AccuEnergy AcuRev 2000, User Manual

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5. Preset/Reset Multi-Register (Function Code 16)
Query
Function Code 16(10H Hex) allows the user to modify the contents of multiple
registers. The example below is a request to preset device address of 17's channel
#1's real-time energy as 12345.6 kWh. AcuRev 2000 energy is raw data multiplied by
0.1 kWh, therefore, the value written into the register should be 123456, hex format is
01E240H. Channel #1's real-time energy address is 2508H and 2509H, 32 bit, total 4 Bytes.
Addr Fun
Data start
reg hi
Data start
reg lo
Data #of
reg hi
Data #of
reg lo
Byte
Count
11H 10H 25H 08H 00H 02H 04H
Value hi Value Lo Value hi Value lo CRC hi CRC lo
00H 01H E2H 40H 18H C8H
Table 5-12 Preset tenant #1's real-time energy
Response
The correct response is to send back address, function code, data starting address, data
bytes, CRC check after the value is changed.
Addr Fun
Data start
reg hi
Data start
reg lo
Data #of
reg hi
Data #of
Reg lo
CRC16
hi
CRC16
lo
11H 10H 25H 08H 00H 02H C9H 96H
Table 5-13 Preset Multi-reigster response frame