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I am a Codesys newbie. How do you subtract 5 hours from a DT variable? I searched Google, but could not find anything relating to this procedure.
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Anonymous
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2013-03-09
Originally created by: 99bobster99
I think I figured it out. Please let me know if there is an easier way to do this. I converted my DT variable to a DWORD, then subtracted 18000 from it. This seems to work for me, but kind of ugly.
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Originally created by: 99bobster99
Hello,
I am a Codesys newbie. How do you subtract 5 hours from a DT variable? I searched Google, but could not find anything relating to this procedure.
Originally created by: 99bobster99
I think I figured it out. Please let me know if there is an easier way to do this. I converted my DT variable to a DWORD, then subtracted 18000 from it. This seems to work for me, but kind of ugly.
make a var of same type like DT
fill it with t#5h
zonetime:DTIME:=t#5h;
then simple subtract this.
there is one drawback, when system overflows the time is not correct for 5 hours.
see also w www.oscat.de w (it is english)
Originally created by: 99bobster99
Thank you Shooter, I will give that a try!