Mitsubishi QJ71GP21-SX, Reference Manual

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9
DEDICATED INSTRUCTIONS
9.8 J(P)/G(P).REQ (Reading/Writing Clock Data)
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(b) Request data (All set by the user)
: Set — : Not set
POINT
In clock data writing by the REQ instruction, the first two digits of the year cannot
be changed.
To change the first two digits of the year data, modify the clock setting from GX
Developer or with the RTMWR instruction.
• Section 4.2.4 Clock setting from GX Developer
• Section 9.17 Z(P).RTMWR
Table 9.36 Request data
Device Item Setting data
Clock data
read
Clock data
write
(S2)+0 Request type
0001
H
: Clock data read
0011
H
: Clock data write (when station No. is specified in (S1)+5)
0031
H
: Clock data write (when all stations or a group is specified in (S1)+5)
(S2)+1
Sub-request
type 0002
H
: Clock data read
0001
H
: Clock data write
(S2)+2
Change pattern,
clock data to be
changed
1) Change pattern (bits 0 to 7)
Specify which items are to be written to the fields of (high byte of
(S2)+2) to ((S2)+5).
0: Do not change
1: Change
—
2) Year data (bits 8 to 15)
Specify the year (last two digits) as a BCD code.
(S2)+3
Clock data to be
changed
(continued)
Specify new clock data as BCD codes.
—
(S2)+4 —
(S2)+5 —
Year (Last 2 digits)
Month
Day
Hour
Minute
Second
Day of week
b7
0
b6 b5 b4 b3 b2 b1 b0
Year (00
H
to 99
H
) First 2 digits
b15 to b8
(S2)+3
(S2)+4
(S2)+5
Month (01
H
to 12
H
)
Hour (00
H
to 23
H
)
Second (00
H
to 59
H
)
Day (01
H
to 31
H
)
Minute (00
H
to 59
H
)
00
H
(Sun.) to 06
H
(Sat.)
Day of week (00
H
to 06
H
)
b15 b8 b7 to b0 to