The Integral Real-Time Clock
S5-100U
Reading the Current Operating Hours Counter
The current data is stored in words 12 to 14 of the clock data area. You can use load operations to
read out the data.
Example:
Reading the operating hours counter
You need to switch off a machine for inspection after every 300 hours of operation. Flag F 12.4 is
set when the machine is switched off. After 300 hours of operation, a jump is made to PB5 to switch
the machine off (not programmed in the example).
The clock data area is in DB2 beginning with flag word FW0, and the status word is flag word FW10.
OB1 STL
Explanation
:JU FB 14 EVALUATE OPERATING HOURS COUNTER
NAME :BETR-LES
:
:BE
FB14 STL
Explanation
NAME :BETR-LES READING THE OPERATING HOURS COUNTER
:C DB 2 DB IN WHICH THE CLOCK DATA IS LOCATED.
:A F 12.4 IF AUXILIARY FLAG 12.4 IS SET, OFF.
:BEC THE MACHINE IS ALREADY
:
BLOCK END
:L DL 14 LOAD HOUR VALUE X 100 IN ACCU 1
:
:L KC 003 COMPARE TO 3 (=300 HOURS)
:><F
:BEC END IF 300 HOURS NOT YET
: REACHED
:S F 12.4 SET AUXILIARY FLAG
:JU PB 5 JUMP TO PB5 WHEN 300 OPERATING
: HOURS REACHED
:
:BE
12-34
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Содержание SIMATIC S5-100U
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Страница 505: ...B Dimension Drawings EWA 4NEB 812 6120 02b ...
Страница 515: ...C Active and Passive Faults in Automation Equipment EWA 4NEB 812 6120 02b ...
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Страница 523: ...D Information for Ordering Accessories EWA 4NEB 812 6120 02b ...
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Страница 531: ...E Reference Materials EWA 4NEB 812 6120 02b ...
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Страница 535: ...F Siemens Addresses Worldwide EWA 4NEB 812 6120 02b ...
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Страница 543: ...Index EWA 4NEB 812 6120 02b ...
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