Tridonic luxCONTROL DaLI Msensor 5DPI 14, Руководство по эксплуатации продукта

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Product manual DALI MSensor 5DPI 14 | 06-2017 | 1.1 | en
Appendix
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12.2.1. Additional explanations
DALI "RECALL MAX LEVEL" and "RECALL MIN LEVEL" commands
When the "RECALL MAX LEVEL" command is sent to the DALI address of the DALI MSensor , its internal LED
starts to flash. This makes it possible to identify the sensor in the system.The "Recall Min" function complements the
"Recall Max" function. When this command is broadcast or sent to the address of the DALI MSensor , the LED is no
longer lit.
DALI "QUERY ACTUAL LEVEL" command
This command can be used to query the currently measured brightness value and the status of presence detection.
The MSensor returns an 8-bit value.
This response is coded as follows:
Binary response Presence value Light sensor value
MLLL'LLLL
M (bit 7): Presence status LLL'LLLL (bits 6…0): Brightness
1 = Motion detected 0 = No motion detected Binary coded brightness
Brightness code LLL'LLLL (bits
0…6)
Binary representation of brightness
in lx
Brightness values in lx
11xxxxx
1xxxxx0000 512…1008 lx, in 16 lx
increments
10xxxxx 01xxxxx000 256…504 lx, in 8 lx increments
01xxxxx 001xxxxx00 128…252 lx, in 4 lx increments
00xxxxx 000xxxxx00 0…124 lx, in 4 lx increments
The motion sensor bit contains information indicating that motion has taken place since the last query, i.e. the bit is
set in the event of motion and cleared again by the "QUERY ACTUAL LEVEL" query.
I
NOTICE
The brightness measured by the sensor depends on various factors such as room height, type of furniture and the
nature of the floor. The value measured at the sensor is only 20 to 40% of the actual brightness across the
measured surface area.
Example: A brightness value of 500 lx on a desk having a reflectance of 30% produces a measured brightness
value on the sensor of 150 lx.