Siemens SINUMERIK 840D sl Commissioning Manual page 271

Extending the quantity framework
With MD13160 $MN_SINAMICS_MAX_SLAVE_ADDRESS >0, all SINAMICS drives whose
bus address or device number (n +1) is greater than the entered value (n) are operated on the
PLC as standard slaves according to the PROFIdrive profile and are not included in the NC
quantity framework according to the above table. This address can be set individually for each
bus.
MD13160 $MN_SINAMICS_MAX_SLAVE_ADDRESS[i]
$MN_SINAMICS_MAX_SLAVE_ADDRESS[0]
$MN_SINAMICS_MAX_SLAVE_ADDRESS[1]
$MN_SINAMICS_MAX_SLAVE_ADDRESS[2]
$MN_SINAMICS_MAX_SLAVE_ADDRESS[3]
A distinction is made between the following scenarios:
● The default setting MD13160 $MN_SINAMICS_MAX_SLAVE_ADDRESS[i] = 0 means that
all connected and configured drives are included in the quantity framework.
● If $MN_SINAMICS_MAX_SLAVE_ADDRESS[i] > 0, all SINAMICS drives with a bus
address or device number greater than the entered value are not included in the quantity
framework, and can be used, for example, for further PLC axes.
Example:
So that all the drives connected via PROFINET, do not have to be taken into account in the NC
quantity framework, MD13160 $MN_SINAMICS_MAX_SLAVE_ADDRESS[3] must be = 1 (= n)
and must be configured in HW Config as the lowest device number 2 (= n+1).
Supplementary conditions
The extended operator control options for the PLC drives produce the following supplementary
conditions:
● Because the PLC drives create an additional communication load, the number of these drive
objects (DO) is limited depending on the NCU ⇒ observe the quantity framework:
● Alarm 380077 "PROFIBUS/PROFINET: Too many DOs: currently %2, maximum %3 in DO
group %1"
● Depending on the versions used, the texts displayed for the SINAMICS parameters and
messages may be incomplete.
● If the drives are assigned to the NC and distributed across several buses, such as DP and
DP integrated, then it must be ensured that each isochronous bus has the same cycle clock
settings. It is also true for the time of day synchronization via NC with telegram 390 that the
cycle settings match for each isochronous bus.
● A DO1 drive unit is required for the internal virtual PROFIBUS DP3 for access to the onboard
I/O including probe.
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA
Configuring PLC-controlled drives
9.2 Configuration via PROFIBUS
Highest address for each bus type:
PROFIBUS DP1 (X126)
PROFIBUS DP2 (X136)
PROFIBUS DP3 integrated
PROFINET (X150)
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