Siemens Sinamics S110 Function Manual page 571

CU_STW1 (control word for Control Unit, CU)
See function diagram [2495].
Table 9- 27 Description of CU_STW1 (control word for Control Unit)
Bit Meaning
0 Synchronization flag
1 RTC PING
2...6 Reserved
7 Acknowledging faults
8...9 Reserved
10 Control taken over
11 Reserved
12 Controller sign-of-life
bit 0
13 Controller sign-of-life
bit 1
14 Controller sign-of-life
bit 2
15 Controller sign-of-life
bit 3
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
– This signal is used to synchronize the joint system time between the
controller and drive unit.
– This signal is used to set the UTC time using the PING event.
– –
0/1 Acknowledging faults
– –
0 External controller has no control via the CU
Once the prevailing faults on all DOs have been acknowledged, the
fault is also acknowledged implicitly on DO1 (CU).
1 External controller has control via the CU
The prevailing faults have to be acknowledged on all DOs and also
explicitly on DO1 (CU).
– –
– Controller sign-of-life
–
–
–
9.2 Communication according to PROFIdrive
Remarks
Communication
Parameter
BI: p0681[0]
BI: p3104
–
BI: p2103
–
p3116
–
CI: p2045
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