Siemens SINAMICS S120 Function Manual page 220

Control of the safety functions
5.3 Activation via PROFIsafe
Safety status word 1 (S_ZSW1)
S_ZSW1, input signals
see function diagram [2806].
Table 5- 6 Description of safety status word 1 (S_ZSW1)
Byte Bit
0 0
1
2
3
4
5
6
7
1 0
1
2
3
4
5
6
7
Signals not relevant for Basic Functions: It is not permissible that they are evaluated.
1)
218
Meaning
STO active
SS1 active
SS2 active
SOS active
SLS active
Reserved
SLP active
Internal Event
SLA active
Active SLS level bit 0
Active SLS level bit 1
SOS selected
SDI positive active
SDI negative active
Reserved
SSM (speed below limit value)
1 STO active
0 STO not active
1 SS1 active
0 SS1 not active
0 –
1)
0 –
1)
0 –
1)
– –
0 –
1)
1 Internal event
0 No internal event
0 –
1)
0 –
1)
0
0 –
1)
0 –
1)
0 –
1)
– –
0 –
1)
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Remarks
Safety Integrated