Siemens SINAMICS S120 Series - Standard Diagnostics

Communication according to PROFIdrive
3.5 Diagnostics channels
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
71
3.5.2.1 Standard diagnostics
For communication via PROFIBUS, standard diagnostics is structured as follows.
Bit
7
6
5
4
3
2
1
0
Octet
Name
1 Station
status 1
Master_
Lock
= 0
Prm_Fault 0 Not_
Supported
Ext_Diag
Cfg_Fault Station_
Not_
Ready
Station_
Non_
Exist
= 0
2 Station
status 2
0 0 Sync_
Mode
Freeze_
Mode
WD_On 1
Stat_Diag
= 0
Prm_Req
3 Station
status 3
Ext_
Diag_
Overflow
0 0 0 0 0 0 0
4
Master_Add
5
Ident_Number (HighByte) of the slave
6
Ident_Number (LowByte) of the slave
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)
3.5.2.2 Identifier-related diagnostics
The identifier-related diagnostics provides a bit (KB_n) for each slot 1 allocated when
configuring the device. If a diagnostics message is active at a slot, then it's KB_n = true.
Bit
7
6
5
4
3
2
1
0
Octet
Name
1 Header-
Byte
Station
status 1
0 1 Block length (2 ... 32) incl. this byte
2 Bit
structure
KB_7 KB_6 KB_5 KB_4 KB_3 KB_2 KB_1 KB_0
3 Bit
structure
... ... ... ... KB_11 KB_10 KB_9 KB_8
...
...
x Bit
structure
... ... KB_n+1 KB_n ... ... ... ...