daylight saving detection

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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luce
Posts: 4
Joined: Wed Apr 13, 2011 8:55 am

daylight saving detection

Post by luce »

Hi,

Is existing any block to pcs7 or step 7 which can detect that was changed form winter/summer time?

cheers
Luce
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Info
Faq & Info
Faq & Info
Posts: 428
Joined: Wed Oct 05, 2005 9:00 am

Re: daylight saving detection

Post by Info »

(sfaq) https://support.industry.siemens.com/cs ... c&lc=en-WW
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luce
Posts: 4
Joined: Wed Apr 13, 2011 8:55 am

Re: daylight saving detection

Post by luce »

Hi,

I was looking for information on Siemens web-pages, but official response of Siemens is to keep winter time in plc all the time. My process depends on local time, so I must to know when was time change done. Synchronization time is not supporting daylight saving change.

cheers
Luce
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dsekulic
Posts: 186
Joined: Sun Feb 12, 2006 5:47 pm
Location: Europe

Re: daylight saving detection

Post by dsekulic »

Hi,
For DCF77 You need hardware.
There is some functions in OSCAT library
link: http://www.oscat.de/component/jdownload ... l?Itemid=0

there You can find oscat_basic_332_s7 Step7 library with various functions. In manual oscat_basic333_en there is one function DT2_TO_SDT which are able to check if daylight saving time is active or not.
kind regards
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luce
Posts: 4
Joined: Wed Apr 13, 2011 8:55 am

Re: daylight saving detection

Post by luce »

That is what I was looking for.
Thank you!!!

Luce
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