Efficient Networks Siemens Sinamics S120 - Manual (Page 380)

Communication PROFIBUS DP/PROFINET IO
10.1 Communications according to PROFIdrive
Drive Functions
380
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
Table 10-19 Description of the individual signals in Gn_STW
Bit Name Signal status, description
Valid for find reference marker and measurement on-the-fly.
Bit Meaning
0 Function 1 Reference marker 1
Probe 1 rising edge
1 Function 2 Reference marker 2
Probe 1 falling edge
2 Function 3 Reference marker 3
Probe 2 rising edge
3 Function 4 Reference marker 4
Probe 2 falling edge
0
1
2
3 Status:
Function 1 - 4
active
Note:
•
Bit x = 1 function active
Bit x = 0 function inactive
Valid for find reference marker and measurement on-the-fly.
Bit Meaning
4 Value 1 Reference marker 1
Probe 1 rising edge
5 Value 2 Probe 1 falling edge
6 Value 3 Probe 2 rising edge
7 Value 4 Probe 2 falling edge
4
5
6
7 Status:
Value 1 - 4
available
Note:
•
Bit x = 1 value available
Bit x = 0 value not available
• Only one value can be fetched at a time.
Reason: There is only one common status word Gn_XIST2 to read the values.
• The probe must be configured to a "high-speed input" DI/DO on the Control
Unit.
1 Probe deflected (high signal) 8
Find
reference
mark or flying
measurement
Probe 1
deflected
0 Probe not deflected (low signal)
1 Probe deflected (high signal) 9 Probe 2 deflected
0 Probe not deflected (low signal)
10 Reserved -
1 Encoder fault acknowledge active
Note:
See under CTW.15 (acknowledge encoder error)
11 Encoder fault acknowledge
active
0 No acknowledgement active
12 Reserved -
1 Acknowledgement for Gn_STW.13 (request cyclic absolute value)
Note:
Cyclic transmission of the absolute value can be interrupted by a
function with higher priority.
•
See Fig. 1-9
• See Gn_XACT2
13 Transmit cyclic absolute value
0 No acknowledgement
14 Parking encoder 1 Parking encoder active (i.e. parking encoder switched off)