4 Time Strings
4.5 Format of the ATIS standard Time String
The ATIS standard Time String is a sequence of 23 ASCII characters terminated by a CR (Carriage Return)
character. The format is:
<GID><ABS><TSQ><CC><CS><ST>
yymmddhhmmsswcc
<GID><CR>
The letters printed in italics are replaced by ASCII numbers whereas the other characters are part of the
time string. The groups of characters as defined below:
<GID>
Address of the receiver
code 7Fh
<ABS>
Originator of message
ASCII ’0’
code 30h
<TSQ>
Telegram number
ASCII ’0’
code 30h
<CC>
Command code
ASCII ’S’ for SET
code 53h
<CS>
Command code
ASCII ’A’ for ALL
code 41h
<ST>
Time status
ASCII ’C’ for valid time
code 43h
yymmdd
the current date:
yy year of the century (00..99)
mm month
(01..12)
dd day of month
(01..31)
hh:mm:ss
the current time:
hh hours
(00..23)
mm minutes
(00..59)
ss seconds
(00..59, or 60 while leap second)
w
the day of the week
(1..7, 1 = 31h = Monday)
cc
checksum in hex, built from all characters
including GID, ABS, TSQ, CC, ST, ...
<CR>
Carriage Return, ASCII code 0Dh
(The standard interface configuration for this string type is 2400 baud, 7E1)
DCF600HS
Date: 24th July 2018
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