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TIP: How to create a Standard DB in STEP 7 V12

Created by: Denilson Pegaia at: 5/18/2013 11:21 PM (7 Replies)

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5/18/2013 11:21 PM	Rate (1)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 9/22/2023 Posts: 4235 Rating: (1366)	Hi, to create a Standard DB in STEP 7 V12, create a DB as usual (add new, etc...). After created, right mouse click, properties, attribute and uncheck the option "optimized'.
	Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 2 thankful Users Tomy Master Wilson757

5/20/2013 11:14 PM	Rate (0)
Eric K Posts: 25 Rating: (0)	Exactly what is the functional difference between Optimized and non-Optimized, and what changes between Step7 5.5 and Step7 V11/12 with regard to these options?
Eric K Posts: 25 Rating: (0)
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5/21/2013 2:17 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 9/23/2023 Posts: 2987 Rating: (1034)	Hello Eric K have a look at the FAQ What differences should you watch out for between optimized data storage and the standard type of block access in STEP 7 (TIA Portal) V12? which should tell you everything you ever wanted to know about the differences between "optimized" and"standard"DB's.
	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 1 thankful Users Denilson Pegaia

10/7/2013 6:22 PM	Rate (0)
Nikzitronik Posts: 150 Rating: (17)	Dear Pegaia, The procedure you describe only seems to work for global DBs and not instance DBs. Am I missing something? Regards Nik
Nikzitronik Posts: 150 Rating: (17)
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10/7/2013 6:42 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 9/21/2023 Posts: 13714 Rating: (2240)	Nikzitronik Dear Pegaia, The procedure you describe only seems to work for global DBs and not instance DBs. Am I missing something? Regards Nik I thought I read something in a TIA Portal programming guideline PDF last week that stated all instance DBs are automatically configured as optimized for S7-1200/1500 and s7-300/400 compatible (standard) for those PLCs. Is this not what you are seeing?
	science guy
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10/7/2013 7:04 PM	Rate (0)
Nikzitronik Posts: 150 Rating: (17)	This exactly what I am talking about. It looks like this is a fixed option in the DB attributes and I hope this option can be change somehow. When we use third party HMIs we need to have absolute addresses inthe DBs to access the DB Data. Regards
Nikzitronik Posts: 150 Rating: (17)
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10/7/2013 7:54 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 9/21/2023 Posts: 13714 Rating: (2240)	Nikzitronik This exactly what I am talking about. It looks like this is a fixed option in the DB attributes and I hope this option can be change somehow. When we use third party HMIs we need to have absolute addresses inthe DBs to access the DB Data. Regards You can always map or copy the data from the instance DB to a custom HMI-specific DB. For Siemens panels, they can read the tag names without having to know the absolute address. To me, it seems like Siemens is trying to make it easy to use their components and not so easy to use 3rd party components.
	science guy
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10/7/2013 8:08 PM	Rate (0)
Nikzitronik Posts: 150 Rating: (17)	Yes indeed. The workaround would be to create a global DB with absolute addresses and move data from the instance DB to the global DB. I dont see why siemens would try to make it hard to use 3rd party HMIs. Sometimes you have clientes expanding Nd already having new hardware that they dont want to throw away. At such situations you need Totaly integrated automation
Nikzitronik Posts: 150 Rating: (17)
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