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Time conversion

Created by: Thome at: 11/15/2010 4:43 PM (7 Replies)

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11/15/2010 4:43 PM	Rate (0)
Thome Posts: 5 Rating: (0)	I`m having a problem to convert timing to real unit, i`m working in a progran that need to count and divede by time but the div process olnly real by real, how can i do this? each time that a tag set it`s count, and during the process i need to divide it for the time it's working in minuts.
Thome Posts: 5 Rating: (0)
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11/15/2010 4:58 PM	Rate (0)
umencho Diamond Member Joined: 3/21/2006 Last visit: 1/14/2025 Posts: 10239 Rating: (1182)	Hello, Isn't be a something like in http://support.automation.siemens.com/WW/view/en/45603743 Best regards, Hristo Mihalev

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11/15/2010 7:47 PM	Rate (0)
Thome Posts: 5 Rating: (0)	no i have a counter and a timer_on in the process, i to use the counter out of the counter and divide it by the timing on the timer_on, but I couldn`t yet couse the timer_on out time is a timer variable and the divider funcion only aply to real/real=real not real/timer=real. And it happens that I do not succeed changing the timer ms/ s /mim /hours?
Thome Posts: 5 Rating: (0)
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11/16/2010 7:30 AM	Rate (2)
fritz Diamond Member Joined: 10/7/2005 Last visit: 1/17/2025 Posts: 3030 Rating: (1058)	Hello Thome since you have posted in the S7-1200 conference I presume that you are using IEC Timers, correct? If so the Timer "ET" output TIME data type is simply a DINT value in milliseconds. Addthe "CONV" convert function to your program, selectDINT as the IN and REAL as the OUT to convert yourTIMERvalue to a REAL value (divide this value by 60000.0 to get a minute based time value which seems to be what youare after). I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 1 thankful Users dougt

11/16/2010 2:07 PM	Rate (0)
Thome Posts: 5 Rating: (0)	It helps a litle about the conversion, but i need that the timer that shows on the screem has to be on minuts not only mili seconds, i gonna modify the program but i think that i have put it the conversion timer dint -- out real but didn't work!! so again i-m gonna check. And my s7-1200 is having a problem every, last friday i change the timer on the plc, and this monday when i was going to change againthe program don't accept it, it's a bug*(i can't find the interrogation mark on this keybord)}}
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11/17/2010 12:33 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 1/17/2025 Posts: 3030 Rating: (1058)	Hello Thome apart from the previously described 60000 diversion to get a minute based value in thePLC out of the ms based TIME value, you can of course alsouse linear scaling for the HMI tag instead. The attached screendump shows you an examplefor (HMI) minute to (PLC) milliseconds scaling and I hope this helps. As for theother problem, I'm afraid to say that I don't quite understandwhat you mean, can you descibe it a bit more in detail please. Attachment WinCC Basic - Tag linear scaling.jpg (1036 Downloads)
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 1 thankful Users BilgeErdogdu

11/17/2010 1:29 AM	Rate (0)
Thome Posts: 5 Rating: (0)	let me see. i have solve some problems, the converssion is ok. the time ms to mim throught conversion is ok. but i got this : i need to divide real by real not int couse I need something like this: -during the process I have a counter. -in the same process I have a timer. if I put the counter divided by time I wan`t to have cicles by mim. but i got it, and it only shows INT like 7,8,9,.../mim but i need real like 7.12, 7.13, 7.14./mim And about the error I don`t know exacly what happens, last time that i put the progran at the cpu and HMI(IHM) i could change the time and the date . But two days after i tryed and nothing happen.
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This contribution was helpful to 1 thankful Users Animantium79

10/7/2022 3:49 AM	Rate (0)
Animantium79 Member Joined: 2/10/2014 Last visit: 11/25/2024 Posts: 1 Rating: (0)	Have you tried instead of converting to min you convert to sec then move your decimal point on hmi 3 over think this might work for you

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