Industry Online Support
Technical Forum
Navigation
Rating 
Thanks 5
6 Entries
| 5/16/2014 8:40 PM | |
Joined: 1/24/2014 Last visit: 3/13/2024 Posts: 119 Rating:
|
i attached PDF which contain program logic... the problem am facing is that without any input , 16#0100 is changing continuosly , i.e 16#0100 then 16#0101 automatically after i think 1 second.. i dont kknow its reason. kindly tell me..
AttachmentMain (OB1).pdf (118 Downloads) |
| 5/17/2014 2:57 PM | |
|
Posts: 5225 Rating:
|
Dear mehtabahmed , I do not know what your background is. It may be helpful if I knew. I assume we are starting at the first chapter. Instead of "telling" you the answer.. 1. Please refer to the attached image. It gives a clue to how double word / word / byte / bits are interlinked in SIEMENS systems. 2. Scanning occurs left to right and then top to bottom. Depending on where you put your cursor when monitoring is were you'll see a result. Lower down networks have the lsat say; these carry priority. I hope for your positive response. w |
| 5/17/2014 5:33 PM | |
|
Posts: 165 Rating:
|
Hello mehtabahmed First you should very clear abuout Bit,Byte,Word,DWord patten in Siemens system. In the first look of your programm it is very clear that you are using MW 100 which contains MB100 & MB101, further MB101 contains M101.0, M101.1 and M101.2 which you are using in your logic. you should use bit from byte other than MB100 and MB101. Hope you understand well. |
This contribution was helpful to
|
|
Follow us on