H2: Auxiliary Function Outputs To Plc; Brief Description; Function - Siemens SINUMERIK 840D sl Function Manual

H2: Auxiliary function outputs to PLC

8.1

Brief description

8.1.1

Function

Auxiliary functions permit activation of the system functions of the NCK and PLC user functions.
Auxiliary functions can be programmed in:
● Part programs
● Synchronized actions
● User cycles
For detailed information on the use of auxiliary function outputs in synchronized actions, see:
References:
Function Manual, Synchronized Actions
Predefined auxiliary functions
Predefined auxiliary functions activate system functions. The auxiliary function is also output
to the NC/PLC interface.
The following auxiliary functions are predefined:
Type
M
S
T
D, DL
F
Userdefined auxiliary functions
User-defined auxiliary functions are either extended predefined auxiliary functions or user-
specific auxiliary functions.
Extension of predefined auxiliary functions
Extension of predefined auxiliary functions refers to the "address extensions" parameter. The
address extension defines the number of the spindle to which the auxiliary function applies.
The spindle function M3 (spindle right) is predefined for the master spindle of a channel. If a
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Function
Additional function
Spindle function
Tool number
Tool offset
Feedrate
Example Meaning
M30 End of program
S100 Spindle speed 100 (e.g. rpm)
T3 Tool number 3
D1 Tool cutting edge number 1
F1000 Feedrate 1000 (e.g. mm/min)
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