Bes Ingenium KNX SR510000, Руководство по программированию

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SR510000
- Sensors
Programming manual
www.besknx.com
12
3.5 Advanced configuration
3.5.1 Brightness threshold
The SR510000 incorporates a brightness sensor that is able to measure ambient brightness from 0 to 2550 luxes
approximately. The brithness threshold value is an initial value introduced by the programmer and it is a factor from 0 to 100
with a base x10 luxes. This means that a threshold from 0 to 1000 luxes can be set initially by programming.
Manual configuration: use the communication object number 11: “Channel 2 – Brightness threshold” to read the current
brightness value measured by the sensor once installed in order to set a correct threshold for the lightning switching (Note:
If the channel is switched off the brightness level cannot be measured and it will answer a value of 0. Use Object 9 Channel
2 - Enable / disable channel to switch it on.)
Auto configuration: use the teach-in function by sending [0 0] to object number 11 to set the current brightness level as the
new brightness threshold.
3.5.2 Smoothing and sampling time
The SR510000 is constantly emitting infrared signals. The movement detection is based on the change which any body,
material or thing makes in the infrared signals reflected. These signals are processed and considered as a “motion detection”
depending on parameters.
The SR510000 behavior depending on the parameters configured is shown in the next figure:
Any movement that generates a number of pulses higher than the smoothing , within a given sampling time, is considered a
“motion detection” by the sensor. For the same sampling time, increasing the smoothing means that the movement should
be faster and higher to generate a “motion detection” because more pulses are necessary.
The telegrams executed by the sensor when there is a motion detection are sent after every sampling time, so increasing
the sampling time makes the sensor response slower. If the smoothing does not change, the movement needed to generate
a “motion detection” can be the same, but the sensor does not switch on the light after the sampling time.