6-4
Communications Processor CP 541
EWA 4NEB 812 6188-02
6.2
Diagnostics Block
The CP 541 stores in the diagnostics block (DB2) all data on events occur-
ring during the start and in operation.
You can read out the diagnostics block in the STOP mode with a PG. You
connect the PG to the PG/PLC connector.
You cannot access the diagnostics block in the RUN mode. In the RUN
mode, the CP 541 carries out the exchange of data between the connected
programmable controller and SINEC L2. A PG access via the programmable
controller is not possible.
DB2 can only be read out.
DB2 is reset by the CP 541 in the initialization phase and upon each change
of status from STOP to RUN.
When you switch the CP 541 from STOP to RUN, all information in DB2 is
cleared.
The diagnostics block has the default 0.
Section
Contents
Page
6.2.1
Structure of the Diagnostics Block
6.2.2
DB1 Errors
6.2.3
SINEC L2 Bus Errors
6.2.4
SINEC L1 Message Errors
6.2.5
Internal Errors
Introduction
Reading out DB2
Resetting DB2
Defaults
Summary of this
Section
Diagnostics and Error Handling