10/17/2014 4:40 PM | |
Joined: 8/27/2010 Last visit: 4/13/2024 Posts: 417 Rating: (37) |
Hi! I can't remember any possibilities to measure the current cycle scan time elapsed value. Please see my answer in this topicfor more detailed information. For ramp function you should call it in predifined ranges. You can use cyclic interrupt OBs. Example: OB38 have scan time 10 ms. Hereyou can find example of ramp function for TIA. Please note, that you must call this block in cyclic interrupt OB. Cycle-independent ramp function can be foundhere. (NOT for TIA) |
Last edited by: olloy at: 10/17/2014 4:43 PMLast edited by: olloy at: 10/17/2014 4:41 PMspelling |
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10/17/2014 5:22 PM | |
Posts: 9 Rating: (1) |
Thanks olloy. I downloaded the PDF you mentioned. I see that it is for S7-300/400. How can I tell what does/does not apply to S7-1215C? I have run into many things that do not work for both.
Thanks again, I didn't know about this function. I am not sure that it will work in my case as I need to be able to step, ramp and hold my output value depending on various factors. I guess my situation is a bit more complicated than my original post. I wanted to keep the details simple so as to focus on the ramping part alone. Best regards.
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10/17/2014 5:37 PM | |
Posts: 9 Rating: (1) |
Thanks Yatin for the prompt replies. I am going to try these options and see which works best for me. Best regards. |
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