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TON

3/11/2011 12:08 AM	Rate (0)
jiannis Posts: 2 Rating: (0)	Hi! How can I make a delay for 3 hours is it possible with a TON? I'm asking because I read in the manual of S7-200 that the maximum value you can put in a TON is 3276.7sec (54.6min). thanks a lot
jiannis Posts: 2 Rating: (0)
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3/11/2011 6:16 AM	Rate (0)
Sulung Bronze Member Joined: 5/26/2007 Last visit: 9/11/2025 Posts: 128 Rating: (3)	use counter to count (3 hours x 60 minute x 60 second = 10800 pulse). use sm0.5 as 1 second pulse for counter input.
	Last edited by: Sulung at: 3/11/2011 6:25 AM
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3/11/2011 8:14 AM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 9/15/2025 Posts: 6875 Rating: (1368)	jiannis How can I make a delay for 3 hours is it possible with a TON? I'm asking because I read in the manual of S7-200 that the maximum value you can put in a TON is 3276.7sec (54.6min). Check the sample LAD program which written for S7300-400 controllers.Every 10 minute you have a pulse, so you count the pulses and compare it with refrence data from HMI.This is a hour basis timer and if you use S7 counter which are limited to 999 , you have TON time which can work till 999*10/60=166 hours. Try to use the concept iin S7200. BR Attachment EE.pdf (487 Downloads)
	Demo Channel on Youtube
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3/11/2011 9:11 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating: (716)	Attached you find a Microwin project with 2 homemade timers as a subroutine for the S7 200. Hope this helps. Attachment timer_forum.zip (430 Downloads)
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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3/16/2011 11:29 PM	Rate (0)
jiannis Posts: 2 Rating: (0)	thank you very much for your advices!!
jiannis Posts: 2 Rating: (0)
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3/22/2011 1:11 PM	Rate (0)
Mikesidir Regular Member Joined: 3/17/2011 Last visit: 7/26/2023 Posts: 18 Rating: (1)	Haven't checked the programs above ... Ofcourse using counters is the solution but if you really want to be acurate you should use an interupt to be sure that the counter counts up at the precise elapsed time... Plc cycle is not standard...

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3/25/2011 8:51 PM	Rate (0)
Tiago_Tre Experienced Member Joined: 10/30/2008 Last visit: 7/18/2025 Posts: 64 Rating: (2)	For better accurace you can use the CPU time of a day clock. For start the timer, armazenate the current time added with 3 hours (or other timer) and compare the current value with the armazenated value. When the CV is equal or plus, the timer was reached.
	Last edited by: Tiago_Tre at: 3/25/2011 8:55 PM Tiago Martins Machado Joinville - SC - Brasil
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