Siemens SINUMERIK 840D sl Function Manual page 379

M (special function)
Remarks:
The address extension is 0 for the range between 0 and 99.
Mandatory without address extension: M0, M1, M2, M17, M30
Range of values Meaning
1 ... 20 Spindle number
Remarks:
M3, M4, M5, M19, M70 with address extension as the spindle number. (e.g. M2=5; spindle stop for spindle 2).
Without an address extension, the function influences the master spindle.
Range of values Meaning
0 ... 99 Any
Remarks:
User-specific M functions.
See "Meaning of footnotes" at the end of the overview.
8)
Use
Controlling machine functions in synchronism with the part program.
Further information
● The following M functions have a predefined meaning: M0, M1, M2, M17, M30
M3, M4, M5, M6, M19, M70, M40, M41, M42, M43, M44, M45.
● For each M function (M0 - M99), there is a dynamic signal at the NC/PLC interface that
indicates the validity (new output) of the M function. In addition, 64 further signals can be
assigned for user M functions (see Section "P3: Basic PLC program for SINUMERIK 840D
sl (Page 821)").
● For subprograms, machine data can be used to set whether an output of the M function
should be undertaken for the end of the part program M17, M2 and M30 to the PLC:
MD20800 $MC_SPF_END_TO_VDI (subprogram end to PLC)
● For the predefined M function M40 – M45, only limited redefinition of the output specification
is possible.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Range of values
1 ... 99
Range of values
100 ... 2147483647
H2: Auxiliary function outputs to PLC
Type Meaning
INT Function
Type Meaning
INT Function
8.1 Brief description
Number
8)
5
Number
8)
5
379