Siemens SINUMERIK 802S Technical Manual page 120

Technical Appendix
Decoded M signals (M0 - M99)
2500
Data block
Byte Bit 7
25001000
M7
25001001
M15
25001002
M23
25001012
25001013
25001014
25001015
Notes:
6-26
M functions from CNC channel [r]
Bit 6 Bit 5
M6 M5
M14 M13
M22 M21
+ Static M functions must be generated by the PLC user from the dynamic M
functions.
+ Dynamic M functions are decoded by the basic program (M00 to M99).
Interface CNC
Bit 4 Bit 3
Dynamic M functions
M4 M3
Dynamic M functions
M12 M11
Dynamic M functions
M20 M19
...
...
...
Dynamic M functions
M99
Bit 2 Bit 1
M2 M1
M10 M9
M18 M17
M98 M97
SINUMERIK 802S base line
Bit 0
M0
M8
M16
M96
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