hopf 7001RC, Техническое руководство

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PPENDIX
Multi-Source Function System 7001RC - V02.01 27 / 31
hopf
Elektronik GmbH
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3 Appendix
3.1 Data String Master/Slave
This Master/Slave-String can be used to synchronise slave systems with the time data of the
master system up to a high accuracy.
3.1.1 Local Time as Time Base in Master/Slave-String (Standard)
By default the system 7001RC will be synchronised by the Master/Slave-String with the local
time information. Settings see
Chapter 2.3.5 Configuration of the Master/Slave-String
Time Base .
By the local time and the system internal values for difference time UTC - local time such as
the status information for summer- and winter time the system UTC time will be calculated.
3.1.2 UTC as Time Base in Master/Slave-String
If the UTC time should be sent by the Master/Slave-String refer to Chapter 2.3.5
Configuration of the Master/Slave-String Time Base .
By the UTC time and the system internal values for difference time UTC - local time such as
the status information for summer- and winter time the system local time will be calculated.
3.1.3 Structure of the Master/Slave-String
The Master/Slave-Strings transmits
•
the complete time information (hour, minute, second),
•
the date (day, month, year [2 digits]),
•
the difference time local time to UTC (hour, minute),
•
the day of the week
•
and status information (announcement of a ST/WT change over, announcement of a
leap second and the reception status of the Master/Slave-String source).
The difference time is transmitted in hours and minutes following the year. The transmission
is done in BCD. The difference time may be up to ± 11.59 h.
The sign is shown as the highest bit in the tens hours.
logic 1 = local time before UTC
logic 0 = local time after UTC
Example:
data string
tens difference
time nibble
difference time
(STX)83123456030196 0 300(LF)(CR)(ETX) 0000 - 03:00h
(STX)83123456030196 1 100(LF)(CR)(ETX)
0001
- 11:00h
(STX)83123456030196 8 230(LF)(CR)(ETX) 1000 + 02:30h
(STX)83123456030196 9 100(LF)(CR)(ETX) 1001 + 11:00h