N O T I C E
Disabling of the auto-crossover function requires crossed Ethernet cables for daisy-chaining the options.
Parameter 12-92 IGMP Snooping
Table 662: Parameter 12-92 IGMP Snooping
Default value: [1] Enabled
Change during operation: True
This function presents flooding of the Ethernet protocol stack by only forwarding multicast packets to ports that are a member of
the multicast group.
Parameter 12-93 Cable Error Length
Table 663: Parameter 12-93 Cable Error Length
Parameter type: Range, 0 - 65535
Change during operation: True
If cable diagnostics is enabled in parameter 12-90 Cable Diagnostic, the built-in switch is possible via time domain reflectometry
(TDR). This is a measurement technique which detects common cabling problems such as open circuits, short circuits, and impe-
dance mismatches or breaks in transmission cables. The distance from the option to the error is shown in meters with an accuracy of
±2 m (6.6 ft). The value 0 means no errors detected.
Parameter 12-94 Broadcast Storm Protection
Table 664: Parameter 12-94 Broadcast Storm Protection
12-94 Broadcast Storm Protection
Parameter type: Range, -1 - 20%
Change during operation: True
The built-in switch is capable of protecting the switch system from receiving too many broadcast packages, which can use up net-
work resources. The value indicates a percentage of the total bandwidth that is allowed for broadcast messages. Example: OFF
means that the filter is disabled - all broadcast messages are passed through. The value 0% means that no broadcast messages are
passed through. A value of 10% means that 10% of the total bandwidth is allowed for broadcast messages. If the amount of broad-
cast messages exceeds the 10% threshold, they are blocked.
AU275636650261en-000101 / 130R0334370 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide
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