Siemens SINUMERIK 840D sl Function Manual page 1599

DB21, ... H functions 1 to 3
DBB140 - DBB157
Extended address H functions 1 to 3
Edge evaluation: No
Signal state 1 or Up to 3 H functions programmed in an NC block are made available here simultaneously as soon as
edge change the H change signals are available.
0 → 1
Value range of the H function: Floating point (corresponding to the MC5+format)
Value range of the extended address: 0 to 99; integer number
The H functions remain valid until they are overwritten by new H functions.
Signal state 0 or
● After the PLC has ramped-up.
edge change
● All help functions are deleted before a new function is entered.
1 → 0
Application exam‐ Switching functions on the machine.
ple(s)
DB21, ... F functions 1 to 6
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
● After the PLC has ramped-up.
edge change
● All help functions are deleted before a new function is entered.
1 → 0
Application exam‐ Control of programmed F word by the PLC, e.g. through overwriting of the set feed rate override.
ple(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
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Signal(s) updated: job-controlled by NCK
Signal(s) updated: job-controlled by NCK
Signal(s) updated: job-controlled by NCK
Z1: NC/PLC interface signals
19.5 Help function output to PLC (H2)
1599