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4/30/2009 5:54 PM | |
Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181) |
Hello, I suggest you to start with Working with STEP 7 V5.4 Getting Started Also you can use manuals from installation directory of Simatic manager. Hope this will helps. Best regards Hristo Mihalev |
5/1/2009 6:42 AM | |
Posts: 557 Rating: (64) |
hi MB0===> Memory address which contain 8bits binary value MW0===> Memory address which contain 16bits binary value MD0===> Memory address which contain 32bits binary value these memory (Flag) we can use additon, subtraction ,comparsion,analog signal scaling. but i will suggest you that befor develop the logic,check the cpu performance data. cpu performance data= I,Q,M,DB.FC.FB,SFC,OB'S,T,C these all have some range which vary according to cpu to cpu. so you should know the range of the cpu.you can find in manual or if you are connect with plc on simatic manager then check the online property of cpu put ctrl D then you will get the online property of cpu. in online property check the performance data . it will show you the range of all memory. for example m0.0 to m255.7 it mean you can not use m256.0, otherwise when you download program cpu detect the programming error. find the attachment which is have some power point presentation.hope this will help you. regards AttachmentePRO1_08_DigitalOp.zip (165 Downloads) |
5/1/2009 12:55 PM | |
Posts: 2 Rating: (0) |
Thanks eastern for your good instructions. thanks again |
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