Library manual M238 system functions | 2 MB - BERGER - POSITEC
Library manual M238 system functions | 2 MB - BERGER - POSITEC
Library manual M238 system functions | 2 MB - BERGER - POSITEC
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<strong>M238</strong> System Functions<br />
Example<br />
The following table describes the output variable:<br />
Output Type Comment<br />
SetRTCDrift WORD Returns 00 hex if command is okay<br />
otherwise returns the ID code of the<br />
detected error.<br />
In this example, the function is called only once during the first MAST task cycle, 20<br />
seconds is added to the RTC every Tuesday at 5:45:00 a.m.:<br />
VAR<br />
MyRTCDrift : SINT (-59..59) := 0;<br />
MyDay : DAY_OF_WEEK;<br />
MyHour : HOUR;<br />
MyMinute : MINUTE;<br />
END_VAR<br />
IF IsFirstMastCycle() THEN<br />
MyRTCDrift := 20;<br />
MyDay := TUESDAY;<br />
MyHour := 5;<br />
MyMinute := 45;<br />
SetRTCDrift(MyRTCDrift, MyDay, MyHour, MyMinute);<br />
END_IF<br />
50 EIO0000000364 04/2012
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