Delta AH500 - Page 536

AH500 Programming Manual
6-368
API Instruction code Operand
Function
1603 T- P
S1, S2, D
Subtracting the time
Device
X Y M S T C HC D L SM SR E PR K 16# “$” DF
S
1
        
S
2
        
D
        
Pulse instruction
16-bit instruction (7 steps)
32-bit instruction
AH500
AH500
-
Symbol:
S
1
：
Source device Word
S
2
：
Source device Word
D
：
Device in which the result is stored Word
Explanation:
1. The value of the hour, the value of the minute, and the value of the second in the real-time
clock specified by S
2
are subtracted from the value of the hour, the value of the minute, and the
value of the second in the real-time clock specified by S
1
, and the difference is stored in the
register specified by D.
2. The operands S
1
, S
2
, and D all occupy three consecutive devices.
3. If the difference is a negative, SM601 is ON, and the result gotten from the addition of 24 hours
to the difference is stored in D.
4. If the difference is 0 (0 hour 0 minute 0 second), SM600 is ON.
Example:
1. When M0 is ON, the instruction T- is executed. The value of the hour, the value of the minute,
and the value of the second in D10~D12 are subtracted from the value of the hour, the value of
the minute, and the value of the second in D0~D2, and the difference is stored in D20~D22.
D0
D1
D2
20 (Hour)
20 (Minute)
5 (Second)
D11
D12
14 ( )Hour
30 ( )Minute
8 ( )Second
D20
D21
D22
5 ( )Hour
49 ( )Minute
57 ( )Second
20 hour 20 minute 50 second
14 hour 30 minute 8 second
5 hour 49 minute 57 second
D10
-
2. If the difference is a negative, SM601 is ON.
5 (Hour)
20 (Minute)
30 (Second)
19 ( )Hour
11 ( )Minute
15 ( )Second
10 ( )Hour
9 ( )Minute
15 ( )Second
5 hour 20 minute 30 second
19 hour 11 minute 15 second
10 hour 9 minute 15 second
-
Additional remark:
1. If the value in S
1
or S
2
exceeds the range, the operation error occurs, the instruction is not