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Assigning S7_m_c parameter to an array

Created by: dzwilu at: 2/10/2009 11:48 AM (4 Replies)

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2/10/2009 11:48 AM	Rate (0)
dzwilu Bronze Member Joined: 12/3/2008 Last visit: 3/22/2022 Posts: 146 Rating: (4)	Hi, I have a DB that consists of two integers and an array of int. I would like to generate tags to all the array fields. But it is impossible to set S7_m_c = true to this data type. I have no problem with the simple integers, but I need to access the array... Somebody knows how?? Regards dzwilu

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2/10/2009 12:58 PM	Rate (0)
billwest Posts: 510 Rating: (119)	sorry but you can't do that with arrays or UDTs. Check out the link http://support.automation.siemens.com/US/view/en/14054155
billwest Posts: 510 Rating: (119)
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2/10/2009 1:04 PM	Rate (0)
dzwilu Bronze Member Joined: 12/3/2008 Last visit: 3/22/2022 Posts: 146 Rating: (4)	Is there any other wat to access the elements of the array?? I really need it Regards dzwilu

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2/10/2009 3:18 PM	Rate (0)
Sydney Gold Member Joined: 1/4/2008 Last visit: 9/26/2024 Posts: 703 Rating: (96)	Hello, if you don't mind the number oftags, you can use a standalone integers with desired attribute and acces them in the PLC with indirect addressing... Regards Sydney

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2/10/2009 3:23 PM	Rate (1)
dzwilu Bronze Member Joined: 12/3/2008 Last visit: 3/22/2022 Posts: 146 Rating: (4)	I have found the solution, maybe it will be helpful to someone. You can create a structure tag in winCC, a add there a number of tags as specified in the DB, you can set the address-offset for every tag, so you can access every element of the DB. After that you create a new tag, with the type of the structure, already created, and just set the start address for this tag. It works :) Regards dzwilu

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