Detailed Description
2.8 Help function output to PLC (H2)
Basic logic functions: NC/PLC interface signals (Z1)
78 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
DB21, ...
DBB194 - DBB206
Dynamic M functions: M0 - M99
Edge evaluation: no Signal(s) updated: Jobcontrolled by NCK
Signal state 1 or
edge change
0 → 1
The dynamic M signal bits are set by decoded M functions.
Signal state 0 or
edge change
1 → 0
For a general help function output, the dynamic M signal bits are acknowledged by the PLC basic
program after the OB1 has been completely run-through (executed once).
For a fast help function output, after the PLC identifies the help functions, they are acknowledged in
the same OB40 cycle.
Application
example(s)
Spindle clockwise/counterclockwise rotation, switch coolant ON/OFF
DB21, ...
DBX318.5
Associated M01/M00 active
Edge evaluation: no Signal(s) updated:
Signal state 1 or
edge change
0 → 1
This bit indicates that an M00 or M01 help function is active if the appropriate associated M00 and
M01 (help functions) were enabled/activated beforehand.
Signal state 0 or
edge change
1 → 0
No associated M00/M01 help functions active.
Corresponding to .... DB 21; ... DBX30.5 (activate associated M01)
2.8.3 Signals from axis/spindle (DB31, ...)
DB31, ...
DBD78
Value of F help function
Edge evaluation: no Signal(s) updated: Jobcontrolled
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
Value of M help function
Edge evaluation: no Signal(s) updated: Jobcontrolled
The values for the M3, M4, M5 help functions are sent to the associated interface for the addressed
spindle.
DB31, ...
DBD88
Value of S help function
Edge evaluation: no Signal(s) updated: Jobcontrolled
The values for the S help functions are sent to the associated interface for the addressed spindle.
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