Posted 27 Sep 2006 hello i never convert a step 5 program to step 7 that conversion run well??? its good ??? i´am try to find opinion tanks Share this post Link to post Share on other sites
Posted 28 Sep 2006 I have the same questions like you. Even I don't have real experiance, I think it will depend on the conversion parameters such as old S5 PLC model and new S7 PLC model. Sometimes you need to modify the FBs, OBs, PBs,....etc,. Atleast, you need to check the converted I/O assignments. (Just only my opinion, lets listen the experts' speech) Share this post Link to post Share on other sites
Posted 28 Sep 2006 (edited) hello, take the converter from siemens. you will have problems with: permuted parameters (function calls) display function calls in LAD/FBD communication modules LIR/TIR commands and many more! for some problems there are tools by www.sps-concept.de plcchecker Edited 28 Sep 2006 by plcchecker Share this post Link to post Share on other sites