Manual

A. Technical appendix
A−27
Festo P.BE−SFC−DC−PB−S7−EN en 0604NH
A.5 Diagnosis via PROFIBUS−DP
The SFC−DC supports the following diagnostic possibilities via
PROFIBUS−DP:
 FHPP status bytes
(block SFC_DC_Control, see chapter 3.1.3):
 Warning
 Fault
 Contouring_error
 Standstill_Control
DP diagnosis (see section A.5.1):
PROFIBUS service GetDiag" with device−related
diagnosis (GbD) when activated.
The alarm model as per DPV1 is not supported.
A.5.1 Structure of the DP diagnosis
Structure of the
DP diagnosis
The DP diagnosis of the SFC−DC reacts as per IEC 61158−6
type 3. 16 bytes are reserved in the SFC−DC for DP diag
nosis, see Tab.A/16.
Bytes 0 ... 5 are always made available.
Bytes 6 ... 15 are only made available if there is a fault.
Byte
Octet Diagnostic address Description
0 1 Station status 1 Gives an overview of the communication status and
the general status of the SFC DC
1 2 Station status 2
the general status of the SFC−DC.
2 3 Station status 3
3 4 Master PROFIBUS address PROFIBUS address of the DP master via which the
SFC−DC was parametrized and which has both read
and write access.