In an Arinc 429 Word label-representing heading is 320, this is represented in bits 1- 8 as
- 01011001.
- 00001011.
- 01101000.
H
hasdim_1969 asked · 24 Dec 2012
HOW???
Community Comments (7)
P
PART66Online
25 Dec 2012
320 should be converted to octal and reversed because MSB transfered first.
H
hasdim_1969
27 Dec 2012
thanks
J
JD2016
29 May 2017
A load of 1's and O's is hardly Octal!
P
PART66Online
30 May 2017
JD2016, you think something is wrong here?
J
JD2016
31 May 2017
Yes! If as you say, 320 should be converted to Octal, then 320 in octal is 500. A string of 1's and 0's is obviously Binary. I understood that an ARINC 429 word was written in Binary anyway. See EHJ Pallett - Aircraft Instruments & Integrated Systems - 3rd Edition Page 159 - Figure 6.4.
:)
:)
P
PART66Online
31 May 2017
Not like this. In ARINC429 label is binary coded octal (8 bits):
000 010 11 = 0 2 3
You have to divide label by 3 and 3 and 2 bits. And then convert each set to octal.
Inversed because usually arinc429 word is represented in reverse order because label is transmitter MSB first but data LSB first. Question is a little bit miss-worded but still the only possible option is B.
Very detailed explanation here: aviftech.com/files/2213/6387/8354/ARI...
000 010 11 = 0 2 3
You have to divide label by 3 and 3 and 2 bits. And then convert each set to octal.
Inversed because usually arinc429 word is represented in reverse order because label is transmitter MSB first but data LSB first. Question is a little bit miss-worded but still the only possible option is B.
Very detailed explanation here: aviftech.com/files/2213/6387/8354/ARI...
J
JD2016
31 May 2017
Thanks.
It really is designed to confuse!
It really is designed to confuse!
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