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S5 Timer Value needs to be changed from WinCC

Created by: Gaurav_79 at: 2/10/2011 5:51 PM (10 Replies)

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2/10/2011 5:51 PM	Rate (0)
Gaurav_79 Posts: 33 Rating: (1)	I want to change the time of an on delay timer (S5T#xxS) fom WinCC. I tried it in many ways but only partially succeded. All which I have done is as given below.. Created a MW230 in S7 300 PLC and made a tag (unsigned 16 bit value) in SCADA. Created a data box at SCADA and attached this tag with it. After that I moved the value of MW230 to a DB3.DBW0 (to convert it in S5T#0S format). Then attached this DB value with the on delay timer. Only success I got is that when I enter a value of 1100 at scada, timer runs for 10 seconds, and on entering 1500, it runs for 50 seconds. That is, only second and third digit is the time which is to be required. This works but looks very bad. I want that on entering 50, timer should run for 50 seconds. I have tried all other formats like MD, time etc. and also changed properties of data box of SCADA in every way (like data in decimal, word, string format) but not successful. Please suggest a solution. Regards, GAURAV TRIPATHI
Gaurav_79 Posts: 33 Rating: (1)
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2/10/2011 6:55 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Dear member Check the following codes, use of FC40 TIM_S5TI one of IEC standard functions. [code] L MW 0 //unsigned value from WINCC ITD L 1.000000e+003 *R T MD 4 //TIME CALL "TIM_S5TI" //TIME TO S5 TIMER IN :=MD4 RET_VAL:=MW8 [/code] Attachment result.jpg (2255 Downloads)
	Last edited by: hdhosseini at: 2/10/2011 6:58 PM //attachment added Demo Channel on Youtube
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2/10/2011 7:01 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	FC40 TIM_S5TI Description The function FC40 converts the data type format TIME to the format S5TIME. The value is rounded down during conversion. If the input parameter is greater than the S5TIME format allows (greater than TIME#02:46:30.000), the result S5TIME#999.3 is output and the binary result (BR) bit of the status word is set to "0". Parameter Declaration Data Type Memory Area Description IN INPUT TIME I, Q, M, D, L, Const. Input variable in format TIME RET_VAL OUTPUT S5TIME I, Q, M, D, L Return value in format S5TIME
	Demo Channel on Youtube
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2/12/2011 5:41 AM	Rate (0)
Gaurav_79 Posts: 33 Rating: (1)	Dear Hdhosseini, Thanks for reply. I have made program as per your suggestion and screenshot provided by you. But unfortunately, I am not getting the final result. FC40 is not converting time to s5 time. I have attached the screenshot. Please tell me what I am doing wrong... I directly given input to FC40 in time format for trial, but still o/p at FC40 was S5T#0ms. Regards, GAURAV Attachment screenshot1.JPG (1496 Downloads)
Gaurav_79 Posts: 33 Rating: (1)
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2/12/2011 10:00 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Hi I think you have problem with addressing in your program.Always select odd or even addresses (even linke MD0,MD4,...). [code] L MW 0 //unsigned value from WINCC ITD L 1.000000e+003 *R T #TIME //DWORD CALL "TIM_S5TI" //TIME TO S5 TIMER IN :=#TIME RET_VAL:=MW8[/code] BR
	Demo Channel on Youtube
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2/13/2011 1:17 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 11/12/2024 Posts: 3026 Rating: (1057)	Hello Gaurav_79 the problem is a bug in hdhosseini's example logic. Avariable of format TIME is simply a DINT value in milliseconds (e.g. L#1000 = 1sec, see alsoS7 help for more on the format of a TIME type variable). Multiplying aDINT value with a REAL value via a REAL multiplication is of course bound to fail, so change the logic to something like below (note: omitted the ITD conversion which is only needed if the MW 0 could contain negative values whichis better be unlikely in case of a Time setpoint): [code]L MW 0 // Time setpoint as INT in full seconds L 1000// 1000ms/sec D T MD 50 // Time setpoint as DINT in ms[/code] Having said that, if you use a DINT with linear scaling in WinCC you can even save you the hassle of the above conversion logic, alternativelyyou could use the "dwordtosimaticbcdtimer*"adapt format in WinCC and below are a few selected links which can be found with a simple search on this subject: Simatic Timer tag S5Time value set from WinCC Linear scaling in WinCC How can you have a tag of the S7 data type S5TIME displayed in WinCC? Last but not least, hdhosseini's example logic delivers the correct result if executed in PLCSIM, this is however a (somewhat known) bug in PLCSIM(and one that Siemens will hopefully fix one day soon). I hope this helps
	Last edited by: fritz at: 2/13/2011 1:20 AM 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 3 thankful Users hdhosseini s_vb Mukesh77777

2/13/2011 6:07 AM	Rate (0)
KayBee Posts: 241 Rating: (7)	hi, Gaurav, You should have your tag type is "S5TIME" in WinCC, If you are moving S5Time from one MW word to other DB memory please make sure that DB word also declared as S5TIME. Check the attachement. Attachment s5t.JPG (1218 Downloads)
KayBee Posts: 241 Rating: (7)
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2/13/2011 6:23 PM	Rate (0)
Gaurav_79 Posts: 33 Rating: (1)	Dear Fritz/Plectrotion, Thanks a lot for providing this valuable information. I will check and modify my program on Tuesday and revert back to you with the result... Regards, Gaurav
Gaurav_79 Posts: 33 Rating: (1)
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This contribution was helpful to 1 thankful Users fritz

2/16/2011 7:44 AM	Rate (0)
Gaurav_79 Posts: 33 Rating: (1)	Dear frends, Thanks a lot for your help.. I did it today using "dwordtosimaticbcdtimer" in wincc. Now on giving a value of 50000 at SCADA, I get 50sec value at simatic timer. This rectified my problem tomuch extent. Now kindly refer to my another problem 'Calculation of time of a timer according to Farmula (Time=Distance/Speed)' in step7/step7 lite forum and suggest me the solution. Thanks and regards, GAURAV
Gaurav_79 Posts: 33 Rating: (1)
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This contribution was helpful to 1 thankful Users fritz

4/10/2015 12:26 PM	Rate (0)
Kashir Bronze Member Joined: 10/24/2012 Last visit: 10/18/2024 Posts: 310 Rating: (21)	hdhosseini Dear member Check the following codes, use of FC40 TIM_S5TI one of IEC standard functions. [code] L MW 0 //unsigned value from WINCC ITD L 1.000000e+003 *R T MD 4 //TIME CALL "TIM_S5TI" //TIME TO S5 TIMER IN :=MD4 RET_VAL:=MW8 [/code] Dear Expert, I tried ur given code in my program it works for 1 timer but when i applied it on about 40 timers it jst give me a value of 2h46m and it doesnt change with the change in time through my MP277. For this purpose i call fc 40 for each timer.
	Kashir Saeed. If this information helps you,then you can use the rate function.
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