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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 .

Содержание MODBUS RTU RS485

Страница 1: ...or safety control all equipment must have its own certified limit and safety controls required by local codes The installer must verify proper operation and correct any safety problems prior to the in...

Страница 2: ...Configuration 3 MODBUS Communication Options 3 MAC Address 3 Baud 3 Troubleshooting 3 HWr Platinum MODBUS Variable list 4 HWrQ Platinum MODBUS Variable list 6 Multi MOD Platinum MODBUS Variable list...

Страница 3: ...US COMMUnICaTIOn OPTIOnS SELECT MENU Maintenance Network Settings Multi MOD Platinum SELECT MENU Settings More Settings Remote Interface Network Settings All Other Platinum Controls Before connecting...

Страница 4: ...f 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 32000 Open 32001 Shorted 2 X 30 Outdoor Sensor Trim C F 3 3 C 5 5 F 31 Offset Temperature C...

Страница 5: ...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 Us...

Страница 6: ...Cut off C F 0 25 C 30 75 F 87 DHW Call Mode 0 No Priority 1 Priority 88 Day Light Saving 0 Enable 1 Disable 89 Sensor Fault Mode 0 Stages On 1 Stages Off 90 Fast Cool Down 0 Minimum Target Temp 1 Off...

Страница 7: ...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 Re...

Страница 8: ...0 60 79 Input Mode 0 F 1 C 2 15psi 3 30psi 4 100psi 5 200psi 6 300psi 7 HWR 8 Reset F 9 Reset C X 80 Lead Stage 0 19 A T 81 Pre purge Delay 10 Minutes 0 0 10 0 82 through 101 Lockout Input Stages 1 20...

Страница 9: ...ecified 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 div...

Страница 10: ...ted 2 X 31 Outdoor Sensor Trim C F 3 3 C 5 5 F 32 Operation Mode 0 Burner valve 1 District Steam 33 Output Relay 0 Off 1 On X 34 Panel Date Days since 1 1 1981 0 36500 35 Panel Time Minutes since 0 00...

Страница 11: ...mation MPCQ PlaTInUM MODBUS VarIaBle lIST MPCQ reg VarIaBle DeSCrIPTIOn MUlT 1 if not 1 UOM range STaTeS SPeCIal ValUeS reaD Only 1 3 Model 6 Character string 3 X 4 13 Serial Number 20 Character strin...

Страница 12: ...tem 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 T...

Страница 13: ...o 0 note Use Setback if Operation Mode is set to 1 note Use Last Stage Hold Min Runtime Purge Reaction Time Standby Delay when Logic Mode is set to 0 note Use Reaction Time when Lead Stage Rotation Mo...

Страница 14: ...6 Day Light Saving 0 Enable 1 Disable 27 Sensor Fault Mode 0 OutputOn 1 OutputOff 28 Valve at Freezing 0 100 29 Sensor Mode 0 F 1 C X 30 Motor Time Seconds 120 600 31 Manual Valve Target 0 100 32 Nigh...

Страница 15: ...gister 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...

Страница 16: ...building systems including but not limited to the heating system boilers or electrical power system that is required for proper operation of any controls or other equipment installed by Heat Timer Co...

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