Search found 11 matches

by MikeStern
14 May 2024, 22:55
Forum: Software
Topic: Modbus TCP doesn't work anymore
Replies: 5
Views: 1371

Re: Modbus TCP doesn't work anymore

Hi, good news! :) i have solved the problem! the command that i have used to change the mac address "sudo revpi-factory-reset compact 81919 C83E-A710-253D" was wrong ! the right command tha i had to use is "sudo revpi-factory-reset connect 81919 C83E-A710-253D" because i have a R...
by MikeStern
14 May 2024, 14:05
Forum: Software
Topic: Modbus TCP doesn't work anymore
Replies: 5
Views: 1371

Re: Modbus TCP doesn't work anymore

Hi,
i cant log-on on web interface... the password doesn't work ! ( i never changed it)
How i can restore or reset the password of the web interface?

Thanks
by MikeStern
14 May 2024, 13:42
Forum: Software
Topic: Modbus TCP doesn't work anymore
Replies: 5
Views: 1371

Modbus TCP doesn't work anymore

Hi, after i had reset the mac address if my RevPi Compact with the command " sudo revpi-factory-reset compact 81919 C83E-A710-253D", my modbus TCP ttyRS485 interface it doesn't work anymore. at prompt also i receive this message pi@RevPi81919:~ $ piTest -r Modbus_Master_Status Cannot find ...
by MikeStern
19 Dec 2022, 23:38
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

Hi, I bought another RevPi Connect+ device but I have again the same modbus communication problem with Modbus RS485 on /dev/ttyRS485 - if i use '/dev/ttyUSB0' (with usb/rs485 adapter) all work correctly !!! - if i use '/dev/ttyRS485' (with two wire +- connected to modbus rs485 pinout) doesn't work !...
by MikeStern
05 Oct 2022, 23:04
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

Hi Nicolai,

i had update ro Buster the revPi and seems to be ok, but now i have this problem via SSH " Server does not support diffie-hellman-group1-sha1 for keyexchange"
How i can solve it?:

Image

Thanks
by MikeStern
05 Oct 2022, 16:26
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

Hi Nicolai,
Yes on my device there is Stretch (no particolar reasons, but only because i had buy this device 24 months ago').
I have to update to Buster
Image
by MikeStern
05 Oct 2022, 14:57
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

this is other screenshot pi.modbus-master status:
Image
by MikeStern
05 Oct 2022, 14:29
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

Hi Nicolai, this is the kernel.log: https://i.ibb.co/5WmSHrf/kernel.jpg Slave option is disabled: https://i.ibb.co/wptD71Y/slave.jpg is there any system bug on the RS485 port that needs updating? I need urgent assistance because we are buying 50 pcs (for our monitoring system) but we are worry by th...
by MikeStern
03 Oct 2022, 23:28
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

Re: No such file or directory: '/dev/ttyRS485'

Hi Nicolai I'll send you the Kernel Log tomorrow. Other useful information about my problem: if i use ' /dev/ttyUSB0 ' (with usb/rs485 adapter) all work correctly !!! [/u]if i use ' /dev/ttyRS485 ' (with two wire +- connected to modbus rs485 pinout) doesn't work !!! Also the command piTest -r Modbus...
by MikeStern
03 Oct 2022, 11:43
Forum: Software
Topic: No such file or directory: '/dev/ttyRS485'
Replies: 13
Views: 5998

No such file or directory: '/dev/ttyRS485'

Hi, i have a communication problem with Modbus RTU communication on MyrevPi Connect +. The communications are working well but, a few hours ago, I had this problem when I launch my Python program (influxDB.py) to read the modbus RTU data from my device. Now not found ! I use minimalmodbus driver (ht...