Rs 485

[a455115]

Hello admin, I have a device that operates on RS485. I would like to read data from it. It's not Modbus, but some other RS485. How can I 'listen' to what is coming on the port?

[admin]

This script will log every received character in hexadecimal form.

Code:

port = require('serial').open('/dev/RS485-1', {
  baudrate = 9600,
  parity = 'even',
  duplex = 'half',
})

while true do
  ch = port:read(1, 1)
  if ch then
    loghex(ch)
  end
end

[AISystem]

I needed something similar for rs232 too. There was one example on the site for rs 232 but it is gone.
Thank you!

[admin]

For RS232 change /dev/RS485-1 to /dev/RS232 and duplex from half to full