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Manual – KNX MultiLight Art.nr 44001
Doc.no. D-TS-ML-K-005-A
7
Switch actuator
7.1
Parameter
The relay functionality for KNX MultiLight includes regular ON/OFF switch capability,
ON/OFF time delay and staircase function. The basic functionality is offered through
three communication objects: “Switch”, “Force operation” and “Status switch”.
The relay can be controlled by setting the “Switch” object high or low. The relay can be
forced either ON or OFF by setting the “Force operation” object high. Feedback of the
status from the relay can be read from the communication object ”Status switch”. See
Figure 17 for a block diagram of the relay functions.
Additional functionality for the relay:
1.
Staircase functionality
a.
Writable object for the staircase time,
b.
Activation and de-activation of the staircase function.
2.
Time delay for turning ON and OFF the relay.
a.
Extra object for activation and de-activation of the delay function.
3.
Extra communication object for logical ”AND” or ”OR” function.
Figure 15 – Default parameters for the relay
7.1.1
Staircase function
The staircase function is specified by a time duration parameter in minutes. The staircase
timer will start when the switch object is set high. The relay is turned off when the
staircase timer has elapsed. The duration value can be changed via an object and this
value will be permanent until the next program download.
The staircase function can be disabled by writing a “1” to the object “Disable staircase
function”.
It is possible to allow the “switch” object to turn off the relay before the time has elapsed
by enabling the parameter “Possibility to switch off the relay”. See Figure 16
Figure 16 – Default parameters for the staircase function