The relationship between the Present Value of an object and the physical state of the object is determined by the Polarity attribute.
Note: The table below describes this relationship as defined by BACnet standards. Johnson Controls Polarity is always Normal. Johnson Controls does not support changes to the Polarity attribute.
|
Present Value |
Polarity |
Physical State of the Hardware Input |
Physical State of the Monitored Device |
|---|---|---|---|
|
Inactive |
Normal |
Off or Inactive |
not running |
|
Active |
Normal |
On or Active |
running |
|
Inactive |
Reverse |
On or Active |
not running |
|
Active |
Reverse |
Off or Inactive |
running |