Siemens SINAMICS S120 Installation And Start-Up Manual page 101

A_CTW1 (control word for B_INF)
See function diagram [8720].
Table 4-6 Description of A_CTW1 (control word for B_INF)
Bit Meaning
0 ON/OFF1
OFF2
1
Note:
Control signal OFF2 is generated by ANDing BI: p0844 and BI: p0845.
2
3
4
Reserved
5
6
Acknowledge error
7 Note:
Acknowledgement takes place at a 0/1 edge via BI: p2103 or BI: p2104 or BI: p2105.
8
Reserved
9
Controlled by PLC Controlled by PLC
10
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 Reserved
14
15
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Comments
ON
0/1
Pulse enable possible
OFF1
0
Reduce DC link voltage via ramp (p3566), then
pulse inhibit/line contactor open
No OFF2
1
Enable possible
OFF2
0
Immediate pulse cancellation and power-on
inhibit
- -
0/1 Acknowledge error
- -
Controlled by PLC
This signal must be set so that the process data
1
transferred from the PROFIBUS master to the
slave is accepted and activated.
Not controlled by PLC
The process data transferred from the
0
PROFIBUS master are discarded by the slave,
i.e. they are assumed to be zero.
- -
Communication via PROFIBUS
Cyclic communication
BI: p0840
BI: p0844
-
BI: p2103
-
BI: p0854 BI: p0854
-
BICO
4-101