Siemens SINUMERIK 840Di Function Manual page 469

1.2 Overview of auxiliary functions
1.2
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
Application
Controlling machine functions in synchronism with the part program.
General remarks
• The following M functions have a predefined meaning: M0, M1, M2, M17, M30
• For each M function (M0 - M99), there is a dynamic signal at the NC/PLC interface that
• For subroutines, there are machine data in which you can set whether the M function for
• For the predefined M function M40 – M45, only limited redefinition of the output
• The predefined auxiliary functions M0, M1, M17, M30, M6, M4, M5 cannot be redefined.
Auxiliary Function Output to PLC (H2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Meaning
- - -
Meaning
Spindle number
Meaning
Any
M3, M4, M5, M6, M19, M70, M40, M41, M42, M43, M44, M45.
indicates the validity (new output) of the M function. In addition, 64 further signals can be
assigned for user M functions.
References
/FB/ Description of Function Basic Machines; PLC Basic Program (P3)
the end of part program (M17, M2, and M30) will be output to the PLC:
MD20800 $MC_SPF_END_TO_VDI
specification is possible.
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
1-3