Creating a KNx point for Modbus Device Communication Error Situation

[Erwin van der Zwart]

Hi Savaskorkmaz,

I don't know if there is a function for this in the system, but i solved it once with a little resident script.

Put your actions on the position where the logging is now (replace them with your action).

Code:

-- Check all modbus meters for connection
query = 'SELECT * FROM modbus_devices'
meter_state = db:getall(query)
previous_state = storage.get('meterstate')
if previous_state == nil then
 for _, device in ipairs(meter_state) do
   if device.active == 0 then
     log(device.name .. " = down")
   else
     log(device.name .. " = active")
   end
 end
 storage.set('meterstate', meter_state)
else
 for _, device in ipairs(meter_state) do
   if device.active ~= previous_state[_].active then
     log(device.name .. ' is changed to ' .. device.active)
   end    
 end
 storage.set('meterstate', meter_state)
end

BR,

Erwin van der Zwart