Siemens SINAMICS S120 - Page 100

Communication via PROFIBUS
Cyclic communication
4-100
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Table 4-5 Description of A_CTW1 (control word for A_INF), continued
Bit BICOCommentsMeaning
8
9
Reserved - - -
Controlled by PLC
1
Controlled by PLC
This signal must be set so that the process data
transferred from the PROFIBUS master to the
slave is accepted and activated.
BI: p0854
10
Controlled by PLC
0
Not controlled by PLC
The process data transferred from the
PROFIBUS master are discarded by the slave,
i.e. they are assumed to be zero.
BI: p0854
Note:
This bit should not be set to “1” until the PROFIBUS slave has returned an appropriate status via
STW1.9 = “1”.
11
12
13
14
15
Reserved - - -