Time strings, Format of the meinberg standard time string – Meinberg TCG510 User Manual

Page 16

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16

Time Strings

Format of the Meinberg Standard Time String

The Meinberg Standard Time String is a sequence of 32 ASCII characters starting with
the STX (start-of-text) character and ending with the ETX (end-of-text) character. The
format is:

<STX>D:dd.mm.yy;T:w;U:hh.mm.ss;uvxy<ETX>

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:

<STX>

Start-Of-Text (ASCII code 02h)

dd.mm.yy the current date:

dd

day of month

(01..31)

mm month

(01..12)

yy

year of the century

(00..99)

w

the day of the week

(1..7, 1 = Monday)

hh.mm.ss

the current time:

hh

hours

(00..23)

mm minutes

(00..59)

ss

seconds

(00..59, or 60 while leap second)

uv

clock status characters:

u:

‘#’ clock has not synchronized after reset
‘ ‘ (space, 20h) clock has synchronized after reset

v:

different for DCF77 or GPS receivers:

‘*’ DCF77 clock currently runs on XTAL

GPS receiver has not checked its position

‘ ‘ (space, 20h) DCF77 clock is sync'd with transmitter

GPS receiver has determined its position

x

time zone indicator:

‘U’ UTC

Universal Time Coordinated, formerly GMT

‘ ‘

MEZ

European Standard Time, daylight saving disabled

‘S’

MESZ European Summertime, daylight saving enabled

y

anouncement of discontinuity of time, enabled during last hour
before discontinuity comes in effect:

‘!’

announcement of start or end of daylight saving time

‘A’ announcement of leap second insertion
‘ ‘

(space, 20h) nothing announced

<ETX>

End-Of-Text (ASCII code 03h)

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