User manual

8-15
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
The first part of the station diagnostic data of the DP/ASi link as a DP slave
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
Byte
1
Meaning Reason/Reaction Remedy
12.0 Group error message for
module
An error is present. Evaluate the other error messages.
12.1 Internal DP/ASi link fault;
group error message
Either there are no parameteriza-
tion data or a serious software er-
ror has occurred on the DP/
ASi link.
Check whether the parameteriza-
tion and configuration messages
are present in your DP master.
12.2 ASi error; external DP/
ASi link error
Either there is a configuration error
of the ASi or an ASi slave has
failed.
Compare the data of your configu-
ration with the actual set-up.
12.4 ASi power supply There is no ASi power supply. Check the ASi power supply.
Check the connections of ASi.
12.7 ID code or I/O code of an
ASi slave erroneous
(occurs during start-up only)
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.
Check whether a different slave
type (different I/O or ID code)
from that specified in the parame-
terization message is being used.
13.0 to 4 CPU class –
15.2 EEPROM of DP/ASi link de-
fective
An internal self-test has deter-
mined that the EEPROM is defec-
tive.
Consult your point of contact at
Siemens.
1
Unnamed bits are without significance
Diagnostic data
Part 1
Diagnostics and Error Handling