AccuEnergy AcuRev 1312, Руководство пользователя

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V: 1.0 Revised: Aug. 2017
Chapter 5: Communication
39
The data for each parameters will be in 2 registers where each register contains 2 bytes. The reg-
isters for the parameters to be polled in this example are 900H-901H, 902H-903H and 904H-905H
respectively.
Query:
Addr Fun
Data start
register hi
Data start
register low #of registers hi #of registers low CRC16 hi CRC16 low
11H 03H 09H 00H 00H 06H C4H C4H
Response:
The AcuRev 1312 responds back to the master’s query by responding with its slave device, func-
tion code, data and CRC check.
Below is the response from the AcuRev 1312 for returning the total active energy (1.27kWh),
tariff 1 energy (1.00kWh) and tariff 2 energy(0.27kWh). When the values are returned in Modbus,
they need to be scaled. The relationship for the energy data between the real value and the
communication value is real value= communication value/100.
Addr Fun
Byte
count Data 1hi Data 1 low Data 2 hi Data 2 low Data 3 hi Data 3 low Data 4 hi
Data 4
low
11H 03H 0CH 00H 00H 00H 7FH 00H 00H 00H 64H
Data 5 hi Data 5 lo Data 6 hi Data 6 lo CRC16 hi CRC16 low
00H 00H 00H 1BH 96H 8DH
2. Preset/Reset Multi-Registers (Function Code 10H)
Function code 10H allows the user to write the contents of meters registers such as system pa -
rameters and energy initialization.
Below is an example on writing a value to the meters total active energy (0.2kWh)
Addr Fun Byte count Data start
register hi
Data start
register low #of registers hi #of registers low Byte Count
11H 10H 0CH 09H 00H 00H 00H 02H
Value hi Value lo Value hi Value lo CRC16 hi CRC16 low
00H 00H 00H 14H CDH 30H