Product Support

AcuDC 240 Series Modbus Map

Real-time Measurement Address Table: 03H Read
Address(H) Address(D) Parameter Data Type Access Property

0200H-0201H

512-513 Voltage Float R
0202H-0203H 514-515 Current Float R
0204H-0205H 516-517 Power Float R
0206H-0207H 518-519 AO1 Float R
0208H-0209H 520-521 AO2 Float R
020AH-020BH 522-523 DI1 Count Value UNIT32 R
020CH-020DH 524-525 DI2 Count Value UNIT32 R
Running Time: 03H Read
Address(H) Address(D) Parameter Range Data Type Access Property
0280H-0281H 640-641 Meter running time

0~999999999

Long R
0282H-0283 642-643 Load running time 0~999999999 Long R
Energy and Charge(Ah) Address Table: 03H Read
Address(H) Address(D) Parameter Range Data Type Access Property
0300H-0301H 768-769 Import energy 0~999999999 Long R/W
0302H-0303H 770-771 Export energy 0~999999999 Long R/W
0304H-0305H 772-773 Total energy 0~999999999 Long R/W
0306H-0307H 774-775 Net energy 0~999999999 Long R/W
0308H-0309H 776-777 Import Ah 0~999999999 Long R/W
030AH-030BH 778-779 Export Ah 0~999999999 Long R/W
030CH-030DH 780-781 Total Ah 0~999999999 Long R/W
030EH-030FH 782-783 Net Ah  0~999999999 Long R/W

The relationship between the register value and the real value(Rx is the register value)

Parameter
Relationship
Unit
Voltage Real=Rx V
Current Real=Rx A
Power Real=Rx kW
Energy Real=Rx/100 kWh
Ah Real=Rx/100 Ah
AO Real=Rx V or mA(depends on the AO type)
Running Time Real=Rx/100 Hour
Real Time Clock Address Table
Address(Hex) Address(Dec) Parameter Range Data Type    Property  
0284H 644 Year 2000~2099 Word R/W
0285H 645 Month 1~12 Word R/W
0286H 646 Day 1~31 Word R/W
0287H 647 Hour 0~59 Word R/W
0288H 648 Minute 0~59 Word R/W
0289H 649 Second 0~59 Word R/W

(Data obtained only by AcuDC 243 meter equipped with storage function.)

MIN Records Address Table: 03H Read
Address(Hex) Address(Dec) Parameter Range Data Type Property
0460H-0461H 1120-1121 Voltage MIN
Float R
0462H 1122

Time: Year, Month
Day, Hour, Minute, Second

High byte: Year; low byte: month



Word




R


0463H 1123 High byte: day; low byte: hour
0464H 1124 High byte: minute; low byte: second
0465H-0466H 1125-1126 Current MIN
Float R
0467H 1127 Time: Year, Month
Day, Hour, Minute, Second
High byte: Year; low byte: month




Word





R

0468H 1128 High byte: day; low byte: hour
0469H 1129 High byte: minute; low byte: second
046AH-046BH 1130-1131 Power MIN
Float R
046CH 1132 Time: Year, Month
Day, Hour, Minute, Second

High byte: year; low byte: month



Word




R

046DH 1133 High byte: day; low byte: hour
046EH 1134 High byte: minute; low byte: second

Note: Data obtained only by AcuDC 243 meter equipped with function.
Data Logging Setting Address Table: 03H read; 16H preset
Address(Hex) Address(Dec) Parameter Range Initial Value Data Type Property Register Number
0500H 1280 Enable data logging 0:Disable 1:Enable 0 Word R/W 1
0501H 1281 Mode of data logging 0:mode 1, continuous mode(start after set parameters) 1:mode 2, timing start and stop 2:mode 3, specifies the start time(hour, minute) 0 Word R/W 1
0502H 1282 Interval time 1~1440(Minute) 5 Word R/W 1
0503H 1283 Start time(year, month) High Byte: year(00~99) Low Byte: month(1~12) (Only used in mode 2) Word R/W 1
0504H 1284 Start time(day, hour) High Byte: day(1~31) Low Byte: hour(0~23) Word R/W 1
0505H 1285 Start time (minute) High Byte: minute(0-59) Low Byte: reserved Word R/W 1
0506H 1286 End Time (year,month) High Byte: Year(00~99) Low Byte: month Word R/W 1
0507H 1287 End Time (day,hour) High Byte: day(1~31) Low Byte: hour(0~23) Word R/W 1
0508H 1288 End Time (minute) High Byte: minute(0~59) Low Byte: reserved Word R/W 1
0509H 1289 The specified start recording time: hour and minute High Byte: hour(0~23) Low Byte: minute(0~59) (Only used in mode 3) Word R/W 1
050AH 1290 Number of registers in a log Register number:1-26 0 Word R/W 1
050BH-0524H 1291-1316 The contents of a log(Modbus Register) 0 Word R/W 26
Log Status Address Table: 03H read
Address(Hex) Address(dec) Parameter Range Data Type Property Register Number
0700H-0701H 1792-1793 Max Records 0-350890 Unit32 R 2
0702H-0703H 1794-1795 Used Records 0-350890 Unit32 R 2
0704H 1796 MAX records in the Retrieval window
Word R 1
0705H-0706H 1797-1798 Newest NO of records
Unit32 R 2
0707H-0708H 1799-1800 Oldest NO of records
Unit32
2
0709H 1801 Newest Record Time stamp


High Byte: Year(00-99)

Low Byte: Month(1-12)

Word


R


3


070AH 1802

High Byte: Day(1-31)

Low Byte: hour(0-23)

070BH 1803

High Byte: Minute(0-59)

Low Byte: reserve

070CH 1804 Oldest Record Time stamp


High Byte: Year(00-99)

Low Byte: Month(1-12)

Word


R


3


070DH 1805

High Byte: Day(1-31)

Low Byte: hour(0-23)

070EH 1806

High Byte: Minute(0-59)

Low Byte: reserve

070FH 1807 Memory Status

High Byte: reserve

Low Byte:FEH, memory is erasing; other, erased

Word R 1


Log Retrieval Address Table
Address(Hex) Address(Dec) Parameter Range Data Type Property
0601H-0602H 1537-1538 Starting Record No. Olderst No. of records~Newest No. of Records+1 Unit32 R/W
0603


1539


Records number(High byte) High byte: 1~the MAX record number in a window Word




R/W





Record status(low byte) read only, write invalidate


Low byte:0~the MAX record number in a window:effective number of records in the window;

FDH: Non-effective ‘Start record No.’ or invalid ‘record number in a window’;

FEH: memory is erasing

FFH: Non-effective data

0604H-067BH 1540-1659 Window

Window data: time mark(6 Bytes) + [data1~dataN](4N bytes)

Invalid data set to 0

System Parameter Settings: 03H read; 16H preset
Address(Hex) Address(Dec) Parameter Range Default Data Type Property
0100H 256 Password 0~9999 0000 Word R/W
0101H 257 Device Address 1~247 1 Word R/W
0102H 258 Baud Rate

1200;2400;4800;

9600;19200;38400

19200 Word R/W
0103H 259 Parity Setting

0:Even; 1:Odd;

2:None1; 3:None2

2 Word R/W
0104H 260 Full Range Current Value 20~50000A 20 Word R/W
0105H 261 Full Range Shunt Value 50~100mV 100 Word R/W
0106H 262 Current Hall Effect Sensor(V)

0:0-±5V

1:0-±4V

1



Current Hall Effect Sensor(mA)

0:4~20mA

1:4~12~20mA



0107H 263 Full Range Voltage Value 5~9999 1000 Word R/W
0108H 264 Voltage Hall Effect Sensor

0:0-±5V

1:0-±4V

1 Word R/W
0109H 265 AO1 Parameter

0:voltage

1:current

2:power

0 Word R/W
010AH 266 AO1 Lower Limit Sign 0:+ ; 1:- ; 2:±   0 Word R/W
010BH 267 AO1 Lower Limit 0~100(%) 0 Word R/W
010CH 268 AO1 Upper Limit Sign 0:+ ; 1:- ; 2:±   0 Word R/W
010DH 269 AO1 Upper Limit 0~100(%) 100 Word R/W
010EH 270 AO2 Parameter

0:voltage

1:current

2:power

0 Word R/W
010FH 271 AO2 Lower Limit Sign 0:+ ; 1:- ; 2:±   0 Word R/W
0110H 272 AO2 Lower Limit  0~100(%) 0 Word R/W
0111H 273 AO2 Upper Limit Sign 0:+ ; 1:- ; 2:±   0 Word R/W
0112H 274 AO2 Upper Limit 0~100(%) 100 Word R/W
0113H 275 RO1 Mode

0: Latch; 1:Momentary; 2:Alarm

2 Word R/W
0114H 276 RO1 Momentary Time Delay 300~5000ms 1000 Word R/W
0115H 277 RO1 Alarm Parameter

0:No Alarm; 1:Voltage; 2:Current; 3:Power

0 Word R/W
0116H 278 RO1 Alarm Inequality 0:Smaller than; 1:Larger than 0 Word R/W
0117H 279 RO1 Alarm Time Delay 0~255s 5 Word R/W
0118H-0119H 280~281 RO1 Alarm Threshold The same as full range values
Float R/W
011AH 282 RO2 Mode 0: Latch; 1:Momentary; 2:Alarm 2 Word R/W
011BH 283 RO2 Momentary Time Delay 300~5000ms 1000 Word R/W
011CH 284 RO2 Alarm Parameter 0:No Alarm; 1:Voltage; 2:Current; 3:Power 0 Word R/W
011DH 285 RO2 Alarm Inequality 0:Smaller than; 1:Larger than 0 Word R/W
011EH 286 RO2 Alarm Time Delay 0~255s 5 Word R/W
011FH-0120H 287-288 RO2 Alarm Threshold The same as full range values
Float R/W
0121H 289 Backlight Brightness level 1~5 5 Word R/W
0122H 290 Clear Energy 0X0A: Enable
Word W
0123H 291 Clear Meter Running Hour 0X0A: Enable
Word W
0124H 292 Clear Load Running Hour 0X0A: Enable
Word W
0125H 293 DI Working Mode

According to Bit value:

0:Level mode;

1:Count mode;

Bit0: DI1 working mode

Bit1: DI2 working mode

3 Word R/W
0126H 294 Clear DI Count Value

According to Bit value:

0:Not clear

1:Clear

Bit0:Clear DI1

Bit1:Clear DI2


Word W
0127H 295 Clear Ah 0X0A: Effective
Word W
0128H 296 Clear MAX/MIN Value 0X0A: Effective
Word W
0129H 297 Clear Data Logging 0X0A: Effective
Word W
DI Address Table: 02 read
Address(Hex) Address(Dec) Parameter Range Data Type Property
0000H 0 DI1 1=ON; 0=OFF Bit R
0001H 1 DI2 1=ON; 0=OFF Bit R
Relay Status Table: 01 read; 05 write
Address(Hex) Address(Dec) Parameter Range Data Type Property
0000H 0 DO1 1=ON; 0=OFF Bit R/W
0001H 1 DO2 1=ON; 0=OFF Bit R/W