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floating point

11/18/2010 9:36 AM	Rate (0)
ryan03 Experienced Member Joined: 11/9/2009 Last visit: 12/19/2025 Posts: 41 Rating: (0)	hi hello can any body help me in floating point for example is 1.000000e+000 my question is why we must put (e+000) at the end also the meaning.i simulate these in plc simulation and it regester 1065353216 please can any body explaine to me thanks.

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11/18/2010 11:13 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 1/16/2026 Posts: 9105 Rating: (1204)	Dear ryan3, Please have a look at Online Help of Step 7 Search for Floating point then you will find more information Best regards, Wizard

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11/18/2010 11:55 AM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 1/5/2026 Posts: 6892 Rating: (1368)	Dear member Real numbers are 32-bit variable (e.g. positive side from 1.17549410^-38 to3.40282310³⁸ ).The length of a Real number is as same as a DINT number, But please note that bit pattern of a real number is totally different from a DINT. In a real number bits 0 to 22 are considered as mantissa and bits 23 to 30 are considered as exponent. The last bit is the sign. check this example :100.0 is interpreted like 1.0e+2 in STEP7. Check this link for basic discussion of mathematics on scientific notation. Regards
	Demo Channel on Youtube
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11/18/2010 8:51 PM	Rate (0)
ryan03 Experienced Member Joined: 11/9/2009 Last visit: 12/19/2025 Posts: 41 Rating: (0)	thank you sr now i understand it thank you very much.

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