Siemens SIMATIC S5-115U, User Manual

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Integral Real-Time Clock S5-115U Manual
FB11 STL (Continued) Description
:L =HOUR STORE VALUE FOR HOUR
:ON =AMPM IF AMPM = 1 (AFTERNOON) AND
:ON =MODE 12-HR MODE ARE SET, THE
:JC =MORN CORRESPONDING BIT ON THE CLOCK
:L KH 0080 DATA AREA WILL BE SET
:OW
MORN :T DR 10
:L =MIN STORE VALUE FOR MINUTES
:T DL 11
:L =SEC STORE VALUE FOR SECONDS
:T DR 11
:AN F 10.6 TRANSFER SETTINGS
:S F 10.6 (BIT 14 IN STATUS WORD FW 10)
:L KT 020.1 START MONITORING TIME
:SE T 11
M001 :A T 11 BEC IF MONITORING TIME NOT YET
:BEC ELAPSED
:AN F 10.6 HAVE SETTINGS BEEN TRANSFERRED?
:JC =M002 IF YES, JUMP TO M002
:S =ERR IF ERROR, SET ERROR BIT
:BEU
M002 :AN F 10.4 ERROR WHEN ENTERING SETTINGS?
:RB =ERR IF NO, RESET ERROR BIT
:BEC BEC IF NO ERRORS
:S =ERR IF ERROR, SET ERROR BIT
:BE
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Programming the Operating Hours Counter
The operating hours counter is enabled with bit 9 of the status word. This allows you to establish,
for example, the number of hours a motor has been in operation. The operating hours counter is
only active in RUN mode.
Transferring Settings to the Operating Hours Counter
You can preset the operating hours counter to a specific initial value (e.g. after change of CPU).
• The clock data must be transferred in BCD.
Note
The "KC" data format loads a BCD constant into accumulator 1 and is therefore
especially suitable for entering settings.
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EWA 4NEB 811 6130-02b