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Access parameter channel (PKW) without using SFC14/15

Created by: Cristiano F. at: 10/1/2024 1:30 PM (2 Replies)

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10/1/2024 1:30 PM	Rate (0)
Cristiano F. Regular Member Joined: 4/10/2014 Last visit: 10/10/2024 Posts: 8 Rating: (2)	Hi everyone, Is it possible to access the parameter channel (i.e. PKW area) of a Profibus slave directly using the Peripheral (Process Image) area without the need of SFC 14/15, depending on which S7 CPU you are using? Searching in this forum, I have found this information. Thanks in advance.
	Last edited by: Moderator_Lan at: 10/01/2024 13:42:51 link optimized
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10/1/2024 2:35 PM	Rate (1)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	I'd expect that.
	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 Cristiano F.

10/4/2024 6:20 PM	Rate (0)
Cristiano F. Regular Member Joined: 4/10/2014 Last visit: 10/10/2024 Posts: 8 Rating: (2)	Thanks Jacek. First I tested some piece of code using an old CPU 315/2 DP with FW 1.0. Then I had the opportunity to validate the same code using a 315 CPU with FW 3.2, and I successfully accessed the PKW channel directly, without the need of SFC 14/15.
	Last edited by: Cristiano F. at: 10/04/2024 18:20:58
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