Detailed description
2.7 Structure and functions of the basic program
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
55
Concurrent axes
The distinguishing features of concurrent axes are as follows:
•
They must be defined as such via the NC machine data,
•
They can be traversed either from the PLC or from the NC by means of the JOG keys,
•
Starting from the PLC is possible in the NC operating modes MDA and AUTOMATIK via
FC,
•
The start is independent of NC block boundaries.
Function calls are available for positioning, indexing axes and spindles (FC 18).
,QSXW
SDUDPHWHUV
6WDUWLQJ
SDUDPHWHUV
)&
6WDUW
6WRS
)XQFW
,Q3RV
(UURU
6WDWH
6SLQ&WUO
3RV
$[LV1R
0RGH
)5DWH
Figure 2-13 FC 18 input/output parameters
ASUBs
Asynchronous subprograms (ASUBs) can be used to activate any function in the NCK.
Before an asynchronous subprogram can be started from the PLC, it must be ensured that it
is available and prepared by the NC program or by FB 4 PI services (ASUB).
Once prepared in this way, it can be started at any time from the PLC. The NC program
running in one of the parameterized channels of FC 9 is interrupted by the asynchronous
subprogram. An ASUB is started by calling FC 9 from the user program by setting the start
parameter to 1.
)&
6WDUW
&KDQ1R
,QW1R
$FWLY
'RQH
(UURU
6WDUW(UU
5HI
$683
Note
If an asynchronous subprogram has not been prepared by an NC program or by FB 4
(ASUB) (e.g. if no interrupt no. has been assigned), a start error is output (StartErr = TRUE).
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...