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SFB4 TON

Created by: WildChild at: 10/6/2011 1:59 PM (2 Replies)

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10/6/2011 1:59 PM	Rate (0)
WildChild Posts: 26 Rating: (0)	I'm a Siemens dummie, I'm begining... I need to use this SFB4, but I don't know if I need to create one DB instance each time I use a TON, or if it's necessary to create only one DB for all times I use the TON in my program. Thank you very much!
WildChild Posts: 26 Rating: (0)
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10/6/2011 2:35 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 10/5/2024 Posts: 12283 Rating: (2685)	Hello WildChild; Siemens recommends that you create a different instance-DB for every call of your FB. This will make your program clear and limit confusion. You can check out chapter 5 (FBs and DBs)of the following manual for more guidelines: SIMATIC Working with STEP 7 V5.5 Hope this helps, Daniel Chartier

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10/8/2011 9:17 PM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi You can use a SFB 4 in a FB in Stat Interface, so that the number of Instance DB will be reduced, but you will need to create at least one instance DB for the FB Alternatively you can use the S5 timers, have fun....
	Jazz
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