S7999B SYSTEM DISPLAY
65-0283—2
18
No title is displayed on this page unless specified in User
Preferences. The custom title entered by the user is displayed
on the page when selected by the user.
A burner or boiler icon displays on the page designating which
type of system it represents. The user chooses which type of
system it is in User Preferences.
If the following screen (Fig. 16) appears, then no R7999 and
no burner systems are seen by the S7999B. Check for proper
wiring connections and make necessary corrections.
Fig. 16. Home Page—disconnected.
Local S7999B Home Page
Below each UDC controller icon one key status variable can
be selected for display.
Fig. 17. Local S7999B Home Page.
The table below lists the possible selections the user can
choose for display.
Each UDC controller icon is a button that the user selects to
advance to a status page that displays information about just
the UDC controller selected. Information displayed varies by
controller type.
Up to 5 UDC controllers can display on the page at one time.
If the Local burner/boiler system has more than 5 UDC
controllers, then a “More” button displays on the page that
allows the user to select which UDC controller to see more
status for (advance to UDC controller status page).
When the COM 1 port on the Local S7999B is configured for
ControLinks™ commissioning, the Fuel/Air Ratio Control
(R7999) and actuator buttons are present on the page when
the port is connected to the R7999 or when the R7999 is
connected to the S7810M.
When the R7999 is connected to the COM 1 port in this
configuration, it is considered to be a component of the Local
burner/boiler system. The R7999 and actuators are displayed
on the page in the same manner as when the R7999 is
connected to the S7810M ControlBus except for the following:
• All 4 actuators may be displayed when the R7999 isn't
commissioned yet and two fuel actuators exist. One fewer
UDC controller button is displayed in this case.
• Commission button displays on the page to allow R7999
commissioning.
An R7999 connected to the S7810M ControlBus supersedes
an R7999 connected to the COM 1 port in case two R7999’s
are detected in the same Local burner/boiler system. Status of
the R7999 attached to the COM 1 port is ignored until the
other R7999 is disconnected from the S7810M ControlBus.
Table 2. Local S7999B Home Page Status Variables
UDC controller
Status variable
Stack Temperature controller Current temperature
Stack Temperature controller High/Low temperature alarm
Stack Temperature controller FGR permissive alarm
PID Load controller
Current water temperature
PID Load controller
Current steam pressure
PID Load controller
Low Fire Hold alarm
Feed Pump Level controller
Current vessel level
Feed Pump Level controller
High water alarm
Steam/Fuel Flow Monitor
Current steam flow
Steam/Fuel Flow Monitor
Current gas flow
Steam/Fuel Flow Monitor
Current fuel oil flow
Thermal Shock controller
Current water supply
temperature
Thermal Shock controller
Optimal temperature alarm
