Efficient Networks Siemens Sinamics S120 - Manual (Page 385)

Communication PROFIBUS DP/PROFINET IO
10.1 Communications according to PROFIdrive
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
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Receive signals:
● CU_STW Control Unit control word
● A_DIGITAL digital outputs
● MT_STW probe control word
Transmit signals:
● CU_ZSW Control Unit status word
● E_DIGITAL digital inputs
● MT_CTW Probe status word
● MTn_ZS_F Probe n measuring time, falling edge (n = 1, 2)
● MTn_ZS_S Probe n measuring time, rising edge (n = 1, 2)
CU_STW (control word for Control Unit, CU)
See function diagram [2448]
Table 10-21 Description of CU_STW (control word for Control Unit, CU)
Bit Meaning Remarks BICO
0 Synchronization flag – This signal is used to synchronize the joint system time between the
controller and drive unit.
BI: p0681[0]
1 RTC PING – This signal is used to set the UTC time using the PING event. BI: p3104
2...6 Reserved – – –
7 Acknowledging faults 0/1 Acknowledging faults BI: p2103
8...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
–
Controller sign-of-life CI: p2045
A_DIGITAL (digital outputs)
This process data can be used to control the Control Unit outputs.
See function diagram [2449]
Table 10-22 Description of A_DIGITAL (digital outputs)
Bit Meaning Remarks BICO
0 Digital input/output 8
(DI/DO 8)
– DI/DO 8 on the Control Unit must be parameterized as an output
(p0728.8 = 1).
BI: p0738