M-Bus (Meter-Bus) library and examples

[Acla]

Did you change the port name in the script accordingly?

this is my script:
require('mbus')
-
res,err= mbus.init('/dev/RS485-1', 2400

log (res,err)

--scan from range 0 to 5 (inclusive)

res1,err = mbus.scan(0, 100)
--save result to Logs tab

log(res1,err)

-- read all data from device 26

res2, er = mbus.getdata(26)
log ( res2,er)

-- read ok
if res2 then
  log(res2)
-- read failed
else
  log('[mbus] failed to read data from short address ' .. 26 .. ' ' .. tostring(err))
end