Technical data

300 • List of all BACnet Properties in Native Operation
Present_Value
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
Binary Output:
For this object, the property of the type BACnetBinaryPV
indicates the logical state of the Binary Output. The logical
state of the output is either INACTIVE or ACTIVE. The re-
lationship between the Present_Value and the physical state
of the output is determined by the Polarity property. Possi-
ble states are summarized in Tab. 6-9.
Tab. 6-9: Interrelationships for BACnet Polarity (Binary Output)
Present_Value Polarity Physical state of
the output
Physical state of
device
INACTIVE NORMAL OFF or INACTIVE Not in operation
ACTIVE NORMAL ON or ACTIVE In operation
INACTIVE REVERSE ON or ACTIVE Not in operation
ACTIVE REVERSE OFF or INACTIVE In operation
Analog Input:
This property, of the type REAL, indicates the current value,
in engineering units, of the input being measured. The Pre-
sent_Value property must be writable when Out_Of_Service
is TRUE.
Analog output:
This property, of type REAL, indicates the current value, in
engineering units, of the output.
Schedule:
This property indicates the current value of the schedule.
This can be any primitive data type. As a result, most ana-
log, binary, and enumerated values may be used. This prop-
erty must be writable when Out_Of_Service is TRUE (see
section 6.56, "Out_of_Service").
Any change in the value of this property shall be written to
all members of the List_Of_Object_Property_References
property. An error writing to any member of the list shall
not stop the Schedule object from writing to the remaining
members.