Networking Options - Honeywell S7999D1048 Manual

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.
UP TO 99
BURNER/BOILER
SYSTEMS
S7810M
MODBUS
MASTER
SYSTEM DISPLAY
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.
1
S7800
RM78xx
SLAVE
BURNER
CONTROL
SLAVE
S7810M
MODBUS CONTROL
2
SLAVE
S7810M
MODBUS CONTROL
COM 1 or COM 2
S7999D
COM 1 or COM 2
1 S7800 KEYBOARD DISPLAY CONFIGURED FOR MODBUS.
2 MODBUS BAUD RATE MUST BE SET FOR EITHER 9600 OR 19200 FOR THE S7810M AND THE
S7800 CONFIGURED FOR MODBUS MODE.
3 F/A Ratio Control BAUD RATE IS 4800.
4 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.
Fig. 2. Example for commissioning the Fuel/Air Ratio Control.
S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
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).
RM78xx S7830
BURNER EXPANDED
ANNUNCIATOR RATIO CONTROL
RM78xx S7830
BURNER EXPANDED
ANNUNCIATOR
CONTROLBUS
3
FCI
RATIO CONTROL
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.
5
4
R7999
FUEL AIR
CONTROLBUS
R7999
FUEL AIR
M33553
65-0321—01