Modbus values wrong

[admin]

Try reading raw values via a script, change IP/port as needed:

Code:

require('luamodbus')

mb = luamodbus.tcp()
mb:open('192.168.1.100', 502)
res, err = mb:connect()

if res then
  -- mb:setslave()
  r1, r2 = mb:readregisters(197, 2)
  log(r1, r2)
else
  log('connect failed', err)
end

mb:close()