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Trigger a time variable

Created by: Gabriel_W at: 10/22/2024 7:33 AM (26 Replies)

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10/23/2024 4:05 AM	Rate (0)
qwazee Platinum Expert Joined: 3/30/2020 Last visit: 9/5/2025 Posts: 5427 Rating: (1064)	jacek d qwazee TIME is a DINT number that only utilises the positive portion of the DINT values. It is not. The range of the TIME data type is -T#24D_20H_31M_23S_648MS to T#24D_20H_31M_23S_647MS. I am wrong. Thanks for pointing that out. Do we know if TIME_TCK() gives values between T#0MS and T#24D_20H_31M_23S_647MS. Or does the instruction use the full range? Your previous post asserts that only the positive ranges are used.
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10/23/2024 5:42 AM	Rate (0)
qwazee Platinum Expert Joined: 3/30/2020 Last visit: 9/5/2025 Posts: 5427 Rating: (1064)	jacek d How about following instead? elapsed_time := (Current_Time-Start_Time) MOD T#24D_20H_31M_23S_647MS And here parentheses around subtraction are really required. I tested your suggestion. There is a problem. Please review the image.
	Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued.
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This contribution was helpful to 1 thankful Users jacek d

10/23/2024 7:32 AM	Rate (0)
Piotr.M Platinum Expert Joined: 6/24/2013 Last visit: 8/21/2025 Posts: 1693 Rating: (433)	Parentheses are deliberate to prevent overflow during calculations

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10/23/2024 7:53 AM	Rate (0)
Gabriel_W Joined: 10/9/2023 Last visit: 8/29/2025 Posts: 67 Rating: (0)	Gabriel_W An other question, Can SFC64 be used in the same time in the programme ? I repost my question. For exemple, can I use the SFC64 in three different places in my program at the same time?

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10/23/2024 8:15 AM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 9/5/2025 Posts: 5112 Rating: (768)	Gabriel_W For exemple, can I use the SFC64 in three different places in my program at the same time? Yes.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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This contribution was helpful to 1 thankful Users Gabriel_W

10/23/2024 8:19 AM	Rate (0)
Gabriel_W Joined: 10/9/2023 Last visit: 8/29/2025 Posts: 67 Rating: (0)	jacek d Yes. Thanks.

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10/23/2024 1:07 PM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 9/5/2025 Posts: 5112 Rating: (768)	qwazee Do we know if TIME_TCK() gives values between T#0MS and T#24D_20H_31M_23S_647MS. Yes. qwazee jacek d How about following instead? elapsed_time := (Current_Time-Start_Time) MOD T#24D_20H_31M_23S_647MS And here parentheses around subtraction are really required. I tested your suggestion. There is a problem. Please review the image. You are right. It won't work with MOD in the way I expected in this case.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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This contribution was helpful to 1 thankful Users qwazee

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