6
vacon • 62
Commissioning
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
6.1.4
IP Mode and IP settings
The IP mode determines how the option board IP settings are set. There are three IP modes
available: DHCP, Fixed IP and DCP. By default, the option board is in DHCP mode.
IP is divided into 4 parts (octets). In the parameters menu, you can see stored IP settings, and the
monitoring values always show the currently used IP settings.
IP mode: DHCP
If a DHCP mode is selected, the option board tries to retrieve its IP settings from the DHCP server
connected to the local network. If the option board is unable to retrieve its IP settings, it sets a link-
local address as the current IP address after about one minute (for example 169.x.x.x). Changing the
IP settings (IP address, subnet mask or gateway) does not have any effect when IP mode is "DHCP".
If PROFINET IO is used and the IP settings are set via DCP protocol, the IP mode is changed to "Fixed
IP" and IP settings from DCP are taken in to use. In this IP mode, the IP settings are stored
permanently even if DCP protocol sets values as temporary.
IP mode: Fixed IP
In this mode, the IP settings are taken from the parameters, and monitoring values will always show
the same settings when the Ethernet link is up. The IP settings can be changed from the control
panel, PC tools or via fieldbus. If PROFINET IO is used and the IP settings are set via DCP protocol,
the IP settings are stored permanently even if DCP protocol sets values as temporary.
IP mode: DCP
Since OPTEA fimware version V002 and OPTE9 version V008, it is also possible to set the mode to
"DCP". Use this mode with PROFINET IO as it usually uses DCP protocol for the IP settings. You can
also use it with other protocols. Note that DCP protocol itself is available in option board only when
PROFINET IO is been used.
The PROFINET IO DCP protocol can be used to set temporary IP settings. This means that after the
device is restarted, the option board does not have IP settings. The PLC then must set the IP address
again before starting the communication. When temporary IP settings are set, those values are
shown only in monitoring view. Parameters will show whatever IP settings were previously stored.
When device is restarted, option board will use 0.0.0.0 as its IP address. Permanent IP settings are
always stored and used after device restart.
IP settings are locked after they have been set by using DCP protocol and can be only modified via
DCP. After device restart, IP settings can be modified from panel, PC tools etc. until they have been
set by using DCP protocol. This enables changing IP address locally even in DCP mode when, for
example, PLC is offline.
6.1.5
Speed and duplex
Ethernet link speed and duplex can be set by changing this parameter. We always recommend to
use "autonegotiation"-mode. Change this value only if you have very specific needs. Note that if
Ethernet link in one end is in fixed mode (for example 100Mb Full Duplex) and the other end is using
autonegotiation, the autonegotiation end can detect speed, but is unable to detect duplex. Option
board will revert to Half Duplex mode if autonegotiation of duplex mode fails. Communication
problems can be expected if the ends of the link are in different modes.
Note also that "100 Mb full duplex" is required for fast paced fieldbus process control. Lower speed
or half duplex will generate communication problems when shortest cycle times for process data
are used.
Summary of Contents for optea
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