8 Time Strings
8.12 Format of the SYSPLEX-1 Time String
The SYSPLEX1 time string is a sequence of 16 ASCII characters starting with the SOH (Start of Header) ASCII
controll character and ending with the LF (line feed, ASCII Code 0Ah) character.
Please note:
To receive the Timestring on a selected terminal correctly you have to send a " C " (once, without quotation marks).
The format is:
<SOH>ddd:hh:mm:ssq<CR><LF>
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:
<SOH> Start of Header (ASCII control character)
sending with one bit accuracy at change of second
ddd day of year (001..366)
hh:mm:ss the current time:
hh hours (00..23)
mm minutes (00..59)
ss seconds (00..59, or 60 while leap second)
q Quality
indicator (space) Time Sync (GPS lock)
(?) no Time Sync (GPS fail)
<CR> Carriage-return (ASCII code 0Dh)
<LF> Line-Feed (ASCII code 0Ah)
SyncBox N2X Date: 17th September 2019 39
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