S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
5
65-0321—01
NETWORKING OPTIONS
The S7999D has two communication ports (COM1, COM2)
that can be set for:
• Fuel/Air Ration Control only (Commission)
• One or more boiler systems
• Local display to a System Monitor
• System Monitor to one or more Local displays
• Gateway for Modbus master
• Disable port (NOT USED)
One of these COM port settings is selected for the S7999D in
the Display Setup page. The COM port setup determines the
role and scope that this S7999D has in the system.
COMMISSIONING THE FUEL/AIR RATIO CONTROL
In this setup one of the COM ports is set for Fuel/Air Ratio
Control only (commission)
NOTE: The port baud rate must be set for 4800.
The other COM port has several options or can be disabled. In
the example below, the other COM port has been set up for
one or more boiler system. (See Fig. 2 & 3 for examples).
Fig. 2. Example for commissioning the Fuel/Air Ratio Control.
The S7999D can connect directly to the R7999 from the COM
port that has been set up for Fuel/Air Ratio Control only
(commission); baud rate set to 4800, using the cable and
installation procedures specified in the R7999 Product Data
Sheet. The R7999 can remain connected to to this COM port
following commissioning.
The Modbus™ network on the COM port setup for One or
more boiler systems (ensure the port baud rate matches the
ModBus baud rate and the port Modbus addressing range
covers the range of addresses of the Modbus devices on the
network) consists of wiring the S7810M devices together as
slaves to the S7999D. An S7810M device is required for each
burner/boiler system. Up to 99 burner/boiler systems can be
connected in this configuration (unless other slave devices are
included in the Modbus™ wiring). Fig. 3 depicts this wiring.
S7810M
MODBUS
RM78xx
BURNER
CONTROL
S7830
EXPANDED
ANNUNCIATOR
R7999
FUEL AIR
RATIO CONTROL
R7999
FUEL AIR
RATIO CONTROL
S7830
EXPANDED
ANNUNCIATOR
RM78xx
BURNER
CONTROL
RM78xx
BURNER
CONTROL
S7800
S7810M
MODBUS
S7999D
SYSTEM DISPLAY
CONTROLBUS
FCI
M33553
COM 1 or COM 2
COM 1 or COM 2
MASTER
SLAVE
S7810M
MODBUS
CONTROLBUS
SLAVE
SLAVE
UP TO 99
BURNER/BOILER
SYSTEMS
S7800 KEYBOARD DISPLAY CONFIGURED FOR MODBUS.
1
MODBUS BAUD RATE MUST BE SET FOR EITHER 9600 OR 19200 FOR THE S7810M AND THE
S7800 CONFIGURED FOR MODBUS MODE.
2
F/A Ratio Control BAUD RATE IS 4800.
3
THE R7999 F/A Ratio Control CONNECTED THROUGH THE S7810M MODBUS CAN BE MONITORED
BY THE S7999 DISPLAY, BUT IT CANNOT BE COMMISSIONED IN THIS LOCATION.
4
1
3
4
2
Summary of Contents for S7999D1048
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