Variables
Each instance of a DALI control device has a certain number of variables (parameters). These variables are used to configure the instance and thus influence its behavior. The values of the variables are stored in the respective DALI control device.
Name | Reset value | Scope | Size | Comment |
|---|---|---|---|---|
2#0000_0001 | 2#0000_000X | 1 byte |
| |
30 | 0…255 | 1 byte |
| |
30 | 0…255 | 1 byte |
| |
See table | 0…255 | 1 byte |
| |
5 | 0…25 | 1 byte |
|
X: not specified
eventFilter
Specific events for each instance are enabled or disabled with the event filter (see Event filter). If the respective bit is set, the corresponding event is enabled, otherwise it is disabled.
The function block FB_DALI103QueryEventFilter can be used to read the value of the event filter; the function block FB_DALI103SetEventFilter can be used to write to it.
tReport
The variable tReport specifies the report time of a brightness sensor after the occurrence of an event.
The report time is restarted when a new event is sent.
The value is given in steps of 1 s. The permissible value range is 0 (0 s) to 255 (4 min 15 s).
The function block FB_DALI304QueryReportTimer can be used to query the value, the function block FB_DALI304SetReportTimer can be used to specify it.
tDeadtime
The variable defines the time value for a dead time in which no new event is sent until the dead time has elapsed. If this timer is active, it is restarted after each transmitted event.
If the value is 0, the dead time event is disabled.
The value is given in steps of 50 ms. The permissible value range is 0 to 255 (12.75 s).
The function block FB_DALI304QueryDeadtimeTimer can be used to query the value, the function block FB_DALI304SetDeadtimeTimer can be used to specify it.
hysteresisMin
The variable hysteresisMin prevents large fluctuations in the illumination at low illuminance and thus low-percentage hysteresis.
The variable is an absolute value with a value range between 0 and 255.
The reset value depends on the resolution of the input values specified by the vendor.
|
Resolution |
Vendor-dependent reset value |
|---|---|
|
1…6 |
0 |
|
7 |
1 |
|
8 |
2 |
|
9 |
5 |
|
10 |
10 |
|
11 |
20 |
|
12 |
40 |
|
13 |
81 |
|
14 |
163 |
|
>= 15 |
255 |
The function block FB_DALI304QueryHysteresisMin can be used to query the value, the function block FB_DALI304SetHysteresisMin can be used to specify it.
hysteresis
The variable hysteresis indicates a percentage value of the hysteresis around a measured illuminance.
A value of 0 disables the hysteresis.
The function block FB_DALI304QueryHysteresis can be used to query the value, the function block FB_DALI304SetHysteresis can be used to specify it.