heat-timer MODBUS RTU RS485, Installation And Operation Manual

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MODBUS Installation and Operation Manual
HT# 059266-00A
MPCQ reg /
VarIaBle#
DeSCrIPTIOn
MUlT
♦1
(if not 1)
UOM
range / STaTeS / SPeCIal
ValUeS
reaD
Only
162 Outdoor Night Cutoff °C, °F -6 – 38°C, 20 – 100°F
163 Outdoor Sensor °C, °F -40 – 122°C, -40 – +250°F
(32000=Open, 32001=Shorted) ♦2
X
164 Outdoor Sensor Trim °C, °F -3 – +3°C, -5 – +5°F
165 Operation Mode 0=Cycle, 1=Set Point
166 Panel Date Days since
1/1/1981
0 – 36500
167 Pressure Sensor Trim 10 psi -3 .0 – +3 .0
168 Panel Time Minutes
since 0:00
0 – 1439, 1440=not set
169 Purge Delay 2 Minutes 0 – 10
170 Reaction Time Minutes 1 – 10
171 Lead Stage Rotation Mode 0=Time
172 Periodic Rotation Interval Hours 1 – 999
173 through 228 Day/Night Schedules Minutes
since 0:00
0 – 1439, 1440=not set
229 Season 0=Winter, 1=Summer
230 Sequence 0=Lo/Hi/Lo/Hi1=Lo/Lo/Hi/Hi
231 Night Setback Temp 10 psi -10 .0 – 0 .0
232 Set Point 10 psi 0 .0 – 30 .0
233 Day/Night Shift 0=To-Day, 1=To-Night,
2=Extend-Day,
234 Standby Delay Minutes 1 – 60
235 System Pressure Sensor 10 psi -5 .0 – +35 .0
(32000=Open,32001=Shorted) ♦2
X
236 System Run-on Minutes 0 – 60
237 System Relay 0=Off, 1=On X
238 Throttle Range 2 psi 0 .5 – 5 .0
239 Heat Establish Pressure 10 psi 0 .5 – 5 .0
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’
3 0 – 7 ► ‘ABCD’, ‘EFGH’, ‘IJKL’, ‘MNOP’, ‘QRST’, ‘UVWX’, ‘abcd’, ‘efgh’
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 .