www.accuenergy.com
V: 1.0 Revised: Jan. 2018
78
AcuDC 240 Series
DC Energy & Power meters
Address
(Hex)
Address
(dec)
Parameter Range Data Type Property
0601H-0602H 1537-1538 Starting Record No.
Oldest No. of Records ~ Newest No. of
Records +1
UNIT32 R/W
0603H 1539
Records number(High
byte)
High byte: 1~ the MAX record number in
the 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
3) MAX Records in the Retrieval Window
In the Retrieval Window, the maximum number of records can be read.
4) Newest Serial No. of Records
The serial number of the first record is 1, and then is accumulated by 1 as one more record
is put in. The system will delete the old record when the storage memory is full, but the
serial number will not reset, continue to accumulate by the latest serial number.
5) Oldest Serial No. of Records
After storage memory is full, the system will delete the old data to record new data. The
Oldest Serial No. of records is the serial number of the oldest record under the current
state.
6) Latest Record Timestamp
The recording time of the latest record
7) Oldest Record Timestamp
The recording time of the oldest record
8) Memory Status
Check the status of the memory. To check whether it is in erasing.
Log Statue Block
(Data obtained only by AcuDC 243 meter equipped with storage function make sense.)
Function code: 03H for reading, 16H for presetting.
Table B-23 Log Retrieval Address Table
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