up: embedded systems - bacnet - specific messages  
bacnet message formats
bacnet date and time message format
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0000  00 26 ca 1c 44 40 00 25  64 3b 7e fd 08 00 45 00   .&..D@.% d;~...E.
0010  00 33 75 37 00 00 80 11  00 00 ac 13 00 19 ac 13   .3u7.... ........
0020  20 14 ba c0 ba c0 00 1f  2a ab 81 0a 00 17 01 20    ....... *...... 
0030  00 05 01 0a ff 10 06 a4  6e 08 13 04 b4 09 1a 14   ........ n.......
0040  0f                                                 .                


Date: a4 6e 08 13 04

byte 0 = flags byte 1 = 110 year? byte 2 = month byte 3 = day of month byte 4 = day of week (sunday = 0?)

Time: b4 09 1a 14 0f

byte 0 = flags byte 1 = hours byte 2 = minutes byte 3 = seconds byte 4 = seconds fraction

flags = b4 bits 7-4 = b = application tag number: time (11) bit 3 = 0 = tag class: application tag bits 2-0 = 4 = length value type: 4

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filename:embedded systems - bacnet - message formats - date and time
filename:embedded%20systems%20%2D%20bacnet%20%2D%20message%20formats%20%2D%20date%20and%20time
last edit:August 21 2010 12:05:08 (5366 days ago)
ct = 1746065236.000000 = April 30 2025 22:07:16
ft = 1282406708.000000 = August 21 2010 12:05:08
dt = 463658528.000000