Udc Controller Application - Honeywell S7999D1048 Manual

S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
R7999 OUTPUTS AND INPUTS
The current state of the R7999 outputs and inputs are displayed on the Monitor screen for convenience and diagnostics purposes.
The inputs and outputs are defined as follows:
Abbreviation Description
LCO Limit Control Output
HFP High Fire Proved
LFP Low Fire Proved
Fuel 1 Fuel Select Channel 1 Fuel 1 is selected.
Fuel 2 Fuel Select Channel 2 Fuel 2 is selected.
ALM Alarm
Abbreviation Description
LCI Limit Control Input
HF High Fire Input
LF Low Fire Input
MV Main Valve Input

UDC CONTROLLER APPLICATION

UDC Controller Interface
The UDC controllers interface to the S7999D via the COM 2 port. The following interface requirements must be specified in the
Communications group of the UDC controller.
Parameter
ComADR 10-19=Stack Temperature
20-29=Water Temperature PID Load Control
30-39=Steam Pressure PID Load Control
40-49=Feed Pump/Level Control
50-59=Steam/Gas Flow Monitor
60-69=Steam/Fuel Oil Flow Monitor
70-79=Thermal Shock
COMSTA MODB
IRENAB ENAB
BAUD 19.2K
TX_DLY 1
WS_FLT FP B
SDENAB DIS
UNITS EGR
CSRATIO 1
CSP BI 0
LOOPBK DIS
The Modbus™ address setting in ComADR determines the
UDC controller application type. Careful assignment of
Modbus™ addresses to UDC controllers and S7810M devices
is necessary so that duplicate addresses aren't used.
The following application notes describe how the UDC
controller is configured to perform different functions in a
burner/boiler system. Using the UDC controller models and
recommended sensor types for each application is critical to
65-0321—01
Table 8. Outputs.
Limits are satisfied and demand exits. The R7999 is operational and able to move all
actuators.
The R7999 has moved the actuators to the Purge position.
The R7999 has moved the actuators to the Lightoff position.
The system is in an alarm state.
Table 9. Inputs.
Limits are satisfied and demand is present.
R7999 is being commanded to drive actuators to the Purge position.
R7999 is being commanded to drive actuators to the Lightoff position
The main valve input is active. Normally only active during "Run," and transitional with LF
during lightoff.
Table 10. UDC Controller Communication Interface .
Setting
58
Meaning when ON
Meaning when ON
Modbus™ slave address
Modbus™ communication
Enable infrared communication port
19200 bps
Response delay = 1 ms
Floating point data order
Disable shed functionality
Data specified in engineering units
Computer setpoint ratio
Disable loopback test
the success of the application. These application notes only
provide an introduction to the setup needed. More detailed
information for UDC controller setup should be obtained from
the appropriate UDC documentation (see Installing the
Hardware).
UDC controller parameters applicable for each application are
listed, and recommended settings for typical variants of the
application are provided.
Comment