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Defaults
Modifying DB1
Step
1
Connect your PG to the PG/PLC interface.
2
Switch the CP 541 to the STOP mode.
3
Read DB1 in the CP 541.
4
Make the desired changes.
5
Store DB1 in the CP 541 again.
6
Remove your PG and reconnect the connecting
cable.
7
Switch the CP 541 to the RUN mode.
Overall Reset
Storage of DB1
Communications Processor CP 541
EWA 4NEB 812 6188-02
All values are preset as defaults. If individual parameters are marked as re-
marks, the values stored internally will be used by the CP 541. The default
values are listed in Table C-9.
Table C-9
Default Values in DB1
Parameter
L1M
Value
0
*
For the DP connection, the 0 is also entered automatically in PRI.
Proceed as follows to modify DB1.
Action
You can only execute an overall reset of the CP 541 by means of a program-
mer.
After a STOP-RUN transition, DB1 is stored in the nonvolatile EEPROM of
the CP 541. Even if you switch off the CP 541, the modified DB1 will be
retained.
BSAP
POL
UPDL
52
10
10
Explanation
You only have access to DB1 via the
PG/PLC interface.
You can only modify DB1 in the
STOP mode.
–
For example, enter the station num-
ber in the default DB1
(see Chapter 4).
–
–
The CP 541 is now ready and DB1 is
stored in the EEPROM.
Parameters of DB1
PRI
DPWD
*
0
, 1..30
50
C-13
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