COM0
/
COM1
S
ERIAL
I
NTERFACES
System 6844(RC) - V03.00
91 / 157
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]
6.3.2
hopf
Standard String (6021)
Below the
hopf
Standard String is described.
6.3.2.1 Specified Settings
Automatic:
no
Required:
no
Blocked:
no
6.3.2.2 Structure
Character No.
Meaning
Hex-Value
1
STX (start of text)
$02
2
status (internal clock status)
$30-39, $41-46
3
day of the week (1=Monday ... 7=Sunday)
for UTC time bit 3 is set to 1 in the day of the
week
$31-37
4
tens hour
$30-32
5
unit hour
$30-39
6
tens minute
$30-35
7
unit minute
$30-39
8
tens second
$30-36
9
unit second
$30-39
10
tens day
$30-33
11
unit day
$30-39
12
tens month
$30-31
13
unit month
$30-39
14
tens year
$30-39
15
unit year
$30-39
16
LF (line feed)
$0A
17
CR (carriage return)
$0D
18
ETX (end of text)
$03
6.3.2.3 Status
The second and the third ASCII-character contain the status and the day of the week.
The status is decoded binary.
b3 b2 b1 b0
Meaning
Status:
x
x
x
0
no announcement hour
x
x
x
1
announcement (DST changeover)
x
x
0
x
standard time
x
x
1
x
daylight saving time (DST)
0
0
x
x
time / date invalid
0
1
x
x
crystal operation
1
0
x
x
radio operation
1
1
x
x
radio operation (high accuracy)
