Clock Instructions - Mitsubishi Electric MELSEC-Q/L Programming Manual

Clock instructions

Category Instruction
symbol
Read/write DATERD
clock data
DATERDP
DATEWR
DATEWRP
Clock data DATE+
addition/
subtraction
DATE+P
DATE-
DATE-P
Clock data SECOND
translation
SECONDP
HOUR
HOURP
Hour meter HOURM
DHOURM
2 INSTRUCTION TABLES
70
2.5 Application Instructions
Symbol
DATERD D
DATERDP D
DATEWR S
DATEWRP S
DATE+ S1 S2 D
DATE+P S1 S2 D
DATE- S1 S2 D
DATE-P S1 S2 D
SECOND S D
SECONDP S D
HOUR S D
HOURP S D
HOURM S D1 D2
DHOURM S D1 D2
Processing details
(Clock elements) (D) +0
Year
+1 Month
+2
Day
+3 Hour
+4
Minute
+5 Sec.
+6 Day of the week
(D) +0 (Clock elements)
Year
+1
Month
+2
Day
+3
Hour
+4
Minute
+5
Sec.
+6
Day of the week
(S1) (S2) (D)
Hour Hour Hour
Minute Minute Minute
+
Sec. Sec. Sec.
(S1) (S2) (D)
Hour Hour Hour
Minute Minute Minute
Sec. Sec. Sec.
(S) (D)
Sec. (Lower 16 bits)
Hour
Sec. (Upper 16 bits)
Minute
Sec.
(S) (D)
Sec. (Lower 16 bits) Hour
Sec. (Upper 16 bits)
Minute
Sec.
• While the execution
specification is on, the current
value is stored in increments
of hour in the device
designated by (D1) and the
current value less than an
hour is stored in increments of
second in the device
designated by (D1)+1.
• The device designated by
(D2) turns on when the
cumulative ON time of the
execution command exceeds
the time designated by (S).
• While the execution
specification is on, the current
value is stored in increments
of hour in the devices
designated by (D1), (D1)+1
and the current value less
than an hour is stored in
increments of second in the
device designated by (D1)+2.
• The device designated by
(D2) turns on when the
cumulative ON time of the
execution command exceeds
the time designated by (S).
Execution Number Subset Reference
condition of basic
steps

2

2

4

4
3 

3

4

4
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