Siemens SINUMERIK 840D sl Commissioning Manual page 324

Fundamentals
15.7 Axis data
Figure 15-7
(1)
(2)
324
Axis assignment
The I/O addresses of the drives defined in the S7 project using "HW Config" are contained in
the following machine data.
MD13050: DRIVE_LOGIC_ADDRESS[n] (I/O address of the drive)
The machine data index (n+1) is the logical drive number for the NC.
Te following machine data are used to assign each individual machine axis to a drive.
MD30110: MODULE_NR[0] (setpoint assignment)
MD30220: 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: DRIVE_LOGIC_ADDRESS[n].
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
IBN CNC: NCK, PLC, drive