B-4
|
ni.com
Appendix B
IRIG Protocol Overview
19
Position identifier P
2
20 to 23
Units of hours
25 to 26
Tens of hours
29
Position identifier P
3
30 to 33
Units of days
35 to 38
Tens of days
39
Position identifier P
4
40 to 41
Hundreds of days
49
Position identifier P
5
50 to 53
Units of year or control function bits
55 to 58
Tens of year or control function bits
59
Position identifier P
6
60 to 68
Control function bits
69
Position identifier P
7
70 to 78
Control function bits
79
Position identifier P
8
80 to 88
Nine lowest significant bits of time of day in straight binary seconds
(bit 80 -> 2
0
… bit 88 -> 2
8
)
89
Position Identifier P
9
90 to 97
Eight most significant bits of time of day in straight binary seconds
(bit 90 -> 2
9
… bit 97 -> 2
16
)
99
Position identifier P
0
Note
: Bits not listed are index markers, and are sent as binary zeroes.
Table B-3.
IRIG-B Bit Assignments (Continued)
Bit position
Information transmitted