Central Control And Status Words - Siemens Sinamics S120 Function Manual

10.1.2.7

Central control and status words

Description
The central process data exists for different telegrams. For example, telegram 391 is used
for transferring measuring times and digital inputs/outputs.
The following central process data are available:
Receive signals:
● CU_STW1 Control Unit control word
● A_DIGITAL digital outputs
● A_DIGITAL_1 digital outputs
● MT_STW probe control word
Transmit signals:
● CU_ZSW1 Control Unit status word
● E_DIGITAL digital inputs
● E_DIGITAL_1 digital inputs
● MT_ZSW Probe status word
● MT_DIAG probe diagnostic word
● MTn_ZS_F probe n measuring time, falling edge (n = 1-16)
● MTn_ZS_S probe n measuring time, rising edge (n = 1-16)
CU_STW1 (control word for Control Unit, CU)
See function diagram [2495].
Table 10- 41 Description of CU_STW1 (control word for Control Unit)
Bit Meaning
0 Synchronization flag
1 RTC PING
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Bit Signal Description
30 =0 Interface information still to be received
=1 No further interface information will be received
31 =0 Data in the substructure are invalid
=1 Data in the substructure are valid
– 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.
10.1 Communication according to PROFIdrive
Remarks
Communication
Parameter
BI: p0681[0]
BI: p3104
563