Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1010

Processing details
• These instructions subtract the time data in the device specified by (s2) from the time data in the device specified by (s1),
and store the subtraction result in the device number specified by (d) and later.
(s1) hour (0 to 23)
(0 to 59)
(s1)+1 minute
second (0 to 59)
(s1)+2
Ex.
3:50:10 is subtracted from 10:40:20.
(s1) 10
(s1)+1 40
20
(s1)+2
• If the time obtained as the result of subtraction becomes a negative value, 24 hours are added to the resultant time to
produce the operation result. For example, when 10:42:12 is subtracted from 4:50:32, the operation result is 18:8:20 rather
than -6:8:20.
(s1)
4
50
(s1)+1
32
(s1)+2
Operation error
Error code Description
(SD0)
3405H The data in the device specified by (s1) or (s2) is out of range.
7 APPLICATION INSTRUCTIONS
1008
7.25 Clock Instructions
(s2) hour
(s2)+1 minute
-
second
(s2)+2
(s2) 3
(s2)+1 50
-
10
(s2)+2
(s2) 10
42
(s2)+1
-
12
(s2)+2
(0 to 23) (d) hour
(0 to 59)
(d)+1 minute
(0 to 59) second
(d)+2
(d)
(d)+1
(d)+2
(d)
(d)+1
(d)+2
(0 to 23)
(0 to 59)
(0 to 59)
6
50
10
18
8
20