11/9/2007 3:24 PM | |
Joined: 4/24/2006 Last visit: 10/18/2024 Posts: 8746 Rating: (1169) |
Hello, Have you seen this thread: /tf/WW/en/Posts/12284 Perhaps it's useful Best regards, Wizard |
11/9/2007 4:42 PM | |
Posts: 2 Rating: (0) |
Hello Wizard, Thanks verry much, Best regards Cuong |
11/9/2007 8:55 PM | |
Joined: 1/5/2007 Last visit: 4/7/2023 Posts: 1690 Rating: (580) |
Hello Cuong, í am happy, that my EXCEL-calculation can help you. Because the LOGO can only work with integer values and your output range (0 to 30) is very smaler than your input range (1,5 V to 3,5V and in LOGO-units 150 to 350) the amplifier output has a bad quality (because GAIN is verry small). You can get a better result quality, if you multiply your wanted output rangewith 10 (as example). That means: 150 (1,5 V) to0 * 10 = 0and 350 (3,5 V)to 30 * 10 = 300. To display the correct output value in this case (means 0.0 to 30.0), you must set the number of decimals = 1 (that is equalof a division by 10) !!! Then compare the results...you see the differences comming from rounding to integer values of the ampifier! Best regards Betel |
==> Meine TAG-Listen: "deut." |
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