Signals From Channel (Db21 - Siemens SINUMERIK 840D sl Function Manual

Z2: NC/PLC interface signals
19.10 Punching and nibbling
DB21, ...
DBX3.4
Edge evaluation:
Signal state 1 or The NC reacts to this signal by initiating an immediate movement stop. An alarm is output if any
edge change 0 → 1 other movement or action needs to be interrupted as a result of this signal.
In physical terms, the signal is identical to the signal "Stroke active" for the CNC, i.e. the system is
wired in such a way that the two signals are taken to the same NC input via an AND gate.
1 signal: Stroke inoperative (corresponds to the signal "stroke enable").
Signal state 0 or 0 signal: Stroke operative (corresponds to the signal "stroke enable").
edge change 1 → 0
DB21, ...
DBX3.5
Edge evaluation:
Signal state 1 or The signal "manual stroke initiation" allows the operator to initiate a punching process, even when
edge change 0 → 1 the parts program is not being processed. Thus the initiation of the punching process is controlled
from the PLC.
Successful stroke initiation is indicated to the PLC by the NCK-PLC interface signal:
DB21, ... DBX38.1 (Manual stroke initiation acknowledgement).
1 signal: Manual stroke initiation is active.
Signal state 0 or 0 signal: Manual stroke initiation is not active.
edge change 1 → 0
19.10.3

Signals from channel (DB21, ...)

DB21, ...
DBX38.0
Edge evaluation:
Signal state 1 or This signal displays whether the stroke initiation is active.
edge change 0 → 1
1 signal: Stroke initiation is active.
Signal state 0 or 0 signal: Stroke initiation is not active.
edge change 1 → 0
1070
Stroke inoperative
Signal(s) updated:
Manual stroke initiation
Signal(s) updated:
Stroke initiation active
Signal(s) updated:
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions