Siemens SINUMERIK 840D sl Function Manual page 495

Definition of an auxiliary function
An auxiliary function is defined by the following parameters:
• Type, address extension, and value
• Output behavior
• Group assignment
For more detailed information on auxiliary function output to the NC/PLC interface, see:
References:
/FB1/ Function Manual, Basic Functions, Basic PLC Program (P3)
1.2 Overview of auxiliary functions
M functions
M (special function)
Address extension
Value range
0 (implicit)
Remarks:
- - -
Value range
1 - 12
Remarks:
Example: "Spindle stop" for 2nd spindle of the channel: M2=5.
The master spindle of the channel is addressed if no an address extension is specified.
Value range
0 - 99
Remarks:
User-specific M function
Basic logic functions: Auxiliary Function Output to PLC (H2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
The 3 parameters are output to the NC/PLC interface.
The auxiliary-function-specific output behavior defines for how long an auxiliary function
is output to the NC/PLC interface and when it is output relative to the traverse movement
programmed in the same parts program block.
An auxiliary function can be assigned to a particular auxiliary function group. The output
behavior can be defined separately for each auxiliary function group. This becomes
active if no auxiliary-function-specific output behavior has been defined. Group
membership also affects output of an auxiliary function after block search.
Meaning
- - -
Meaning
Spindle number
Meaning
Any
Value
Value range
up to 8 digits
Value range
1 – 99
Value range
2147483647
1.2 Overview of auxiliary functions
Type Meaning
INT Function
Type Meaning
INT Function
Type Meaning
INT Function
Brief description
Number
8)
5
Number
8)
5
Number
8)
5
7