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REAL TIME CLOCK

Created by: STAMATIS_ at: 5/31/2010 1:56 PM (4 Replies)

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5/31/2010 1:56 PM	Rate (0)
STAMATIS_ Posts: 16 Rating: (0)	Hello everybody. I want to set a bit at a specified time of the day every day with a S7-300. How can i do it? Thanks a lot
STAMATIS_ Posts: 16 Rating: (0)
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5/31/2010 2:05 PM	Rate (0)
Darius Platinum Member Joined: 9/28/2005 Last visit: 5/2/2023 Posts: 2957 Rating: (242)	Hello, You can use Time-of-day interrupt for this purpose. Look attached file. just enter desired start date and start time and select to run this every day. Then make program for OB10 what you like. Other way is to read RTC clock (SFC1) and compare it with desired time of the day. If read time of day is equal to desired then set bit. Faster way is with interrupt. Attachment screen_001.jpg (269 Downloads)
	Best regards, Darius
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5/31/2010 4:03 PM	Rate (0)
STAMATIS_ Posts: 16 Rating: (0)	Thanks a lot but only one interrupt i can use? Because at the TIme Of Day Interrupts Tab only one is active
STAMATIS_ Posts: 16 Rating: (0)
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5/31/2010 5:13 PM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	Hello, Perhaps is helpful Setting the time-of-day interrupt I suggest you to use other way - with SFC1. look at How can you read out the date and time with SFC1 (READ_CLK) and input them with SFC0 (SET_CLK)? . Yes, it is more difficult then previous, but once you did, could help you in other purposes without to load hardware configuration. best regards, Hristo Mihalev

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7/10/2021 6:26 PM	Rate (0)
OMKRIS2017 Bronze Member Joined: 1/1/2017 Last visit: 5/9/2023 Posts: 310 Rating: (10)	UMENCHO Hello, Perhaps is helpful Setting the time-of-day interrupt I suggest you to use other way - with SFC1. look at How can you read out the date and time with SFC1 (READ_CLK) and input them with SFC0 (SET_CLK)? . Yes, it is more difficult then previous, but once you did, could help you in other purposes without to load hardware configuration. best regards, Hristo Mihalev Thanks a lot Umencho!

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