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Measuring PCS7 Function Block execution time accurately

Created by: Marif at: 4/20/2012 6:44 PM (2 Replies)

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4/20/2012 6:44 PM	Rate (0)
Marif Posts: 4 Rating: (0)	Hi, I have created a Function Block with SCL language which does some complex mathematical calculations. Now I need to know the execution time of the function block. Because it will be called cyclically through OB32, so I need to know if the cycle time is more than the execution time of the FB itself. The mathematical function is quite complex and I am assuming it will take significant time to execute but I need to know exactly how much time it is taking. Thanks in advance. Arif
Marif Posts: 4 Rating: (0)
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4/20/2012 9:59 PM	Rate (0)
Dec Gold Expert Joined: 5/19/2006 Last visit: 12/3/2024 Posts: 549 Rating: (107)	You can use SFC1 READ_CLK once at the beginning of your FB and store the time and once at the end of your FB and make the diff. Dec PS Or use TIME_BEG and TIME_END FB12 &13 from CFC Lib.
	Last edited by: Dec at: 4/20/2012 10:01 PM
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4/20/2012 10:04 PM	Rate (1)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 12/12/2024 Posts: 6858 Rating: (1365)	Marif Hi, I have created a Function Block with SCL language which does some complex mathematical calculations. Now I need to know the execution time of the function block. Because it will be called cyclically through OB32, so I need to know if the cycle time is more than the execution time of the FB itself. The mathematical function is quite complex and I am assuming it will take significant time to execute but I need to know exactly how much time it is taking. Thanks in advance. Arif Hello , This also may help Execution time of an SCL source code Best regards, Hamid Hosseini
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