Siemens SINUMERIK 828D Function Manual page 1676

Z1: NC/PLC interface signals
19.6 Mode group, channel, program operation, reset response (K1)
DB21, ...
DBX1.7 Activate program test
Edge evaluation: no
Signal state 1 or Activation of the program test is requested.
edge change During the program test, all motion commands of axes (not spindles) take place under "Axis
0 → 1 disable."
Notice!
Due to the axis disable, the assignment of a tool magazine is not changed for the program test. The
user/machine manufacturer must utilize a suitable PLC user program to ensure that the NCK-
internal tool management and the actual assignment of the tool magazine remain consistent. Refer
to the program example included in the PLC Toolbox.
Signal state 0 or Activation of the program test is not requested.
edge change
1 → 0
Corresponding to ... DB21, ... DBX25.7 (program test selected)
DB21, ...DBX33.7 (program test active)
DB21, ...
DBB2 Activate skip block
Edge evaluation: no
Signal state 1 or Skip blocks marked in the part program with an slash (/) are not processed. If there is a series of skip
edge change blocks, the signal is only active if it is present before the first skip block of the series is decoded.
0 → 1
Note
The signal should be available prior to the start of the part program.
Signal state 0 or Skip blocks marked in the part program with an slash (/) are processed.
edge change
1 → 0
Corresponding to ... DB21, ... DBX26.0 (Skip block selected)
DB21, ... DBX35.2 (Program status stopped)
DB21, ...
DBX6.1 Read-in disable
Edge evaluation: no
Signal state 1 or The main run reads in no more preprocessed part program blocks.
edge change
Note
0 → 1
The signal is only active in AUTOMATIC and MDA modes.
Signal state 0 or The main run reads in preprocessed part program blocks.
edge change
1 → 0
Corresponding to ... DB21, ... DBX35.0 (program status running)
DB21, ...
DBX6.4 Program level abort
Edge evaluation: yes
Signal state 1 or At each edge change 0 → 1 the current program level being processed (subroutine level, ASUB
edge change level, save routine) is immediately aborted. Processing of the part program continues at the next
0 → 1 higher program level from the exit point.
1676
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions