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Seting hour for summer and winter

Created by: YANIS at: 4/18/2007 2:38 PM (12 Replies)

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4/18/2007 2:38 PM	Rate (0)
YANIS Posts: 15 Rating: (0)	Hi, How can i set hour for summer and winter S7-300 CPU 313C-2 DP Thanks
YANIS Posts: 15 Rating: (0)
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4/18/2007 3:11 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 4/16/2021 Posts: 8013 Rating: (1009)	Hello YANIS, Have you seen this faq: http://support.automation.siemens.com/WW/view/en/19324378 Perhaps it's usefull. Best regards, Wizard

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4/18/2007 3:16 PM	Rate (0)
YANIS Posts: 15 Rating: (0)	hi, of course i see it, but how i set it thanks
YANIS Posts: 15 Rating: (0)
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4/18/2007 3:27 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 4/16/2021 Posts: 8013 Rating: (1009)	Hi, You can read the clock by using SFC1 READ_CLK and you can set the clock by using SFC0 SET_CLK. Perhaps is this link usefull: http://support.automation.siemens.com/WW/view/en/24104105 Best regards, Wizard

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4/18/2007 4:00 PM	Rate (0)
YANIS Posts: 15 Rating: (0)	hi, ok i read it and i write the same hour , but how can i add 1 hour evry year Best regards thanks
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4/18/2007 4:19 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 4/16/2021 Posts: 8013 Rating: (1009)	Hi, So you have seen the first link I mentioned. Here you can see that it's possible to use FC61 of Standard library -> Miscellaneous. Please have a look at online help of this function and Rule DB/UDT60. Best regards, Wizard

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4/18/2007 4:48 PM	Rate (0)
YANIS Posts: 15 Rating: (0)	Hi, First thanks for u're help well i read the faq but if you could say some to me more (exuse my english is bad ) - i read hour in the s7-300 and call the FC60 - i write it in DB like in the faq it's what I understood . is' it necessary to call of other sfc Thanks Best regards
YANIS Posts: 15 Rating: (0)
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4/18/2007 8:17 PM	Rate (1)
heut Advanced Member Joined: 11/7/2006 Last visit: 9/11/2020 Posts: 24 Rating: (4)	Hi, As far as i know there is no standard function for it, so i have make it. I have make a function in SCL who calculate al the nessesary things for automatic summer/winter time, take a look at it and if you have more questens please let me know, Heut Attachment summer.zip (165 Downloads)

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4/20/2007 11:28 AM	Rate (0)
Aret Posts: 2348 Rating: (248)	Well, Wizard is right - there is standart solution. To make it work you must read time from system. Then fill DB with values defining date and time when change summer/winter occurs (It's DB created from UDT). Then passing DB and time to BT_LT function you get local time.
Aret Posts: 2348 Rating: (248)
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4/20/2007 11:40 AM	Rate (0)
heut Advanced Member Joined: 11/7/2006 Last visit: 9/11/2020 Posts: 24 Rating: (4)	Hi, I did not know that this function was standard, next time a take a better look in the library before a make my own functions. by the way, when you use a 313 CPU you have to pay attention of the code-size and execution time with the standard function.
	Last edited by: heut at: 20.04.2007 11:52
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