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TCP/IP Ethernet Communications User’s Manual – January 1996C-2
GFK-1004B
(a) an Ethernet Interface with PROM version 2.00 or higher and
(b) a PLC CPU with firmware version 5.03 or higher.
The Config Mode Software switch may only be configured in Logicmaster 90-70 versions
6.01 and higher. The default setting is TCP/IP. If your Logicmaster 90-70 version is less
than 6.01, the Config Mode field is not displayed on the Logicmaster 90-70 screen, but is
automatically set to MMS-ETHERNET.
Station Address
The Station Address parameter defines the station’s MAC address used on the network.
Unless your network is using local address administration, this value should be left at
the default value (all zeroes). This allows the factory assigned, unique default station
address (which appears on the default station address label on the controller board) to
be used as the MAC address.
If you are using local address administration, this Soft Switch parameter is used to set
the station address to a valid locally-administered individual station address. If you are
not familiar with MAC address formats, refer to “Structure of the MAC Address” in
Chapter 3.
Caution
If you assign a new MAC address, record its value. Setting an
improper MAC Address value, or duplicating the address of another
station can disrupt other stations on the network.