Detailed description
2.7 Structure and functions of the basic program
Basic logic functions: PLC Basic program powerline (P3 pl)
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Function Manual, 11/2006, 6FC5397-0BP10-2BA0
MPI switchover, OPI address
An existing connection with an MCP (Machine Control Panel) or HHU (HandHeld Unit) can
be aborted. Another MCP or HHU component already connected to the bus (with another
MPI or OPI address) can then be activated. Proceed as follows to switch addresses:
1.
Stop communication with component to be decoupled via parameter MCP1Stop or
MCP2Stop or BHGStop = 1.
2.
After checkback in DB10 byte 104 (relevant bits 0, 1, 2 set to 0). Change in the bus
address or GD parameter set of this unit to that of the new component.
3.
In this PLC cycle, communication with the new component can now be activated again by
means of parameter MCP1Stop or MCP2Stop or BHGStop = 0.
4.
Communication with the new component is taking place when the checkback in DB10
byte 104 (relevant bits 0, 1, 2 is set to 1).
As described in Section Control signals, all parameters must be programmed according to
data type.
Switching off flashing MCP:
With MCP firmware V5.01.02 and higher, flashing can be suppressed in offline mode. No
communication takes place in offline mode (e.g., if the MCP connection fails). Via the status
bits 24 or 25 in the MCP1StatSend, MCP2StatSend a value can be specified in the output
data when the communication is active.
The acknowledgement that the value as been imported, is returned in the same bits in the
MCP1StatRec, MCP2StatRec. Following a successful checkback signal, the status bits in
send status must be reset.
Example about realization is present on the toolbox.
Temperature monitoring of the MCP:
With MCP firmware V5.01.02 and higher, an increased temperature is signaled back via bit
28 = 1 in MCP1StatRec, MCP2StatRec.
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 ...