Siemens SINUMERIK 840D sl Function Manual page 2090

Detailed Description
2.9 Mode group, channel, program operation, reset response (K1)
DB21, ...
DBX32.5 M00/M01 active
Fig.
Corresponds to .... DB21, ... DBX0.5 (activate M01)
DB21, ... DBX24.5 (M01 selected)
DB21, ...
DBX32.6 Last action block active
Edge evaluation: no
Signal state 1 or The last action block is being executed.
edge change
This means, that all the action blocks on the side of NC have been processed and the actions on
0 → 1
the side of PLC (ASUP, FC) or the operator such as overstore, mode change according to
JOG/REPOS are possible. In this way the PLC for example can still perform a tool change before
the start of movement.
Signal state 0 or The last action block is not being executed. Action blocks contain the actions collected during
edge change "block search with computation" such as
1 → 0
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Additional /FB1/ Functions Manual Basic Functions; K1 Channel, Program Operation, Reset Response
References
94
Signal(s) updated: cyclic
outputting help function H, M00, M01, M..
Tool programming T, D, DL
Spindle programming S-Value, M3/M4/M5/M19, SPOS
Feed programming, F
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0