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The other diagnostics data (types) can be in any sequence. This is the reason that the
following diagnostics data include a header:
● Identifier-related diagnostics
● Status messages/module status
● Channel-related diagnostics
The diagnostic data type can be uniquely identified based on the header.
Note
The master must operate in the DPV1 mode.
Standard diagnostics
For communication via PROFIBUS, standard diagnostics is structured as follows.
Bit
Octet
Name
1
Station
status 1
2
Station
status 2
3
Station
status 3
4
5
6
In this context, the following values are decisive for diagnostics:
● Ext_Diag
– Group signal for diagnostics in the slave
– = 1, if at least 1 alarm is active
● Ext_Diag_Overflow
Display, diagnostics overflow in the slave (for more than 240 bytes)
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
7
6
Master_
Prm_Fault
Lock
= 0
0
0
Ext_
0
Diag_
Overflow
6.7 Communication according to PROFIdrive
5
4
0
Not_
Ext_Diag
Supported
Sync_
Freeze_
WD_On
Mode
Mode
0
0
Master_Add
Ident_Number (HighByte) of the slave
Ident_Number (LowByte) of the slave
3
2
1
Cfg_Fault
Station_
Not_
Ready
1
Stat_Diag
= 0
0
0
0
Operation
0
Station_
Non_
Exist
= 0
Prm_Req
0
345
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