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+--- Thread: RS485 (/showthread.php?tid=5746)
RS485 - omarlachhab - 15.11.2024
Hello everyone,
Is it possible to convert RS485 command this to modbus RTU.
if not port then
require('serial')
port = serial.open('/dev/RS485-1', { baudrate = 9600, parity = 'none', databits = 8, stopbits = 1 ,duplex = 'half'})
port:flush()
end
if port then
commandWrite = string.char(0x63, 0x67, 0x67, 0xD5, 0xD5, 0x67, 0x67, 0x66,0x66 ,0xD)
port:write(commandWrite)
port:close()
end
FN485 All Units Communication Protocol v121.pdf (Size: 1.71 MB / Downloads: 11)RE: RS485 - admin - 19.11.2024
It's a custom protocol that's not compatible with Modbus. You have to use a single resident script for integration because RS485 port cannot be shared between multiple scripts.