4
MODBUS Installation and Operation Manual
HT# 059266-00A
HWr PlaTInUM MODBUS VarIaBle lIST
HWr reg /
VarIaBle#
DeSCrIPTIOn
MUlT
(if not 1)
UOM
range / STaTeS / SPeCIal
ValUeS
reaD
Only
1 – 3
Model
6 Character string
X
4 – 13
Serial Number
X
14
Firmware Version
100
X
15
Burner Differential
°C, °F
0 - 8°C, 0 - 15°F
16
Boost Offset
°C, °F
0 - 33°C, 0 - 60°F
17
Boost Mode
0=Off, 1=Vari Boost,
2=Vari-Boost + ESD
18,19
Bypass Time(4)
Minutes
X
20
Burner
0=Off, 1=On
X
21
Bypass Mode
0=Auto, 1=Valve Close,
2=Valve Open / Bypass
22
Outdoor Cutoff
°C, °F
0 - 25°C, 30 - 75°F
23
DHW Call Mode
0=No Priority, 1= Priority
24
Day Light Saving
0=Enable, 1=Disable
25
Sensor Fault Mode
0=Output On, 1=Output Off
26
Fast Cool Down
0=Minimum Water Temp, 1=Off
27
Sensor Type
0=°F, 1=°C
28
Minimum Water Temp
°C, °F
21 - 71°C, 70 - 170°F
29
Outdoor Sensor
°C, °F
-40 - +122°C, -40 - +250°F
X
30
Outdoor Sensor Trim
°C, °F
-3 - +3°C, -5 - +5°F
31
Offset Temperature
°C, °F
-22 - +22°C, -40 - +40°F
32
Output Mode
0=Burner, 1=Motorized Valve
33
Panel Date
Days since
1/1/1981
0 - 36500
34
Pump Run-On
Minutes
0 - 60
35
Panel Time
Minutes since
0:00
0 - 1439, 1440=not set
36
Pump
0=Off, 1=On
X
37
Reset Ratio
0=1:3, 1=1:2, 2=1:1 .5, 3=1:1 .25,
4=1:1, 5=1 .25:1, 6=1 .5:1, 7=2:1,
8=3:1, 9=4:1
38 through 93
Day/Night Schedules
Minutes since
0:00
0 - 1439, 1440=empty schedule
94
Season
0=Winter, 1=Summer
95
Night Setback Temp
°C, °F
-44 - 0°C, -80 – 0°F
96
Day Night Shift
0=ToDay, 1=ToNight,
2=ExtendDay, 3= Resync
97
System Sensor
°C, °F
-40 - +122°C, -40 - +250°F
X
98
System Sensor Trim
°C, °F
-3 - +3°C, -5 - +5°F
99
Calculated Target
°C, °F
0 - 116°C, 0 – 240°F
X
100
Motorized Valve
0=Inactive, 1=Closing,
2=Opening
X
101
Max Target Temp
°C, °F
32 – 116°C, 90 – 240°F