Detailed description
2.4 Starting up the PLC program
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
25
NC tags
The latest NC VAR selector can be used for each NCU software version (even earlier
versions). The variables can also be selected from the latest list for earlier NC software
versions. The data content in DB 120 (default DB for variables) does not depend on the
software version, i.e., selected variables in an older software version must not be reselected
when the software is upgraded.
2.4.8
I/O modules (FM, CP modules)
Special packages for STEP7 are generally required for more complex I/O modules. Some of
these special packages include support blocks (FC, FB) stored in a STEP7 library. The
blocks contain functions for operating the relevant module which are parameterized and
called by the user program. In many cases, the FC numbers for the CP and FM module
handling blocks are also included in the number range of the basic program for the 840D.
What can one do in these conflicts?
The block number of the basic program must remain unchanged. The block numbers of
handling blocks can be assigned new, free numbers using STEP7. These new blocks (with
new FC numbers) are then called in the user program with the parameter assignments
required by the function.
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 ...