4.2 Ethernet Link Parameters
Parameter group 12-1* Ethernet Link Parameters:
•
Parameter 12-10 Link Status
•
12-11 Link Duration
•
Parameter 12-12 Auto Negotiation
•
Parameter 12-13 Link Speed
•
12-14 Link Duplex
Each port has unique Ethernet Link Parameters.
Parameter 12-10 Link Status and 12-11 Link Duration
displays information on the link status, per port.
Parameter 12-10 Link Status displays Link or No Link
according to the status of the present port.
12-11 Link Duration displays the duration of the link on the
present port. If the link is lost, the counter is reset.
Parameter 12-12 Auto Negotiation is a feature that enables
2 connected Ethernet devices to select common
transmission parameters, such as speed and duplex mode.
In this process, the connected devices first share their
capabilities and then select the fastest transmission mode
they both support.
Incapability between the connected devices could lead to
decreased communication performance.
To prevent this, Auto Negotiation can be disabled.
If parameter 12-12 Auto Negotiation is set to OFF, link
speed and duplex mode can be configured manually in
parameter 12-13 Link Speed and parameter 12-12 Auto
Negotiation.
Parameter 12-13 Link Speed - displays/sets the link speed
for each port. If no link is present, “None” is displayed.
12-14 Link Duplex - displays/sets the duplex mode for each
port.
PROFINET Parameters Operating Instructions
MG90U302 Danfoss A/S © Rev. 2014-02-27 All rights reserved. 19
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