Page 233 - Advanced Course

KNX ADVANCED COURSE

2.1.3.3 OR Function with Staircase Lighting Function and Maintained Lighting

Telegram

1 1

1 1 < ta > 1 < ta >

Switch object < ta > < ta > < ta >

Logic object 1 0

1 0 1 0 1 0

Output

Figure 7: OR function with staircase lighting function and maintained lighting

Case 1: The ON signals of the switch object start the OFF delay. The output switches
off once the set delay period has elapsed. An OFF signal is not required. If an
OFF signal is however sent to the switch object, the output is switched off
directly.
Case 2: The ON signals of the switch object start the OFF delay. If another ON signal
is sent to the switch object before the delay has elapsed, the OFF period is
restarted (automatic reset).
Case 3: The ON signals of the switch object start the OFF delay. The ON signal in the
logic object switches the output on permanently (maintained lighting function
for staircase lighting).
If the OFF signal of the logic object is sent before the set OFF period has
elapsed, the output is switched off after the remaining time of the OFF delay
has expired.

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