Mitsubishi Electric Melsec Q Series User Manual page 72

6 Buffer memory
6.4 Common sections (Un \ G3000 to Un \ G4999)
6.4.1 Latest error code (Un \ G3000)
The latest error code that is detected with this module will be stored.
*For the list of error codes, refer to section 9.1.
(1) Details of stored data
(a) Storage format
Data are stored as 16-bit signed binary in the buffer memory.
- Data range: 0000h (normal), 0001h to FFFFh (error code)
(b) Update timing
It will be updated at the time of error occurrence and error recovery.
6.4.2 Year of time of the error (Un \ G3001), month and day of time of the error (Un \ G3002),
hour and minute the error (Un \ G3003), second and day of the week of time of the error (Un \ G3004)
The year, month, day, hour, minute, and day of the week of time of the error will be stored.
(1) Details of stored data
(a) Storage format
As indicated below, data are stored as BCD code in the buffer memory.
Buffer memory address
(b) Update timing
It will be updated at the time of error occurrence and error recovery.
b15
Un\G3001
b15
Un\G3002
b15
Un\G3003
b15
Un\G3004
Storage format
b12 b11 ～ b8 b7 ～ b4 b3
～
Year
b12 b11 b8 b7 b4 b3
～ ～
～
Month Day
b12 b11 ～ b8 b7 ～ b4 b3
～
Hour
Minute
b12 b11 ～ b8 b7 ～ b4 b3
～
0 fixed
Second
6 – 30
～ b0
e.g.) Year 2010
2010h
～ b0
e.g.) July 30
0730h
～ b0
e.g.) 10:35
1035h
～ b0
e.g.) 48sec Friday
4805h
曜日
Day of the week
0 Sunday
0 日
1 Monday
1 月
2 Tuesday
2 火
3 Wednesday
3 水
4 Thursday
4 木
5 Friday
5 金
6 Saturday
6 土
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