User Manual

Automation stations
Device object
18
226 | 353 CM110664en_07
Values read in cycle 1 are processed in cycle 2. Output values calculated in
cycle 1 are transferred to the peripherals in cycle 2.
18.1 Device object
Each automation station contains a device object. The device object:
● Contains the device and system information for the automation station
● Is based on the standard BACnet object as defined in the BACnet standard,
and contains additional proprietary properties
● Is always present and is set up in the automation station with initial values
● Is not programmed in the CFC Editor as a function block and is not loaded
with the program
You can monitor property values through a BACnet client (e.g., Desigo CC,
XWP). You can change default values. You cannot read changed values back
into Xworks Plus (XWP). When an automation station is replaced, you must
reenter any changes made to property values.
The serial number in the row
Serial number SN=150120C61487 consists of:
● 15 = Year
● 01 = Month
● 20 = Day
Process image
buffer
Read Write
I/O scan
AI AO
Frozen values
Current values