Siemens SINUMERIK 840Di Function Manual page 467

Brief Description
1.1 Function
1.1
General
Auxiliary functions permit activation of NC system functions and PLC user functions.
Auxiliary functions can be programmed in part program blocks in the following:
• Part programs
• Synchronized actions
• User cycles
Detailed information on using auxiliary function output in synchronized actions is to be found
in:
References:
/FBSY/ Description of Functions 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
User-defined auxiliary functions
There are two uses for user-defined auxiliary functions:
• Extension of predefined auxiliary functions
• User-specific auxiliary functions
Auxiliary Function Output to PLC (H2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Function Example
Miscellaneous (i.e. M30
special) function
Spindle function S100
Tool number T3
Tool offset D1
Feed F1000
Meaning
End of program
Spindle speed 100, e.g. 1 rpm
Tool number 3
Tool cutting edge number 1
Feedrate 1000, e.g. mm/min
1
1-1