Detailed Description
2.12 Block descriptions
PLC Basic Program Solution Line (P3 sl)
2-194 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2.12.22 FC 19: MCP_IFM transmission of MCP signals to interface
Description of functions
FC MCP_IFM (M variants) is used to transfer the following from the machine control panel
(MCP) to the corresponding signals of the NCK/PLC interface:
• Mode Groups
• Axis selections
• WCS/MCS switchover commands
• Traversing keys
• Overrides
• Keylock switch
In the basic program (FC 2) handwheel selections, modes and other operating signals are
transferred from the operator panel front (HMI) to the NCK/PLC interface so that the modes
support selection from the MCP or HMI.
Transfer of HMI signals to the interface can be deactivated by setting the value of the
parameter "MMCToIF" to "FALSE" in FB 1 (DB 7).
The following specifications apply to the feed override, axis travel keys and INC keys
depending on the active mode or on the coordinate system selected:
• Feed override
:
– The feed override is transferred to the interface of the selected channel and to the
interface of the axes.
– The feed override signals are transferred to the NC channel in addition to the "Rapid
traverse override" (DBB 5) interface byte if the "Feed override for rapid traverse effective"
HMI signal is set (exception: switch setting "Zero"). "Rapid traverse override effective" is
also set with this HMI signal.
• Machine functions for INC and axis travel keys:
– When the MCS is selected, the signals are transferred to the interface of the selected
machine axis.
– When the WCS is selected, the signals are transferred to the geo-axis interface of the
parameterized channel.
– When the system is switched between MCS and WCS, the active axes are generally
deselected.
The handwheel selection signals from the HMI are decoded and activated in the associated
(machine) axis interface or the geo-axis interface of the handwheel selected (only if the
"HWheelMMC parameter := TRUE" in FB 1).
The LEDs on the machine control panel operate on the basis of the checkback signals from
the selections made.
Feedrate and spindle Start/Stop are not transferred to the interface, but output modally as a
"FeedHold" or "SpindleHold" signal. The user can link these signals to other signals leading
to a feed or spindle stop (this can be implemented, e.g., using the appropriate input signals
in FC 10: AL_MSG). The associated LEDs are activated at the same time.
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