fails. I’ll just stay at 7.14.3

Best regards Peter

7

Hi there,

I have sent you a form for private communication, please fill in the form, and in ticket ID provide this query ID which is 14145.

Regards,
Arturas

8

Hi,

Thanks, I’ve submitted the form.

Best regards Peter