Operating Mode Of Clock - ABB i-bus EIB Product Manual

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ABB i-bus EIB / KNX
3.4.1.1

Operating mode of clock

© 2006 ABB STOTZ-KONTAKT GmbH
Commissioning
Fig. 35: Parameter window: "General, Operating mode of clock"
Operating mode of clock
Options: internal/
Slave (always receive)/
Slave disable time (00:05 ... 23:55 receive)/
Master (send every minute)/
Master (send hourly)/
Master (send daily)
How does the internal clock work?
In the Application Unit Time, an internal clock controls the time switch
program. The clock is supplied with bus voltage. In the event of a bus
voltage failure, the internal clock has a power reserve of at least 1 h. In the
event of a bus voltage recovery within the reserve period, the time switch
program starts again automatically. Once the power reserve has elapsed,
the current date and time are lost and the time switch program is stopped
until the date and time are reset.
The clock can be set automatically through a telegram from a master clock
or the clock must be set via the application program or using the
parameterisation software PZM2.
The time switch program is updated by adjusting the clock.
Switching operations can be triggered as a result.
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