PROTEUS
OMNTEC
Mfg., Inc., 2420 Pond Road, Ronkonkoma, NY 11779
Phone (631) 981-2001 Fax (631) 981-2007 www.OMNTEC.com
File Name: DE00014 DE00015 DE00020-10 rev2045.docx Page 13 of 71 Rev Date: 10-15-2021
Serial Interface Manual
OEL8000III Series Models K/X
Now lets convert the following ASCII Hex format back into a decimal number.
Bits
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+--+-----------------------+---------------------------------------------------------------------+
| 0| 1 0 0 0 0 0 1 0| 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 |
+--+-----------------------+---------------------------------------------------------------------+
S Exponent Mantissa
Sign bit is 0 = positive number.
The exponent value of, 10000010 Hex = 2^1 + 2^7 = 130 decimal
130 - 127 = 3
And a mantissa value of, 10010000000000000000000 Hex = 2^22 + 2^19 = 4718592 decimal
bit 22 = 0.5, bit 21 = 0.25, etc
1 + (4718592 / 8388608) = 1.5625
OR
1 + ( 0.5 + 0.0625 ) = 1.5625
thus the number is,
1.5625 * 2^3 = 12.5
