Occupied period
The datapoint connected to the input "Occ_Period_MSt" has to be assigned to a time schedule.
can gave the following states:
To override the air handling unit from a BMS system or an external controller like a remote EAGLE or Hawk, the macro provides the input "Occ_External_MSt".
This point has the same states as the time schedule described above:
Attention: The values of the inputs "Occ_Period_MSt" and "Occ_External_MSt" start form 1 since they should be connected to multi state points. BACnet multi state points do not support "0" values".
The wall module the highest priority for fan overrides. It has the same th4 sates as the time program and the input "Occ_External_MSt" - see next chapter "Manual switch condition"
The effective manual switch condition is available as an output "EffManSwCond" for other macros like fans, duct static pressure or air flow control.
Considering that the manual override input from the wall module" RSA_AHUManSwitchNordic" has the same states, the three plant mode signals will have the priorities defined in the next table.
The outputs EffManSwCond and EffManSwCond_MSt contain the prioritized states of the time schedule the external override and the wall module override. These outputs shall be connected to other macros with manual switch condition inputs like fans:
Priority |
Source |
EffManSwCond |
EffManSwCond_MSt |
PlantMode |
ManSwMode_MSt |
Comments |
highest |
wall module |
0 = off |
1 = off |
0 = off |
2 = wall modules |
|
1 = on-low, |
2 = on-low, |
4 = on-low |
2 = wall module |
|||
2 = on-high |
3 = on-high |
4 = on-high |
2 = wall module |
|||
3 = auto |
4 = auto |
4 = auto |
4 = auto |
enables lower priorities |
||
second |
external override "Occ_External_MSt" |
0 = off |
1 = off |
0 = off |
3 = external |
|
1 = on-low |
2 = on-low, |
4 = on-low |
3 = external |
|||
2 = on-high |
3 = on-high |
4 = on-high |
3 = external |
|||
3 = auto |
4 = auto |
4 = auto |
4 = auto |
enables time schedule |
||
lowest |
"Occ_Period_MSt" assigned to the time schedule |
0 = off |
1 = off |
0 = off |
4 = auto |
|
1 = on-low, |
2 = on-low, |
4 = on-low |
4 = auto |
|||
2 = on-high |
3 = on-high |
4 = on-high |
4 = auto |
|||
3 = auto |
4 = auto |
4 = auto |
4 = auto |
WARNING: If you need one of the functions:
be sure, that the optimization flag of the input "Occ_Period_MSt" is enabled within the controller time schedule.
Try - if you cannot replace this with the time to next switch point !!!