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abrupt converstion of Ladder into STL

Created by: innocent guy at: 7/27/2009 4:07 PM (3 Replies)

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7/27/2009 4:07 PM	Rate (0)
innocent guy Posts: 25 Rating: (0)	Dear Experts! I have designed7analog loops in S7 SIMATIC version 5.4 in LADDER LANGUAGE; out of these 7, 6 are in OB1 & 1 loop is in OB32. TheseAnalog loops contain scaling bock(FC105),few multipliers & adder block as well ! On my PC,theryare running & Simulatingsuccessfully in LAdder language ( have designed those loops on my PC as well)But whenItryto run thesame fileon other PC having the same version of SIMATIC& same enviroment conditions;some of the loops ( not all ) automatically gets converted into STL & those STL loopsareunable to convert in ladder inspite of giving command from main menu( STL -->ladder). I have tried it on 4 different PCs but problem is same! I want to know, How can I fix this problem & bring back those STL loops into LADDERon other PCs? I would appreciate and thankful to you for providing assistance. Regards
innocent guy Posts: 25 Rating: (0)
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7/27/2009 5:11 PM	Rate (0)
Denilson Pegaia Diamond Member Joined: 9/23/2005 Last visit: 1/16/2026 Posts: 4449 Rating: (1487)	Hi, I don't know the cause, but I suggest that you please check: 1 - If both PC has the same softwares installed: start->simatic->information->installed software. 2 - Check the aditional packages of your program: in the programm root, right button, Object properties, required software packages. 3 - Check the language / mnemonics in both PC (SIMATIC Manager -> options -> customise -> General.
	Denilson Pegaia Siemens Industry Sector Technical Support
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7/27/2009 9:10 PM	Rate (0)
H-H Platinum Member Joined: 7/2/2008 Last visit: 12/21/2025 Posts: 929 Rating: (309)	Hello innocent guy, in addition to what Pegaia had said, I knowa reason that might cause such problem. When you useladder instructions for mathematics, you have to be carefulwith data types. For example Adding integers, It should be like this, MW10 (declared as integer) + MW12 (declared as integer) = MW14(declared as integer). But maybe you have done something like this on your PC, MW10(delcared as Integer) + MW12(declared as word) = MW14(declared as word) Now Ladder editor will accept it as long astype check of addresses is not enabled. When you view this code in another ladder editor (another PC) thatenables type check of addresses, it will automatically view this code in STL because it won't be accepted in ladder. You can test it by going in ladder editor window Options>Customize>LAD/FBD and see if type check of addresses is enabled or not. Best regards. H-H
	Last edited by: H-H at: 7/27/2009 9:11 PM
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7/29/2009 5:00 PM	Rate (0)
innocent guy Posts: 25 Rating: (0)	Thanks H-H for ur reply...u r great..Its done :)
innocent guy Posts: 25 Rating: (0)
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This contribution was helpful to 1 thankful Users H-H

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