183
5-18-5 HOURS-TO-SECONDS – SEC(65)
S: Beginning source word (BCD)
IR, SR, AR, DM, HR, TC, LR
R: Beginning result word (BCD)
IR, SR, AR, DM, HR, TC, LR
Ladder Symbols
Operand Data Areas
---: Not used.
SEC(65)
S
R
---
@SEC(65)
S
R
---
Limitations S and S+1 must be within the same data area. R and R+1 must be within the
same
data area. S and S+1 must be BCD and must be in the proper hours/minu
-
tes/seconds format.
Description SEC(65)
is used to convert time notation in hours/minutes/seconds to an
equiv
-
alent in just seconds.
For
the source data, the seconds is designated in bits 00
through 07 and the min
-
utes is designated in bits 08 through 15 of S. The hours is designated in S+1. The
maximum is thus 9,999 hours, 59 minutes, and 59 seconds.
The
result is output to R and R+1. The maximum obtainable value is
35,999,999
seconds.
Flags ER: S and S+1 or R and R+1 are not in the same data area.
S and/or S+1 do not contain BCD.
Number of seconds and/or minutes exceeds 59.
Indirectly
addressed DM word
is non-existent. (Content of
∗
DM word is
not BCD, or the DM area boundary has been exceeded.)
EQ: Turns ON when the result is zero.
Example When
00000 is OFF (i.e., when the execution condition is ON), the following in
-
struction
would convert the hours, minutes, and
seconds given in HR 12 and HR
13 to seconds and store the results in DM 0100 and DM 0101 as shown.
SEC(65)
HR 12
DM 0100
000
00000
HR 12 3 2 0 7
HR 13 2 8 1 5
DM 0100 5 9 2 7
DM 0101 1 0 1 3
2,815 hrs, 32 min, 07 s
10,135,927 s
Address Instruction Operands
00000 LD NOT 00000
00001 SEC(65)
HR 12
DM 0100
000
Data Conversion Section 5-18