6 – 18
6 Buffer memory
QE81WH4W
6.3.10 Year of time of the max. current demand (Un
\
G222),
month and day of time of the max. current demand (Un
\
G223),
hour and minute of time of the max. current demand (Un
\
G224),
second and day of the week of time of the max. current demand (Un
\
G225),
year of time of the min. current demand (Un
\
G228),
month and day of time of the min. current demand (Un
\
G229),
hour and minute of time of the min. current demand (Un
\
G230),
second and day of the week of time of the min. current demand (Un
\
G231)
Stores year, month, day, hour, minute, and the day of the week of time of maximum value of electric
current demand (Un
\
G220, 221) and minimum value of electric current demand (Un
\
G226, 227) were
updated.
(1) Details of stored data
(a) Storage format
As indicated below, data are stored as BCD code in the buffer memory.
Buffer memory address
Storage format
Un
\
G222
/
Un
\
G228
e.g.) Year 2010
2010h
Un
\
G223
/
Un
\
G229
b15
b12 b11
b8 b7
b4 b3
b0
～
～
～
～
Year
e.g.) July 30
0730h
Un
\
G224
/
Un
\
G230
b15
b12 b11
b8 b7
b4 b3
b0
～
～
～
～
Month
Day
e.g.) 10:35
1035h
Un
\
G225
/
Un
\
G231
b15
b12 b11
b8 b7
b4 b3
b0
～
～
～
～
Hour
Minute
e.g.) 48 sec Friday
4805h
b15
b12 b11
b8 b7
b4 b3
b0
～
～
～
～
(b) Update timing
It will be updated every measuring cycle (250 ms) if it exceeds the current max. value or goes
under the current min. value.
Second
0 fixed
0
日
1
月
2
火
3
水
4
木
5
金
6
土
曜日
Day of the week
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday
6 Saturday
