heat-timer MODBUS RTU RS485 Installation And Operation Manual page 12

MPCQ reg /
DeSCrIPTIOn
VarIaBle#
162 Outdoor Night Cutoff
163 Outdoor Sensor
164 Outdoor Sensor Trim
165 Operation Mode
166 Panel Date
167 Pressure Sensor Trim
168 Panel Time
169 Purge Delay
170 Reaction Time
171 Lead Stage Rotation Mode
172 Periodic Rotation Interval
173 through 228 Day/Night Schedules
229 Season
230 Sequence
231 Night Setback Temp
232 Set Point
233 Day/Night Shift
234 Standby Delay
235 System Pressure Sensor
236 System Run-on
237 System Relay
238 Throttle Range
239 Heat Establish Pressure
MPCQ Platinum Boiler Type Table
Boiler Type LEAD – Special value (Up to Total Boilers – 1)
0 0 – 31 ► 'A', 'B', 'C', ..., 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f'
1 0 – 15 ► 'AB', 'CD', 'EF', ..., 'WX', 'YZ', 'ab', 'cd', 'ef'
2 0 – 9 ► 'ABC', 'DEF', 'GHI', ..., 'STU', 'VWX', 'abc', 'def'
0 – 7 ► 'ABCD', 'EFGH', 'IJKL', 'MNOP', 'QRST', 'UVWX', 'abcd', 'efgh'
3
MPCQ Platinum notes
♦1 If specified, divide a read value by this to obtain the actual value – Multiply desired value by this before writing .
♦2 For variables that specify them, if a read value is a special value (32000 - 32005), do not divide by 'MULT' .
♦3 Strings are packed 2 characters per register, most significant byte first .
♦4 Multi-register values are stored big endian (first register x 65536 + second register = value) .
note: All variables are stored as 'Holding Registers' . MODBUS functions :
• 'Read Holding Registers' (function code 3),
• 'Write Single Register' (function code 6),
• and 'Write Multiple Registers' (function code 16) are supported .
note: All variables with multiple UOM's depend upon the value of 'Input Mode' to determine which to use .
note: Use 'Burner Differential' and 'Burner' when 'Output Mode' is set to Burner .
Use 'Valve' when 'Output Mode' is set to Motorized Valve .
12
♦1
MUlT
UOM
(if not 1)
°C, °F
°C, °F
°C, °F
Days since
1/1/1981
10 psi
Minutes
since 0:00
2 Minutes
Minutes
Hours
Minutes
since 0:00
10 psi
10 psi
Minutes
10 psi
Minutes
2 psi
10 psi
MODBUS Installation and Operation Manual
range / STaTeS / SPeCIal
ValUeS
-6 – 38°C, 20 – 100°F
-40 – 122°C, -40 – +250°F
(32000=Open, 32001=Shorted)
-3 – +3°C, -5 – +5°F
0=Cycle, 1=Set Point
0 – 36500
-3 .0 – +3 .0
0 – 1439, 1440=not set
0 – 10
1 – 10
0=Time
1 – 999
0 – 1439, 1440=not set
0=Winter, 1=Summer
0=Lo/Hi/Lo/Hi1=Lo/Lo/Hi/Hi
-10 .0 – 0 .0
0 .0 – 30 .0
0=To-Day, 1=To-Night,
2=Extend-Day,
1 – 60
-5 .0 – +35 .0
(32000=Open,32001=Shorted)
0 – 60
0=Off, 1=On
0 .5 – 5 .0
0 .5 – 5 .0
reaD
Only
X
♦2
X
♦2
X