6-5
Communications Processor CP 541
EWA 4NEB 812 6188-02
6.2.1
Structure of the Diagnostics Block
The following is a summary of the structure of the diagnostics block (DB2).
This is where the CP 541 stores information on all detected error states.
Detailed information on DB2 can be found in the following sections.
The diagnostics block contains the ranges given in Table 6-2.
Table 6-2
Assignments of the Data Words in DB2
DW
Range
See Section
DW0
Status word
Below
DW1 ... DW11
DB1 error
6.2.2
DW12
SINEC L2 bus error
6.2.3
DW13 ... DW17
SINEC L1 message error
6.2.4
DW18 ... DW26
Reserved
–
DW27 ... DW30
Internal error
6.2.5
DW0 specifies the block in DB2 of the CP 541 in which an error has been
entered.
Table 6-3 shows the significance of the individual bits in DW0. The positions
not mentioned are not assigned.
Table 6-3
Significance of DW0 in DB2
Bit
Significance
Stored in
0
DB1 error
DW1 ... DW11
1
SINEC L2 bus error
DW12
2
SINEC L1 message error
DW13 ... DW17
4
Internal error
DW27 ... DW30
Introduction
Structure
Significance of
DW0
Diagnostics and Error Handling