Structure Of Diagnosis, Bytes 12 To - Siemens SIMATIC Distributed I/O System DP/ASi Link Manual

Diagnostic data The first part of the station diagnostic data of the DP/ASi link as a DP slave
Part 1 is structured as shown in Table 8-11. A message is indicated by a "1".
Table 8-11

Structure of diagnosis, bytes 12 to 15

1
Byte Meaning
12.0 Group error message for
module
12.1 Internal DP/ASi link fault;
group error message
12.2 ASi error; external DP/
ASi link error
12.4 ASi power supply
12.7 ID code or I/O code of an
ASi slave erroneous
(occurs during start-up only)
13.0 to 4 CPU class
15.2 EEPROM of DP/ASi link de-
fective
1
Unnamed bits are without significance
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Reason/Reaction
An error is present.
Either there are no parameteriza-
tion data or a serious software er-
ror has occurred on the DP/
ASi link.
Either there is a configuration error
of the ASi or an ASi slave has
failed.
There is no ASi power supply.
The ID code or the I/O code of an
existing ASi slave does not corre-
spond to the data in the parameter-
ization message.
An internal self-test has deter-
mined that the EEPROM is defec-
tive.
Diagnostics and Error Handling
Remedy
Evaluate the other error messages.
Check whether the parameteriza-
tion and configuration messages
are present in your DP master.
Compare the data of your configu-
ration with the actual set-up.
Check the ASi power supply.
Check the connections of ASi.
Check whether a different slave
type (different I/O or ID code)
from that specified in the parame-
terization message is being used.
–
Consult your point of contact at
Siemens.
8-15