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FIFO & ADD_T_TBL

Created by: khekd at: 11/24/2009 4:13 PM (6 Replies)

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11/24/2009 4:13 PM	Rate (0)
khekd Posts: 3 Rating: (0)	Converting a S7-200 MicroWin to Step7 Basic on a S7-1212 CPU. The original program has a FIFO and AD_T_TBL command for buffering. I don't see anything like that in Step7 Basic V10.5. Does anyone know where I can maybe find a library with this in it? Regards, Khek
khekd Posts: 3 Rating: (0)
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11/26/2009 1:54 PM	Rate (0)
Robster Gold Expert Joined: 5/28/2008 Last visit: 5/15/2023 Posts: 1343 Rating: (139)	Hi, you're right, S7-1200 hasn't got Table-function. And there is also no library avaible. I think you have to write something for yourself. Maybe the use of Arrays can be usefull. regards

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11/26/2009 8:26 PM	Rate (0)
Tiago_Tre Experienced Member Joined: 10/30/2008 Last visit: 5/24/2023 Posts: 64 Rating: (2)	Good Fun!
	Tiago Martins Machado Joinville - SC - Brasil
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11/30/2009 3:13 PM	Rate (0)
khekd Posts: 3 Rating: (0)	Thx Robster, It sounds like a load of fun! I guess this product is still very immature. Either that or they want us to keep using the S7-200. Khek
khekd Posts: 3 Rating: (0)
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12/18/2009 9:29 PM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 5/26/2023 Posts: 4184 Rating: (1342)	Hi, With SP2 of STEP7 Basic (http://support.automation.siemens.com/BR/view/en/39741113 ) it is possible to access single elements indirectly in an array (news instructions: FieldRead and FieldWrite). This could be used (not 100% easy) to implement FIFO functions.
	Denilson Pegaia Siemens Industry Sector Technical Support
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12/21/2009 1:21 PM	Rate (0)
khekd Posts: 3 Rating: (0)	Thanx Pegaia! I'm ready to go back to V10 and do everything in STL!
khekd Posts: 3 Rating: (0)
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5/1/2011 7:44 PM	Rate (0)
Rohit Bhatia Posts: 15 Rating: (0)	Hello khekd I've made a block for buffering data in the S7-1200. Please have a look at this entry in the forum. It might be helpful to you perhaps. Please note, this is provided to assist you and I / my company can not claim any responsibility even though the block has had rigorous tests. Hope this helps. Best regards, Rohit Bhatia
Rohit Bhatia Posts: 15 Rating: (0)
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