Siemens SINUMERIK 840D sl Commissioning Manual page 230

Communication between the NC and the drive
7.6 Configuring machine axes
Assignment:
1. Using this machine data, the NC is informed about the I/O addresses of the SERVO drive
objects defined in the PLC project:
MD13050 $MN_DRIVE_LOGIC_ADDRESS[n]
2. Using the following machine data, the setpoint and actual values of the machine axes are
assigned to the relevant drive objects:
– MD30110 $MA_CTRLOUT_MODULE_NR[0]
– MD30220 $MA_ENC_MODULE_NR[0]
The logical drive number m to be entered into both machine data, refers to the I/O address
entered in
3. Using machine data MD10000 $MN_AXCONF_MACHAX_NAME_TAB, the machine axes
in the NC are assigned a unique name. Index n addresses machine axis (n+1).
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under index n = (m - 1).
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA