S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
7
65-0321—01
Fig. 4. Example for One or more boiler systems.
UDC controllers may be added to the Modbus network (see
Fig. 4). The UDC controllers share the Modbus™ with the
S7810M devices, so the total number of burner/boiler systems
is reduced by the number of UDC controllers on the network. A
combined total of 99 devices are permitted on the Modbus™
network. Wiring for this configuration is shown in Fig. 5.
S7810M
MODBUS
RM78xx
BURNER
CONTROL
S7830
EXPANDED
ANNUNCIATOR
R7999
FUEL AIR
RATIO CONTROL
S7830
EXPANDED
ANNUNCIATOR
RM78xx
BURNER
CONTROL
UDC2500
THERMAL
SHOCK
S7810M
MODBUS
S7999D
SYSTEM DISPLAY
CONTROLBUS
M33555
COM 1 or COM 2
MASTER
SLAVE
S7810M
MODBUS
UP TO 99
BURNER/BOILER
SYSTEMS AND
UDC CONTROLLERS
CONTROLBUS
SLAVE
SLAVE
UDC2500
PID LOAD
CONTROL
SLAVE
UDC2500
STEAM/FUEL
FLOW
SLAVE
SLAVE
RM78xx
BURNER
CONTROL
S7800
1
S7800 KEYBOARD DISPLAY CONFIGURED FOR MODBUS.
1
MODBUS BAUD RATE MUST BE SET FOR FOR EITHER 9600 OR 19200 BAUD RATE.
2
2
Summary of Contents for S7999D1048
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