KNX LogicMachine3 Re:actor, Product Manual

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The following examples shows the basic syntax of storage.get . Assuming that key value
was not found, first call will return nil while second call will return number 0 which was
specified as a default value.
1. result
=
storage.get
( 'my_stored_value_3' ) -- returns nil if value is not found
2. result
=
storage.get
( 'my_stored_value_3'
,
0 ) -- returns 0 if value is not found
•
When storing tables make sure to check the returned result type. Assume we have created
a storage item with key
test_object_data .
1. objectdata ={}
2. objectdata.temperature
= 23.1
3. objectdata.scene
= 'default'
4. result = storage.set ( 'test_object_data' , objectdata ) -- store objectdata variable as
'test_object_data'
•
Now we are retrieving data from storage. Data type is checked for correctness.
1. objectdata = storage.get ( 'test_object_data' )
2.
if type (
objectdata
)== 'table' then
3.
if
objectdata.temperature
>
24
then
4. -- do something if temperature level is too high
5.
end
6.
end
1.2.13. Alert function
alert(message, [var1, [var2, [var3]]])
Stores alert message and current system time in the main database. All alerts are accessible in the
"Alerts" module. This function behaves exactly as Lua
string.format .
Example
1. temperature
=
25.3
2.
if
temperature
>
24
then
3. -- resulting message: 'Temperature levels are too high: 25.3'
4. alert
( 'Temperature level is too high: %.1f'
, temperature
)
5.
end
1.2.14. Log function
log(var1, [var2, [var3, ...]])
Converts variables to human-readable form and stores them in the main database. All items are
accessible in the "Logs" module.