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System 6844(RC) - V03.00
hopf
Elektronik GmbH
Nottebohmstr. 41
• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
6.3.16 SPT String
Below the data string SPT-string is described.
The SPT-string is a data string which is transmitted every minute. The time of the transmis-
sion is selected so that the middle of the first stop bit of the synchronisation signal falls ex-
actly on the 2
nd
second of every minute.
6.3.16.1 Specified Settings
Automatic:
no
Required:
baud rate = 1200 baud
word length = 8 bit
stop bit = 2
parity = even
Blocked:
transmission point = every minute
second forerun off
control character at second change off
transmission delay off
6.3.16.2 Structure
Only binary values are transmitted
Character No.
Meaning
Hex-Value
1
Header
$FF
2
Header
$01
3
Status
$08-1F
4
Begin
$02
5
Day of the week (1=Monday ... 7=Sunday)
$01-07
6
Day
$01-31
7
Month
$01-12
8
Year
$00-99
9
Hour
$00-23
10
Minute
$00-59
11
Second
$02
12
End
$03
13
Synchronisation character
$16