Honeywell S7999D1048, Manual

Page: 9 / 76

S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
9 65-0321—01
Fig. 6 depicts the configuration when this S7999D is a subsystem of the System Modbus™ burner system network.
Fig. 6. Local S7999D with connection to System Modbus™ network.
In this configuration, the Local S7999D is a Modbus™ slave to
the S7999D that has the system view perspective (System
S7999D). Data about the local burner system is made available
to the System S7999D when it accesses the interface registers
in the Local S7999D.
The Local S7999D automatically detects UDC controllers
connected to its network and displays them on the Home page
as they are found. No user involvement is necessary at the
S7999D to make the UDC controller visible to it.
The application type or function of the UDC controller is
automatically determined by the Local S7999D.
Each Local burner/boiler system can be designated as either a
burner system or a boiler system. This designation is specified
in the Local S7999D. Each system can also be named. This
system (equipment) name is displayed on the Home page. You
can quickly search for the S7810M and UDC controllers on the
Local Modbus™ network.
Fig. 7. Local S7999D with connection to System Modbus™ network wiring.
S7810M
MODBUS
RM78xx
BURNER
CONTROL
S7830
EXPANDED
ANNUNCIATOR
R7999
FUEL AIR
RATIO CONTROL
UDC2500
THERMAL
SHOCK
S7999D
SYSTEM DISPLAY
COM 1 OR
COM 2
M33562B
S7999D
SYSTEM DISPLAY
COM 1 OR
COM 2
SYSTEM S7999D
LOCAL S7999D
SYSTEM
MODBUS
COM 1 OR
COM 2
MASTER
MASTER
SLAVE
SLAVE
LOCAL
MODBUS
CONTROLBUS
SLAVE
UDC2500
STACK
TEMPERATURE UDC2500
FEED PUMP
LEVEL CONTROL
SLAVE
UDC2500
PID LOAD
CONTROL
SLAVE
UDC2500
STEAM/FUEL
FLOW
SLAVE
SLAVE
2
1
MODBUS BAUD RATE MUST BE SET FOR EITHER 9600 OR 19200. 1
ANY MODBUS BAUD RATE CAN BE USED; HOWEVER THE SELECTED BAUD RATES MUST MATCH. 2
UDC2500
STACK
TEMPERATURE
UP TO A TOTAL OF 99 S7810M AND UDC CONTROLLERS CAN BE CONNECTED TO
THE S7999D. SEE 65-0249 AND UDC MANUALS FOR WIRING.
M33563
A B C A B C COM POWER
LOCAL S7999D
3
“C” TERMINALS ARE CONNECTED INTERNALLY TO 24 VAC “COM”. 3
4
MODBUS BAUD RATE MUST BE SET FOR 19200 (COM2) AND 4800 (COM1). 5
MAKE SURE 24 VAC POWER SUPPLY TO EACH S7999D ARE CONNECTED IN PHASE
(OBSERVE TRANSFORMER PRIMARY AND SECONDARY WINDING POLARITIES).
6 120 Ω , 1/4 WATT RESISTOR BETWEEN TERMINALS A AND B OF THE MODBUS AT
THE FARTHEST S7810M MAY BE NECESSARY FOR LONG RS-485 RUNS.
7
CONNECT SHIELD TO EARTH GROUND. 1
SEE 65-0249 FOR CONTROL BUS (LOCAL RS-485 COMMUNICATION BUS) WIRING. 2
1
COM 1 COM 2 24 VAC
3
S7810M
MODBUS
MODULE
B
A
C
8
7
6
2
4
D-
D+
SHLD 16
17
18
5 7
A B C A B C COM POWER
SYSTEM S7999D
3
COM 1 COM 2 24 VAC
3 7 7