Siemens SINUMERIK 802D sl Function Manual page 25

NCK alarm is active (V2700 0003.0)
The control sends this signal to the PLC to indicate that at least one NCK alarm is active. An
enquiry can be made via the channel-specific interface (V3300 0004.7) as to whether a
processing stop has been triggered.
Ambient temperature alarm (V2700 0003.6)
The ambient temperature or fan monitoring function has responded.
NCK alarm channel-specific active (V3300 0004.6)
The control system sends this signal to the PLC to indicate that at least one NCK alarm is
active for the channel. To what extent this may influence whether the current program run
will be interrupted or aborted can be determined from IS "NCK alarm with processing stop is
active" (V3300 0004.7).
External language mode active (V3300 4001.0)
The control system sends this signal to the PLC to indicate that the active program language
used for the part program is not a SIEMENS language. A language changeover has been
made with G291.
NCK alarm with processing stop present (V3300 0004.7)
The control sends this signal to the PLC to indicate that at least one NCK alarm, which has
interrupted or aborted the current program run (processing stop), is active for the channel.
Follow-up active (V390x 0001.3)
Follow-up mode for this axis is active.
See Section: Signals from PLC to NCK, follow-up mode (V380x 0001.4)
Axis/spindle stationary (V390x 0001.4)
The current velocity of the axis or actual speed of the spindle is within the range which is
defined as standstill. This range is defined with MD36060 STANDSTILL_VELO_TOL
(maximum velocity/speed for signal "Axis/spindle stationary").
Position control active (V390x 0001.5)
The position control loop for the axis/spindle is closed; the position control function is active.
Speed control active (V390x 0001.6)
The speed control loop for the axis/spindle is closed; the speed control function is active.
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
Various Interface Signals (A2)
1.3 Signals from NCK to PLC
25