Siemens SINUMERIK 840C - Manual (Page 321)

6 NC Machine Data (NC MD), NC Setting Data (NC SD) 07.97
6.6.3 Channel-specific MD bits 1 (channel bits)
6.6.3 Channel-specific MD bits 1 (channel bits)
7 6 5 4 3 2 1 0
Bit No.
NC MD
540*
No transform-
ation deselect
on RESET
F value in
m/min
Spindle
setpoint
output
(S analog)
G functions
to PLC
Aux.
functions to
PLC
Default value
MD 840C (T) 840C (M)
5400 0000 0101 0000 0001
5401 0000 0001 0000 0001
5402 0000 0001 0000 0001
5403 0000 0001 0000 0001
5404 0000 0001 0000 0001
5405 0000 0001 0000 0001
Bit 7 A key-initiated Reset, mode change or M2/M30 does not deselect
transformation (TRANSMIT).
Active:
RESET
Note:
For as from SW 6, transformation is always deselected on warm restart
irrespective of the setting of MD bit ”No transformation deselection on
RESET”.
Transformation is always deselected in 'Reference point approach'
mode.
Bit 6 Causes the F value to be programmed in m/min.
This MD affects all metric input systems. The maximum axial speeds
specified in the machine data are not affected (input unit is still 'units').
Programming of F10 Speed 10 m/min
The feedrate display depends on the status of this bit. The feedrate for
F external and dry run is not converted into m/min. This MD has no
effect on "inch" systems, i.e. the feedrate is always defined in
inches/min.
Active:
In the next block
Bit 2 S analog
If this bit is set, it is possible to output analog spindle setpoints.
Bit 1 Bit 1 = 0 Inhibits G function output to the PLC
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SINUMERIK 840C (IA)