Detailed description
2.6 Interface structure
Basic logic functions: PLC basic program solution line (P3 sl)
38
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.6.2
Interface PLC/HMI
General
The following groups of functions are required for the PLC/HMI interface:
•
Control signals
•
Machine operation
•
PLC messages
•
PLC status display
Control signals
Some control signals are signal inputs, for example, via the machine control panel, which
have to be taken into account by the HMI. This group of signals includes, for example,
display actual values in MCS or WCS, key disable, etc. These are exchanged with the HMI
via a separate interface data block (DB19).
Machine operation
All operator inputs, which lead to response actions on the machine, are monitored by the
PLC. Operator actions are usually performed on the machine control panel (MCP). However,
it is also possible to perform some operator actions on the HMI e.g. mode selection.
The PLC operating system enters the operating signals sent by the HMI directly into the
interface data blocks. As standard, the basic program routes these operating signals in such
a way that, provided equivalent operator actions are available, these can be performed either
on the HMI or on the MCP. If required, the user can switch off the operation via HMI
through a parameter "MMCToIF" of FB1.
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 ...