Legacy Features; Network Compatibility Mode - Leroy-Somer digitax st User Manual

13

Legacy features

13.1

Network compatibility mode

Table 13.1
Pr MM.41
A backwards compatibility mode has been added in SM-PROFIBUS DP-V1 firmware
V03.01.00 and later. Pr MM.41 can now be used to allow the SM-PROFIBUS DP-V1
module to appear as either a UMV 4301 / DMV 2322/2342 or a Digidrive SE, this only
applies to the network and not the control/status words and parameter sizes. The
module must be configured to match the existing network settings of the drive it is
replacing (including any parameter mappings).
Table 13.2 Compatibility mode settings
Pr MM.41 Description
0
1
2
Using the compatibility mode allows the replacement of drives on a PROFIBUS-DP
network, without having to make any changes to the master network configuration, it
changes the identity code of the module so that the master believes that a different drive
is present for a particular node.
When using the compatibility mode the drive can only act within the limitations of the
drive it is simulating (i.e. four IN words and four OUT words).
When using compatibility mode, ensure that the correct GSD file for the simulated drive
NOTE
is being used and not the actual drive (Unidrive SP / Digitax ST / Mentor MP/ Affinity /
Digidrive SK).
Depending on the application an SM-Applications module may be needed to account for
NOTE
any changes between the functionality of the two drives (i.e. any changes between the
control and status words).
This mode only changes the network to emulate the Digidrive SE or UMV 4301 on the
network. Changes to the control method and data size differences must still be
considered. This mode does NOT allow direct replacement.
WARNING
If a network compatibility mode is selected (Pr MM.41<>0) then both DP-V1 functionality
NOTE
and the PROFIdrive (V4) profiles will not be available.
SM-PROFIBUS DP-V1 User Guide
Issue : a
Network compatibility mode
Default
Range
Access
SM-Profibus DP (default)
UMV 4301 / DMV 2322/2342
Digidrive SE
www.leroy-somer.com
0 (SM-Profibus)
0 to 2
RW
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