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+--- Forum: Scripting (https://forum.logicmachine.net/forumdisplay.php?fid=8)
+--- Thread: Rs 485 (/showthread.php?tid=5153)
Rs 485 - a455115 - 14.12.2023
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?
RE: Rs 485 - admin - 14.12.2023
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
endRE: Rs 485 - AISystem - 14.12.2023
I needed something similar for rs232 too. There was one example on the site for rs 232 but it is gone.
Thank you!
RE: Rs 485 - admin - 14.12.2023
For RS232 change /dev/RS485-1 to /dev/RS232 and duplex from half to full