Table of Contents
Advertisement
CNT-SVP01C-EN
Synchronizing time with Tracer Summit
Time synchronization of the Tracer MP580/581 controller with the Tracer
Summit building automation system occurs automatically once a day or
when the controller is powered up. The controller must be successfully
communicating for the synchronization to occur.
Controlling the occupancy mode of the
Tracer MP580/581
The occupancy mode of the Tracer MP580/581 controller can be controlled
by the Schedule application, the operator display, a Rover service tool
override, and the Tracer Summit system. Because there are several
sources of control, there is an implied priority table. Table 2 on page 62 is
a diagram of the priority list.
The highest priority is given to a request from the operator display or the
Rover service tool. Both sources have the same priority level. The next
highest priority is the building automation system (BAS), often the
Tracer Summit system. The BAS request is initiated as long as all over-
rides from the operator display or Rover service tool have been released.
Third on the list of priorities is the Tracer MP580/581 Schedule applica-
tion local schedule.
The local schedule is used only if valid times are entered in the schedule
table, and one of the following criteria is met.
The controller is connected to an operator display (non-portable).
•
•
Fifteen minutes have passed since the BAS lost communications.
•
No overrides are present from the operator display or the Rover ser-
vice tool.
If there are no times entered in the schedule table and no schedule
request is available, the fourth and fifth items in the priority list are the
communicated occupancy sensor and the local occupancy sensor, respec-
tively. The default to occupied is the lowest on the list of priorities. If
nothing is controlling the device, the controller remains in occupied mode.
Manual command
If an occupancy override is requested, the occupancy information is com-
municated to the Tracer MP580/581 from the variable nviOccManCmd or
as an override from the operator display or Rover service tool. This man-
ual command takes priority over any other occupancy request. If the oper-
ator display is unplugged with an active override, the occupancy request
remains in the override state. There is no time out, just as with nviOcc-
ManCmd.
If power is lost, the operator display override value is stored in EEPROM
and is restored when power returns. This is not the same as nviOcc-
ManCmd. The value of nviOccManCmd is lost when power is lost and is
Null when power returns.
Synchronizing time with Tracer Summit
59
Hide quick links:
Advertisement
Table of Contents
