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Clock Instructions Section 3-28
3-28-2 CALENDAR SUBTRACT: CSUB(731)
Purpose Subtracts time from the calendar data in the specified words.
Ladder Symbol
Variations
Applicable Program Areas
Operands C through C+2: Calendar Data
Set the calendar data in C through C+2 as shown in the following diagram.
C through C+2 must be in the same data area.
CSUB(731)
C
T
R
C: First calendar word
T: First time word
R: First result word
Variations Executed Each Cycle for ON Condition CSUB(731)
Executed Once for Upward Differentiation @CSUB(731)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
15 8 07
C
15 8 07
C+1
15 8 07
C+2
Minutes: 00 to 59 (BCD)
Seconds: 00 to 59 (BCD)
Day: 01 to 31 (BCD)
Hour: 00 to 23 (BCD)
Year: 00 to 99 (BCD)
Month: 01 to 12 (BCD)