3/15/2016 11:14 AM | |
Joined: 3/14/2008 Last visit: 9/20/2024 Posts: 2095 Rating: (936) |
Hello guys, Hardware: CPU 417 + FC300 Danfoss device through profibus PPO7 Module consistent For use in PCS7 and Step7. There are a lot of examples, but these feature S7300 CPU's. That is not exactly what I need. Problem: I want to create a code (SCL) where I need to get the IW and QW addressing of a device by inputting a profibus adres. So, If profibus address is 50, it should get the input starting adres IW and output starting adres QW. Then I have to write the CTW (Control Word) back to the profibus drive. I'm not sure how to do this. I know SFC 14/15 is available where data >4bytes is read/written. But my CPU supports PIP and thus I will not need SFC 14/15. Correct? How can I read and write the data to the profibus device? Do I need another SFC for example: SFC59: RD_REC and SFC58: WR_REC or SFC5: GADR_LGC (which has a problem with a max of 21 addresses?) |
If I could help you, you can use the RATE button. Thank you. |
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11/3/2017 9:44 AM | |
Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating: (172) |
New question published by nkr is split to a separate thread with the subject Example program for the integration of Danfoss drive in the PCS7 project. Best regards |
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