Installation / Operation Instruction Manual

Table Of Contents
Page 41
0
S16
Read Inlet Sensor AI 0 Read
1 S16 Read Outlet Sensor AI 1 Read
2 S16 Read Flue Sensor AI 2 Read
3 S16 Read DHW Sensor AI 3 Read
4 S16 Read System Inlet Sensor AI 4 Read
5 S16 Read System Outlet Sensor AI 5 Read
6 S16 Read Outdoor Sensor AI 6 Read
12 S16 Read Flame Signal 1 AI 12 Read
14 S16 Read 0-10VDC (4-20mA) Input for BMS AI 14 Read
17 S16 Read 0-10VDC (4-20mA) Input for Blower Speed AI 17 Read
bit0 = Flow Switch
bit1 = LWCO
bit2 = MRHL
bit3 = Blocked Flue
bit4 = High Gas Pressure
bit5 = Low Gas Pressure
bit6 = Field Interlock
bit7 = ARHL
bit0 = Field Input 1
bit1 = Field Input 2
0=None
1=Anti-Short Cycle
2=Service
3=DHW
4=Cascade
5=External
6=CH1
7=CH2
10=Anti-Frost
11=Warm weather shutdown
bit0 = Run contact
bit1 = Alarm Contact
bit2 = DHW Pump
bit3 = System Pump
bit4 = Louver contact
bit5 = Aux dry contact 1
bit6 = Aux dry contact 2
bit7 = Boiler pump
bit8 = Aux powered contact
bit 0 = Burner 1 Pilot Gas valve
bit 1 = Burner 1 Gas valve 1
23 S16 Read 0-10VDC (4-20mA) Output for Pump Speed AI 23 Read
24 S16 Read 0-10VDC (4-20mA) Output for Fan Speed AI 24 Read
27 S16 Read Modulating Fan 1 - Speed AI 27 Read
33 S16 Read Modulating Burner1 Firing rate AI 33 Read
FLOW SWITCH = 0
LOW WATER CUT OFF ERROR = 1
MANUAL RESET HIGH LIMIT = 2
PRESSURE SWITCH = 3
HIGH GAS PRESSURE SWITCH = 4
LOW GAS PRESSURE SWITCH = 5
FIELD INTERLOCK = 6
SPARE SAFETY CHAIN = 7
OUTLET PROBE LOCKOUT = 8
OUTLET PROBE DRIFT = 9
OUTLET PROBE HIGH LIMIT = 10
FLUE PROBE LOCKOUT = 11
FLUE PROBE DRIFT = 13
FLUE PROBE HIGH LIMIT = 14
INLET PROBE LOCKOUT = 15
DELTA-T = 16
GENERIC LOCKOUT = 17
BURNER APS LOCKOUT = 18
BURNER PARASITIC FLAME = 20
BURNER MAX IGNITION ATTEMPTS = 22
BURNER MAX FLAME LOSS = 24
NO LOCKOUT = 255
24 VDC ERROR = 30
24 VAC ERROR = 31
DHW PROBE ERROR = 32
SYSTEM SUPPLY PROBE ERROR = 33
SYSTEM RETURN PROBE ERROR = 34
OUTDOOR PROBE ERROR = 35
HIGH LIMIT AUTO ERROR = 41
HIGH DELTA-T ERROR = 42
FAN SPEED ERROR = 43
38 U16 Read History - DHW Demand Cycles AI 38 Read
39 U16 Read History - CH1 Demand Cycles AI 39 Read
40 U16 Read History - CH2 Demand Cycles AI 40 Read
43 U16 Read History - Cascade Demand Cycles AI 43 Read
44 U16 Read History - Burner Stage 1 Cycles AI 44 Read
36 S16 Read
35 S16 Read
ReadS1621
ReadS1622
19 S16 Read
20 S16 Read
Modbus
Address
Type
R/W
18 S16 Read Safety Chain Status
Non-safety Chain Status
Demand Source
Gas and Pilot Valve Status AI 22
AI 20
Error Code AI 36 Read
Lockout code AI 35 Read
Read
Digital Output Status AI 21 Read
Read
AI 19 Read
AI 18 Read
Notes
Map Descriptor Name
BACnet
Data Type
BACnet
Object ID
Read/Write
7.E Modbus and BACnet Memory Map