4/1/2015 9:57 PM | |
Posts: 5225 Rating: (1193) |
Personally, I thing the 1sec resolution is much to fine. Probably the 1min resolution will do just fine. You can use SM0.4 as a trigger with -[ P ]- positive edge.. With what we have available today, the S7-1200 will be my 1st choice because of retention. However on the S7-200 the battery cartridge (6ES7 291-8BA20-0XA0) should do okay (see also your post [LINK]). As for the coding.. nothing stops you to have several counters. Storing these 3 INT values will not be that much more of a problem. Does this theoretical discussion help? |
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