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Signals From Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

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Z1: NC/PLC interface signals
19.5 Help function output to PLC (H2)
DB21, ...
DBB194 - DBB206
Dynamic M functions: M0 - M99
Signal state 0 or
For a general help function output, the dynamic M signal bits are acknowledged by the PLC basic
edge change
program after the OB1 has been completely run-through (executed once).
1 → 0
For a fast help function output, after the PLC identifies the help functions, they are acknowledged in
the same OB40 cycle.
Application exam‐
Spindle clockwise/counterclockwise rotation, switch coolant ON/OFF
ple(s)
DB21, ...
DBX318.5
Associated M01/M00 active
Edge evaluation: No
Signal state 1 or
This bit indicates that an M00 or M01 help function is active if the appropriate associated M00 and
edge change
M01 (help functions) were enabled/activated beforehand.
0 → 1
Signal state 0 or
No associated M00/M01 help functions active.
edge change
1 → 0
Corresponding to ...
DB21, ... DBX30.5 (activate associated M01)
19.5.3

Signals from axis/spindle (DB31, ...)

DB31, ...
DBD78
F auxiliary function for positioning axis
Edge evaluation: no
The values of the F help functions for positioning axes are stored here. The axis to which each value
applies is determined by the extended address.
DB31, ...
DBD86
M auxiliary function for spindle
Edge evaluation: no
The values for the M3, M4, M5 help functions are sent to the associated interface for the addressed
spindle.
DB31, ...
DBD88
S auxiliary function for spindle
Edge evaluation: no
The values for the S help functions are sent to the associated interface for the addressed spindle.
1600
Signal(s) updated:
Signal(s) updated: Jobcontrolled
Signal(s) updated: Jobcontrolled
Signal(s) updated: Jobcontrolled
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions

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