Response With Special Functions; Dry Run (Dry Run); Single Block - Siemens SINUMERIK 840D sl Function Manual

Control response to
Bit 6 = 1
Bit 7 = 1
* Note on axis replacement
This replacement of a "neutral axis" by an "NC program axis" does not take place until the PLC
has really relinquished control of the axis in accordance with use case "Relinquish control of
axis". Waiting for this axis interchange is displayed on the HMI operator panel front.
11.8

Response with special functions

11.8.1

Dry run (DRY RUN)

The dry run feedrate is also effective for positioning axes unless the programmed feedrate is
larger than the dry run feedrate.
Activation of the dry run feed entered in SD42100 $SA_DRY_RUN_FEED can be controlled
with SD42101 $SA_DRY_RUN_FEED_MODE. See
References:
Function Manual, Basic Functions; Feedrates (V1)
11.8.2

Single block

Positioning axis type 1
Single-block mode is effective with positioning axes of type 1.
Positioning axis type 2
Positioning axes of type 2 also continue across block limits in single block mode.
Positioning axis type 3
Positioning axes of type 3 also continue across block limits in single block mode.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
11.8 Response with special functions
PLC-controlled axis
channel-specific
IS DB 21, ... DBX6.0 ("feed disable") is not effec‐
tive. This axis is not stopped when feed disable is
activated, but continues to move.
the axis is not taken into account when
IS DB 21, ... DBX36.3 ("all axes stationary") is
generated. This signal is output with 1 even if all
other axes in the channel are stationary and only
the PLC-controlled axis is active.
P2: Positioning axes
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