1.
2.
3.
4.
-
-
-
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 97: Logical View of Indirect Ethernet-based Fieldbus Communicaton (Communication via PLC)
A
Fieldbus
B
VLT
®
Servo Toolbox host system
N O T I C E
The logical view only shows the connectivity from a high-level software perspective and does not reflect the actual physical
topology of the network.
6.17.4.3.2 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.
6.17.4.3.3 Enabling Indirect Communication
Carry out the following steps to enable indirect communication.
N O T I C E
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 check-
sums 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:
Procedure
Open the
Network and Sharing Center
.
Select
Change adapter settings
.
Right-click on the network interface used for fieldbus communication and select
Properties
.
If the TCP/IPv6 is available for the network interface, disable it.
AQ262449648484en-000101 / 175R1135 | 133
Danfoss A/S © 2020.08
Commissioning
VLT® Servo Drive System ISD 510/DSD 510
Operating Guide