Siemens SIRIUS 3RK3 - Error Codes CTT2 Error Code

7.6.7 Error codes "CTT2 error code"
If a data set is transferred with an error or rejected by the MSS 3RK3, the negative
acknowledgment is accompanied by an "error code" explaining the reason for the negative
acknowledgment.
6WDQGDUG
HUURU
FRGH
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'DWDVHW
HUURU
FRGH
Figure 7-8 Error code
Standard error code (CTT2 transmission error)
CTT2 error Meaning
0 No error, pay attention to the data set error code
2 Impermissible length
3 Request not implemented
MSS 3RK3 data set error code
DS error Error message Possible causes Remedial measures
0000
H
No error, pay attention to the standard error code
80B0
H
Unknown data set
number
• DS no. not supported by de‐
vice
• None, since the device does not
recognize this data set no.
80B1
H
Incorrect data set length
when writing
• DS length ≠ speci󹪝ed DS
length
• Change DS length to match speci‐
󹪝ed length and send DS again
80B4
H
Incorrect data set length
when reading
• DS length ≠ speci󹪝ed DS
length
• Request DS with the correct
length
80B6
H
Device has rejected data
transfer
• Due to incorrect mode
• Data set is read-only
• Parameter change not per‐
missible in current device/
system operating mode
Check whether
• The correct mode is set on the de‐
vice for the data sent
• A data set that can only be read is
to be written
• A parameter has been changed
even though it may only be
changed in a particular operating
mode
Diagnostics / service
7.6 Diagnosis using AS-Interface (CTT2 protocol)
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 309