Check group status one time in resident script

[AlexLV]

Hello,

need a little help  - I made resident script - alarm signal is coming from fire panel to DI Logical 1 = No fire, Logical 0 = Fire. If input is open - I need alert message once that fire alarm appeared, if input closed - I need message once fire alarm disappear. I made loop and if alarm on  - make alert message and make alert status message On. If no  alarm - make alert message alarm disappear and that message status On. But anyway could not solve my task

fire = grp.getvalue('1/1/6')
firealertalarm = 1
firealertnoalarm = 1
if fire then
ugtrauksme = 1
else
ugtrauksme = 0
end
if ugtrauksme == 1 then
  if firealertalarm == 1 then
    alert('Fire alarm received')
    firealertnoalarmn = 0
  firealertalarm = 1
  else
  end
else
  if firealertnoalarm == 1 then
    alert('Fire alarm not active')
    firealertalarmnonemts = 1
    firealertalarm = 0
  else
  end
end