25
Parameter setting
Sensor Sewi KNX L-Pr
• Version: 26.10.2021 • Technical Changes and Errors excepted.
Information on setting the slave sending cycle and the cycle reset can
be found in chapter
Align communication between master and slave
Set the
object type and value
for the master's slave cycle reset output in the same
way, as the cycle reset input for the slave.
The master can be
blocked
via the bus.
8.3.2. Align communication between master and slave
Sending cycle slave - switch-off delay master
Set the slave's
sending cycle
shorter than the master's switch-off delay. Thereby it is
ensured that the master does not perform a switch-off action, while the slave is still de-
tecting a motion.
Slave cycle reset
The cycle reset for the slave is required, if a master switch action by the "master: central
off" object was triggered.
When the master performs a switch-off action, it simultaneously sends a message to
the bus via the "master: slave cycle reset". . This message can be received by the slave
via the "slave: cycle reset" in order to
immediately
send a message to the bus in the
event of a motion detection. The master receives the motion message without having
to wait for the next slave transmission cycle.
Please note that object type and value for the slave's cycle reset input and the master's
cycle reset output must be set the same.
Application Example:
A person steps into a corridor, the master recognises this movement and switches on
the corridor lighting. When leaving the corridor, the person wants to switch off the light
using a switch.
Slave cycle reset object type
• 1 bit
• 1 byte (0%...100%)
Cycle reset at value
0 • 1 and/or 0...100; 1
Use block
No •
Yes
Analysis of the blocking object
• at value 1: block | at value 0: release
• at value 0: block | at value 1: release
Value prior to first communication
0 • 1
Output pattern
On block
• do not send anything
• Send value
For release
• as for transmission pattern
• send current value immediately
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