WindO/I-NV4 User’s Manual 3-141
7 BACnet Communication
3
Communication
Binary Input Object
Present_Value of the Binary Input object can be set to a fixed value or allocated to a bit device address and set to the
value of that bit device.
The following diagram illustrates the concept when an external input is allocated to Present_Value of the Binary Input
object and the BACnet device reads out the state of the external input.
The following table shows Present_Value, Polarity, and the physical state of the input.
Present_Value Polarity Physical State of Input
INACTIVE NORMAL OFF or INACTIVE
ACTIVE NORMAL ON or ACTIVE
INACTIVE REVERSE ON or ACTIVE
ACTIVE REVERSE OFF or INACTIVE
BACnet objects
BACnet device
Device addresses Physical input
Binary Input
object
Present_Value:
1
#I0030: 1
DC Input:
24 V
Reflected
IN 0: ON
Read value:
1
MICRO/I Digital input module
Read from BACnet device Write value of device address
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