Siemens SINUMERIK 840Di Manual page 310

10 NC Start-Up with HMI Advanced
10.5 Axes and spindles
1
2
3
4
10-310
The machine data
S
MD13050: DRIVE_LOGIC_ADDRESS[n] (I/O address of the drive)
tells the NC the I/O addresses of the drives defined in the S7 project using "HW
Config".
The machine data index (n+1) constitutes the logical drive number for the NC.
The machine data
S
MD 30110: #MODULE_NR[0] (setpoint assignment)
S
MD 30220: ENC_MODULE_NR[0] (actual-value assignment)
are used to assign each individual machine axis to a drive.
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:
DRIVE_LOGIC_ADDRESS[n].
The machine data
S
MD 20070: AXCONF_MACHAX_USED[n] (machine axis number valid in
channel)
defines explicitly which channel axis and which machine axis is used and de-
fines implicitly how many channel axes exist in the 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.
The machine data
S
MD 20050: AXCONF_GEOAX_ASSIGN_TAB[n] (assignment geometry axis
– channel axis) (n = 0...2)
defines explicitly which channel axis is a geometry axis and defines implicitly
how many geometry axes exist in the channel.
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: AXCONFIG_MACHAX_USED[n] (see Point 3).
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03