e3
0b
e3
09
.1
1
A
2
n
1
B
PLC
. . .
PSM
510
DAM
510
DAM
510
STATUS PSM
LINK/ACT
DEV
STO
NET ST
X1
LCP
LCP
LCP
X2
STATUS DAM
LINK/ACT
DEV
STO
NET ST
AUX
X1
X2
X3
STATUS DAM
LINK/ACT
DEV
STO
NET ST
AUX
X1
X2
X3
Illustration 102: Logical View of Indirect Ethernet-based Fieldbus Communication (Communication via PLC)
NOTICE
-
The logical view only shows the connectivity from a high-level software perspective and does not reflect the actual physical
topology of the network.
6.16.4.3.2 Network Settings for Indirect Communication
Any network interface can be used to communicate through a PLC. A dedicated network interface is not required.
When establishing the communication through a PLC, the VLT
®
Servo Toolbox configures a routing table using the selected Network
Address Translation (NAT). Adding a route to the Windows routing table requires administrator privileges. Therefore, administrator
credentials may be requested when initializing the connection.
6.16.4.3.3 Enabling Indirect Communication
Context:
Carry out the following steps to enable indirect communication.
NOTICE
When observing the network packets via Wireshark
®
, checksum offloading often causes confusion as the network packets to be
transmitted are handed over to Wireshark
®
before the checksums have been calculated. Wireshark
®
shows these empty
checksums as invalid, even though the packets contain valid checksums when they leave the network hardware later. Use 1 of
these 2 methods to avoid this checksum offloading problem:
-
Turn off the checksum offloading in the network driver if possible.
-
Turn off the checksum validation of the specific protocol in the Wireshark
®
preferences.
Disable IPv6 on the network interfaces used for communication on the PC:
Commissioning
Operating Guide | VLT® Multiaxis Servo Drive MSD 510 System
AQ262450196490en-000101 / 175R1170
136 | Danfoss A/S © 2019.10
Summary of Contents for VLT MSD 510
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