Brief description
Basic logic functions: PLC Basic program powerline (P3 pl)
8
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Event-driven signal exchange PLC → NCK
An "eventdriven signal exchange PLC → NCK" takes place whenever the PLC passes a
request to the NCK (e.g., traversal of an auxiliary axis). In this case, the data transfer is also
controlled by acknowledgment. When performed from the user program, this type of signal
exchange is triggered using a function block (FB) or function call (FC).
The associated FBs (Function Blocks) and FCs (Function Calls) are supplied together with
the basic program.
Messages
User messages are acquired and conditioned by the basic program. A defined bit field is
used to transfer the message signals to the basic program. The signals are evaluated there
and entered in the PLC diagnostics buffer on the occurrence of the message events. If a
control unit is present, the messages are displayed on the operator interface.
Note
The function of the machine is largely determined by the PLC program. Every PLC program
in the working memory can be edited with the programming device.
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 ...
