The Integral Real-Time Clock S5-100U
Table 12-11. OB21 Program
STL Explanation
OB 21
JU FB 1
NAME: CLOCK
BE
The function block is called up once during a switch from STOP to
RUN.
Table 12-12. OB22 Program
STL Explanation
OB 22
JU FB 1
NAME: CLOCK
BE
The function block is called up once when the programmable
controller is switched on.
Table 12-13. DB75 Program
STL Explanation
DB 75
0: KH = 0000;
1: KH = 0000;
2: KH = 0000;
3: KH = 0000;
4: KH = 0000;
5: KH = 0000;
6: KH = 0000;
7: KH = 0000
Define the number of data words. (Data words 0 to 7 are used in
the example. See Table 12-3) . Define the numerical
representation. Hex is used in the examples.
12-18
EWA 4NEB 812 6120-02
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