KMPS-1-64 Manual
12/18
KM 8000 Rev. A
Page 19 of 40
Copyright © 2018 Kulite Semiconductor Products, Inc.
All Rights Reserved.
4.2.3 BInary format
Data is output in engineering units as IEEE-754 32-bit floating point numbers. A 1 byte integer
for the channel number is followed by the 32-bit channel data.
Example
: (in hexadecimal)
(0x00)(0x3F)(0xA0)(0x75)(0xF7)
(0x08)(0x3C)(0xA3)(0xD7)(0x0A)
This data represents Channel 0 at 1.2536 PSI and channel 8 at 0.02 PSI.
4.2.4 BInary TEmperature format
The same as the BInary format but the temperature data is also output. Each time the
temperature data is read it is output as a 32-bit floating point number. The channel numbers
for the temperature are 128 higher than the actual channel number
Example
: (in hexadecimal)
(0x80)(0x3F)(0xA0)(0x75)(0xF7)
(0x88)(0x3C)(0xA3)(0xD7)(0x0A)
This data represents Channel 0 at
4.2.5 BInary PErcentage format
As with Text Percentage the data is output as a percentage of fullscale but this time as a
binary 32-bit integer. The percentage full scale is given as a 4 byte number in two
’s
compliment with the maximum value being 800 and the minimum -800.
Example
: (in hexadecimal)
(0x00)(0x00)(0x5F)(0xD8)(0xAE)
(0x08)(0XF8)(0XB1)(0x5B)(0x57)
The easiest way to convert these 4 bytes into a single decimal number. If this number is equal
to or smaller than 2147483647(0x7FFFFFFFh) than it is positive. Divide the number by
2147483647 and multiply by 800. If it is larger than this than divide by the same number and
multiply by 800, then subtract 1600 from this number. Two examples are given below:
(0x00)(0x00)(0x5F)(0xD8)(0xAE) => 0 = 6281390 => 0 = 9.38
(0x08)(0xF8h)(0xB1)(0x5B)(0x57) => 8 = 4172372823 => 8 = 1554.33 => -45.67
Of course many programs can handle tw
o’s compliment numbers automatically and can do
this conversion process.
4.2.6 IENA
4.2.6.1 IENA 8
Data is output 8 channels at a time inside of IENA packet structure. Pressure data is in
engineering units as 32-bit floating point numbers. See
Note: Because of high overhead on the IENA 8 packet, data rates of 125 samples/second or
less must be used for Ethernet output.
4.2.6.2 IENA 64
Data is output 64 channels at a time inside of IENA packet structure. Pressure data is in
engineering units as 32-bit floating point numbers. See
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