Siemens SINUMERIK 840D sl Function Manual page 1616

Z1: NC/PLC interface signals
19.6 Mode group, channel, program operation, reset response (K1)
DB21, ...
DBX33.4 Block search active
Edge evaluation: No
Signal state 1 The block search function is active.
It was selected from the operator interface and started using the interface signal:
DB21, ... DBX7.1 (NC Start)
Signal state 0 Search target found.
Application exam‐ The block search function makes it possible to jump to a certain block within a part program and to
ple(s) start processing the part program from this block.
Additional references See Section "K1: Mode group, channel, program operation, reset response (Page 455)"
DB21, ...
DBX33.5 M02/M30 active
Edge evaluation: No
Signal state 1
● NC block with M02 or M30 (or M17 if a subprogram was started) is completely processed; if
● The program was interrupted as a result of a reset, and the program status changes to "Aborted".
● When MDI mode or machine functions REF or PRESET are selected
● According to DB10 DBX56.2 (acknowledge emergency stop)
Signal state 0 ● No program end or program abort
● Status after activation of control
● Start of an NC Program
Screen
1616
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
traversing motions are also programmed in this block, the signal is only output when the target
position is reached.
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions