S5-95F The Integral Real-Time Clock
Prompt Time Sequence
• Bit 13 in the status word is set after the prompt time has elapsed.
• Bit 13 remains set until you reset it in the control program.
• The prompt time can be read at any time.
!
Caution
If the prompt time is reached in the STOP mode or during Power OFF, the prompt time
cannot be evaluated. It is always deleted on restart.
Example: Setting and evaluating the prompt time
In the example program, the status of input I 0.6 determines whether the settings for the prompt time
are transferred. Before setting input I 0.6, you must transfer the settings to flag bytes FY130 and
FY135. Enter values that you do not wish to be evaluated as FF
H
.
You set the clock mode with input I 1.0. Use input I 0.1 to specify the AM/PM bit for 12-hour mode.
If the preset prompt time has been reached, set flag F 13.2. If errors are made while entering the
prompt time, the error bit, flag F 12.2, is set.
The clock data is stored in DB200 beginning with data word DW0, and the status word is data word
DW 22.
OB1 STL Explanation
: =========================================
:A I 0.6 SETTING AND EVALUATING THE PROMPT TIME
:AN F 0.3 =========================================
:S F 20.1 LOAD VALUES INTO FY130 TO FY135
: FIRST.
:A I 0.6 TRIGGER SETTING OF PROMPT TIME
:= F 0.3 BY SETTING F 20.1 (RESET IN FB11)
:
:JU FB 11
NAME :SET PROMPT TIME
WDAY : FY 130 WEEKDAY
DAY : FY 131 DAY
MON : FY 132 MONTH
HOUR : FY 133 HOUR
AMPM : I 1.1 AMPM-BIT (ONLY IMPORTANT IN 12-HOUR MODE)
MIN : FY 134 MINUTES
SEC : FY 135 SECONDS
ERR : F 12.2 ERROR BIT
ALRM : F 13.2 DISPLAYS THAT PROMPT TIME IS REACHED.
MODE : I 1.0 CLOCK MODE
:BE
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EWA 4NEB 812 6210-02
10-15
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