Siemens SINUMERIK 840D sl Function Manual page 463

Display
The current mode of the mode group is displayed via the NC/PLC interface:
DB11 DBX6.0, 0.1, 0.2 (active mode)
Mode-group signal (NCK → PLC)
DB11 DBX6.2
DB11 DBX6.1
DB11 DBX6.0
Machine functions
Machine functions can be selected within a mode that also apply within the mode group:
● Machine functions within the JOG mode
– REF (reference point approach)
– REPOS (repositioning)
– JOG retract (retraction motion in the tool direction)
● Machine functions within the MDI mode
– REF (reference point approach)
– REPOS (repositioning)
– TEACHIN (teach-in of axis positions)
NC/PLC interface signals
● DB11 DBX5.0, 0.1, 0.2 (machine function strobe): Requirement
● DB11 DBX1.0, 0.1, 0.2 (machine function): Activation
● DB11 DBX7.0-2 (active machine function): Feedback signal
Channel states
● Channel reset
The machine is in its initial state. This is defined by the machine manufacturer's PLC
program, e.g. after POWER ON or at the end of the program.
● Channel active
A program has been started, and the program is being executed or a reference point
approach is in progress.
● Channel interrupted
The running program or reference point approach has been interrupted.
Functions within modes
Modes are supplemented through user-specific functions. The individual functions are
technology and machine-independent and can be started and/or executed from the three
channel states "Channel reset", "Channel active" or "Channel interrupted".
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
9.3 Mode types and mode type change
Active operating mode
JOG
MDI
AUTOMATIC
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