Turck modbus communication

[admin]

As suggested earlier you should use a profile instead of a script.
Here's a script that handles disconnect correctly. Make sure that script sleep time is larger than 0.

Code:

if not mb then
  require('luamodbus')
  mb = luamodbus.tcp()
  mb:open('192.168.0.162', 502)
  res = mb:connect()
  log('stato modebus', res)
end

if mb then
  value = mb:readinputregisters(9216)
  log('valore di value', value)
  
  if not value then
    mb:close()
    mb = nil
  end
end