Siemens SINUMERIK 840Di sl Commissioning Manual page 387

②
Each machine axis is assigned to a drive via machine data MD30110
$MA_CTRLOUT_MODULE_NR[0] (setpoint value assignment) and MD30220
$MA_ENC_MODULE_NR[0] (actual value assignment).
The logical drive number m to be entered in the two machine data refers to the entry with the
index n=(m-1) in the list described under Point 1 MD13050
$MN_DRIVE_LOGIC_ADDRESS[n].
③
Which channel axis will use which machine axis is defined explicitly and how many channel
axis are there in the channel is defined implicitly via machine data MD20070
$MC_AXCONF_MACHAX_USED[n] (machine axis number valid in channel)
The machine axis number m to be entered in the machine data (with m=1,2,3...) is referred
to the appropriate machine axis m.
④
Which channel axis is a geometrical axis is defined explicitly and how many geometry axes
exist in the channel is defined implicitly via machine data MD20050
$MC_AXCONF_GEOAX_ASSIGN_TAB[n] (assignment of geometry axis to channel axis) (n
= 0...2).
The channel axis number k to be entered in the machine data (k=1,2,3...) is referred to the
entry with the index n (n=(k-1)=0,1,2...) in the list of the channel axes MD20070
$MC_AXCONFIG_MACHAX_USED[n] (see Point 3).
Machine data
Table 11-14 Axis configuration: Machine data
Number Name
General ($MN_ ... )
13050 DRIVE_LOGIC_ADDRESS
Channelspecific ($MC_ ... )
20050 AXCONF_GEOAX_ASSIGN_TAB
20070 AXCONF_MACHAX_USED
Axisspecific ($MA_ ... )
30110 CTRLOUT_MODULE_NR
30220 ENC_MODULE_NR
References:
/FB/ Function Manual - Basic Functions; K2 Axes, Coordinate Systems, Frames, Workpiece
numbers Actual-Value System, Section "Axes"
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
NC Commissioning with HMI Advanced
Name/remarks
I/O address of drive
Assignment of geometry axis to channel axis
Machine axis number valid in channel
Setpoint assignment
Actual value assignment
11.5 Axes and spindles
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