WAGO 750-830, Руководство пользователя

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List of all BACnet Properties in Native Operation • 285
Device_Type
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
may be empty if no device identifier-device address bind-
ings are currently known to the device.
6.20 Device_Type
Data Type CharacterString
Objects Binary Input, Binary Output, Analog Input, Analog Output
Description This property, of type CharacterString, is a text description
of the physical device connected to a binary input, binary
output, analog input or analog output. It will typically be
used to describe the type of device attached to this in-
put/output.
6.21 Effective_Period
Data Type BACnetDateRange
Objects Scheduler
Description This property specifies the range of dates within which the
Schedule object is active. Seasonal scheduling may be
achieved by defining several Schedule Objects with non-
overlapping Effective_Periods to control the same property
references. Upon entering its effective period, the object cal-
culates its Present_Value and returns this value to all mem-
bers of the List_Of_Object_Property_References property.
An error writing to any member of the list does not stop the
Schedule Object from writing to the remaining members.
6.22 Elapsed_Active_Time
Data Type Unsigned32
Objects Binary input, Binary output
Description This property, of type Unsigned32, represents the accumu-
lated number of seconds that the Present_Value property has
had the value ACTIVE since the Elapsed_Active_Time
property was most recently set to a zero value.