The following table describes the attributes used by the Occupied Sequencing (Single Device) modules:
|
Name |
Description |
Default Value |
|---|---|---|
|
Control Status |
Value fed back from the output controller PID. This is needed for the sequencer to determine what actions to take. |
Normal Set Name: Control Status |
|
Fan Ready |
Comes from the Start/Stop Sequencer, and indicates that the fans and dampers have been sequenced properly. This input must not be connected in a zone control system; it is only for a discharge air control system. |
True |
|
Fast Sequence Enabled |
Indicates if a change to a Satisfied state should occur if a setpoint changes as described in the Setpoint Threshold input. |
False |
|
HC-STATE, HD-STATE, or PH-STATE (State) |
Current state generated by the sequence. |
Satisfied |
|
Heating Device |
Used to tell the state machine if the module is a heating sequencer or a cooling sequencer. When this input is set True, the state machine is a heating sequencer, and when the input is set False, the state machine is a cooling sequencer. |
False |
|
Process Variable |
Value that is compared to the setpoint and used to determine whether it is necessary to heat or cool. |
13 °C, 55 °F |
|
Setpoint |
Contains the desired setpoint for the process variable to be controlled towards. |
13 °C, 55 °F |
|
Setpoint Threshold |
Indicates how much the setpoint must change to cause a state transition to a Satisfied state from the T Control state. |
1 °C, 2 °F |