Siemens SINUMERIK 828D Function Manual page 1665

F functions 1 to 6
DB21, ...
DBB158 - DBB193
Extended address F functions 1 to 6
Edge evaluation: No
Signal state 1 or Up to 6 F functions (one path feed and up to 5 axis-specific feeds for
edge change positioning axes) are made available here simultaneously as soon as the F change
0 → 1 signals are available.
Value range of F function: Floating point (corresponding to the MC5+format)
Value range of the extended address: 0 to 18; integer number
The extended address of the F function is generated from the feed type (path feed or axis-specific
feed) and the axis names.
It is coded as follows:
The F functions remain until they are overwritten by new F functions.
Signal state 0 or •
edge change
•
1 → 0
Application Control of programmed F word by the PLC, e.g. through overwriting of the set feed rate override.
example(s)
Corresponding to ... MD22240 $MC_AUXFU_F_SYNC_TYPE (output time of F functions)
DB21, ...
DBB194 - DBB206 Dynamic M functions: M0 - M99
Edge evaluation: No
Signal state 1 or The dynamic M signal bits are set by decoded M functions.
edge change
0 → 1
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 Spindle clockwise/counterclockwise rotation, switch coolant ON/OFF
example(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)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Signal(s) updated: job-controlled by NCK
After the PLC has ramped-up.
All help functions are deleted before a new function is entered.
Signal(s) updated: job-controlled by NCK
Signal(s) updated:
Z1: NC/PLC interface signals
19.5 Help function output to PLC (H2)
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