Retrace Support (Te7); Signals To Channel; Signals From Channel - Siemens SINUMERIK 840D sl Function Manual
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- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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Z3: NC/PLC interface signals
21.11 Retrace Support (TE7)
21.11
Retrace Support (TE7)
21.11.1
Signals to channel
DB21, ...
DBX0.1
Reverse/Forward
Edge evaluation: Yes
Signal state 1 or edge
Activate reverse travel.
change 0 → 1
The RESU main program CC_RESU.MPF is generated from the traversing blocks recorded in the
RESU-internal block buffer in order to initiate travel back along the contour on the next NC START.
Edge change 1 → 0
Activate forward travel.
The RESU main program CC_RESU.MPF is generated from the traversing blocks recorded in the
RESU-internal block buffer in order to initiate travel forwards along the contour on the next NC
START.
Signal state 0
Not relevant.
Signal irrelevant for ... RESU technological function not loaded or not activated.
DB21, ...
DBX0.2
Start retrace support
Edge evaluation: No
Signal state 1
Start retrace support:
The original machining program is reselected and a block search is carried out to locate the
program continuation point.
Signal state 0
Not relevant.
Signal irrelevant for ... The NC is not in Retrace mode or RESU is not active.
21.11.2
Signals from channel
DB21, ...
DBX32.1
Retrace mode active
Edge evaluation: No
Signal state 1
The "Retrace mode active" signal is active as long as the control is in Retrace mode. This is the
case from initial activation of the "reverse/forward" signal until activation of the "start retrace
support" signal.
Signal state 0
The machining program is executed.
Signal irrelevant for ... RESU technological function not active.
750
Signal(s) updated:
Signal(s) updated:
Signal(s) updated:
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions
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