8 Operating behavior
8.1 Failure of supply voltage
In case of a complete power supply failure a Reset is triggered. All lined-up
modules are also set into reset-status and all outputs are switched off.
Data in the battery-buffered SRAM remain intact and the real-time clock con-
tinues to run.
8.2 Response to module errors
In case an error occurs, this error will be displayed on the diagnosis display on
the front side of the CP 263/x.
Further information: See system manual.
8.3 Watchdog
● The CPU watchdog runs independent from the IO watchdog. After the CPU
watchdog responds, all data will be saved, all device outputs switched off
and then the device is reset.
● The K-Bus watchdog causes a K-Bus reset and the outputs of the K-Bus
module will be disabled.
Operating behavior CP 263/S, CP 263/X
© KEBA 2014
Project engineering manual V1.0132
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