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PLC Datat Type (UDT) is lost after Migrating HMI Project

1/8/2018 7:40 AM	Rate (0)
Ahmad.Izmeqna Member Joined: 12/16/2017 Last visit: 3/11/2025 Posts: 2 Rating: (0)	Hello, After I migrated the HMI Project from Wincc Flex. 2008 SP2 to Wincc V13, one of the PLC Data Types (UDT) is lost and I am unable to recover it. The related tags are unable to fetch their status from the PLC (S7-300). Is there a way to recover the UDT or another procedure during migration in order not to loose the UDT? I appreciate your feedback. Regards,

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1/8/2018 3:19 PM	Rate (0)
cumulus Platinum Member Joined: 9/27/2007 Last visit: 12/18/2020 Posts: 993 Rating: (103)	Hey Ahmad.Izmeqna, under following link you can find some information about WinCC flexible migration. https://support.industry.siemens.com/cs/ww/en/view/77430539 With best regards cumulus
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1/19/2018 3:54 PM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 4/25/2025 Posts: 15355 Rating: (1895)	Hello Ahmad PLC Datatype in WInCC flexible ?? here you cannot use PLC Datatypes in a direct way. You had to use a Structures. And with the instances of these structures you can adress the PLC Datatype in an absolute way. TIA Portal Since V13 SP1 was the first Version in which you can adress symbolic a whole PLC Datatype in HMI. Structures in WInCC flexible are migrated to HMI UDTs in the Project Library. So look here. You also have the same possibilities to reconnect HMI Tags wif the PLC Tags in the HMI Tags dialog. Bye Murof
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