Danfoss VLT ISD 510 Operating Manual page 133

VLT® Servo Drive System ISD 510/DSD 510
Operating Guide
STATUS PSM STATUS DAM STATUS DAM
DEV
STO DEV DEV
STO STO
NET ST NET ST NET ST
AUX AUX
LINK/ACT
LINK/ACT LINK/ACT
X1 X1 X1
X2 X2 X2
X3 X3
LCP LCP LCP
PSM DAM DAM
510 510 510
1
PLC
Illustration 97: Logical View of Indirect Ethernet-based Fieldbus Communicaton (Communication via PLC)
A Fieldbus
B VLT Servo Toolbox host system
®
-
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
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.
When observing the network packets via Wireshark
transmitted are handed over to Wireshark
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
Disable IPv6 on the network interfaces used for communication on the PC:
Procedure
1.
Open the Network and Sharing Center.
2.
Select Change adapter settings.
3.
Right-click on the network interface used for fieldbus communication and select Properties.
4. If the TCP/IPv6 is available for the network interface, disable it.
Danfoss A/S © 2020.08
. . .
2 n
A
B
N O T I C E
N O T I C E
, checksum offloading often causes confusion as the network packets to be
®
before the checksums have been calculated. Wireshark
®
Servo Toolbox configures a routing table using the selected Network
®
preferences.
®
Commissioning
shows these empty check-
®
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