ABB i-bus
®
KNX
Parameters
ABA/S 1.2.1 | 2CDC509086D0201 73
Function
• Input receives a 1 (true):
o Output = 1 (true)
o Timer restarts
• Input receives a 0 (false):
o Output = 0 (false)
o Timer stops
• If the timer reaches the On-time:
o Output = 0 (false)
o Timer stops
• Retrigger:
• If Retrigger = 1 (true):
o When the input receives a 1 the timer restarts
• If Retrigger = 0 (false):
o If the timer is running and the input receives a 1 (true) it ignores it. The timer continues running.
Exception handling
• If the On-time input is unlinked, the element uses 00:00:30.
• If the On-time input is negative, the element uses 00:00:00.
• If the On-time input has a value of 00:00:00, the output is always 0.
Bus voltage failure, download and restart
The internal timer value is saved. This value is restored on restart.