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Acces to F_GLOBDB Data

Created by: chilibangcarne at: 2/28/2010 10:07 PM (3 Replies)

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2/28/2010 10:07 PM	Rate (0)
chilibangcarne Posts: 9 Rating: (0)	Hi, How they said in th e help you can acces to some safe constant from the F_GLOBDB generate after you compile the hardware configuration. So the DB exist, but I can't acces for example to the bool value "F_GLOBDB".RLO1 or "F_GLOBDB".RLO0. Error tab say to me that Symbol RLO0 is not a component of F_GLOBDB..... Cheers Attachment post.JPG (269 Downloads)
chilibangcarne Posts: 9 Rating: (0)
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3/1/2010 12:25 AM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 6/8/2023 Posts: 2968 Rating: (1025)	chilibangcarne ...So the DB exist, but I can't acces for example to the bool value "F_GLOBDB".RLO1 or "F_GLOBDB".RLO0. Hello chilibangcarne use"F_GLOBDB".VKE0 where you need anRLO of 0 and "F_GLOBDB".VKE1 where you need anRLO of 1 (Siemens uses the German "VKE" word for this irrespective of the Step 7 language setting. While this may seem"odd" they do however at least state the correct German "VKE" related variable names in the Safety programmig manual). I hope this helps
	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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3/1/2010 8:10 PM	Rate (0)
chilibangcarne Posts: 9 Rating: (0)	Hi Fritz Thanks for you answer, it will really helpful for me. But I still don't anderstand with in the help they talk about that : Boolean Constants "0" and "1" If you require Boolean constants "0" and "1" in your safety program to assign parameters during block calls, you can access the "RLO0" and "RLO1" variables in the F-shared DB using fully qualified DB access ("F_GLOBDB".RLO0 or "F_GLOBDB".RLO1). Anyway, thanks again.
chilibangcarne Posts: 9 Rating: (0)
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3/2/2010 12:05 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 6/8/2023 Posts: 2968 Rating: (1025)	chilibangcarne .. But I still don't anderstand with in the help they talk about that : Boolean Constants "0" and "1" If you require Boolean constants "0" and "1" in your safety program to assign parameters during block calls, you can access the "RLO0" and "RLO1" variables in the F-shared DB using fully qualified DB access ("F_GLOBDB".RLO0 or "F_GLOBDB".RLO1). Hello chilibangcarne I see where the confusion comes from. The help I was refering too is from the manual S7 Distributed Safety - configuring and programming(ref. page 65, "Differences betwen F-LAD/F-FBD and standard LAD/FBD"), which has the correct "VKE" related variable names in it. The help you are refering too is from the inbuilt Step 7 help about "Differences betwen F-LAD/F-FBD and standard LAD/FBD) and should be identical to the manual, but unfortunately it isn't and uses the wrong RLO related names that you are refering too. Let's hope Siemens will fix this "typo" with the next Step 7 SP (I'll send a PM to the Moderator who can pass this on to the Step 7 team).
	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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