349
5-26 Time Instructions
The first two Time Instructions convert time formats. The last two Time Instruc-
tions add/subtract time from calendar values.
5-26-1 HOURS TO SECONDS: SEC(143)
(143)
SEC S R
R: 1
st
result word CIO, G, A, DM
S: 1
st
source word CIO, G, A, T, C, #, DM
Operand Data AreasLadder Symbol
Variations
j SEC(143)
Description When the execution condition is OFF, SEC(143) is not executed. When the ex-
ecution condition is ON, SEC(143) converts time notation in hours/minutes/se-
conds to an equivalent time in seconds only.
For the source data, the seconds are designated in bits 00 through 07 and the
minutes are designated in bits 08 through 15 of S. The hours are designated in
S+1. The maximum is thus 9,999 hours, 59 minutes, and 59 seconds.
The results are output to R and R+1. The maximum obtainable value is
35,999,999 seconds.
Precautions S and S+1 must be BCD and must be in the proper hours/minutes/seconds for-
mat.
Note Refer to page 115 for general precautions on operand data areas.
Flags ER (A50003): S or S+1 are not BCD.
Number of seconds or minutes exceeds 59.
Content of *DM word is not BCD when set for BCD.
EQ (A50006): ON when the result is 0.
Example When 00000 is OFF (i.e., the execution condition is ON), the following instruc-
tion would convert the hours, minutes, and seconds given in D00100 and
D00101 to seconds and store the results in D00200 and D00201 as shown.
D00100 3 2 0 7
D00101 2 8 1 5
D00200 5 9 2 7
D00201 1 0 1 3
2,815 hrs, 32 min, 07 s
10,135,927 s
00000 LD NOT 000000
00001 SEC(143)
D00100
D00200
(143)
SEC D00100 D00200
Address Instruction Operands
0000
00
Time Instructions Section 5-26
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