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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]
6.1.2 Configuration of the Data String (Mode Byte)
The received time information can be transmitted via the interfaces in several data strings
with indication of the internal synchronization status of the clock.
By this means it is possible for the user to synchronize connected computer equipment with
a highly precise time. The respectively desired transmission point of time, string construction
and the control characters used can be selected via the data in
Mode Bytes 1 and 2
.
The
SET
menu for the
Mode Bytes
can be reached via the following key combination:
Key
ENT
Key
1
for
SET
menu
Pressing Key
N
until the following menu appears
Selection frame:
S E T C O M 0
M O D E B Y T E _ 1 Y / N
or
Selection frame:
S E T C O M 0
M O D E B Y T E _ 2 Y / N
and in addition a Mode Byte 3 is available for special strings
Selection frame:
S E T C O M 0
M O D E B Y T E _ 3 Y / N
The SET menu for Mode Byte 3 is only displayed if a string which requires
Mode Byte 3 for an expanded configuration was selected via Mode Byte 2.
Key
Y
The input mask for the
Mode Byte
appears:
Input frame:
M o d B _ 1 7 6 5 4 3 2 1 0
C O M 0 > _
The cursor now lies under bit position 7. Each bit should be understood to be a switch with
which settings can be made in the operating type (mode) of the serial interface. Depending
on the desired serial interface operating type the following entries must be made under the
bit positions:
0 - for switch off
or
1 - for switch on
The meanings of the individual bit positions (switches) are described in the following chap-
ters.
