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GFK-1004B
Chapter 2 Installing the Ethernet Interface
Configuration Mode: This defines the Logicmaster configuration mode. MMS-Ethernet
mode is required for Ethernet Interface firmware 1.15 or earlier.
Status Address: This is the location in PLC CPU memory of the sixteen (16) LAN
Interface Status (LIS) bits. To specify the location of the Channel Status bits, use the
Assign Channel Status Vector COMMREQ.
Note
Do not use the 16 bits assigned to the LIS bits for other purposes or your
data will be overwritten.
Status Length: For MMS-Ethernet configuration mode, this is fixed at 16 bits.
Station Address: The Station address is the MAC address of the Ethernet Interface. If
this field is left as all zeroes, the factory-assigned default MAC address (see the label on
the Ethernet Interface’s faceplate).
LAN Controller Load Source: This identifies where the Ethernet Interface should look for
a GSM download. The choices are:
SERIAL PORT - Only look for a download through the 9-pin serial port on the front
of the Ethernet Interface.
NETWORK - Only look for a download through the Ethernet network.
POLL ALL SOURCES - Alternate looking for a download from the serial port and
from the Ethernet network.
LAN Online: This parameter allows the Ethernet Interface to access the Ethernet
network (YES) or not (NO) after completing its power-up diagnostics. A setting of NO
will prevent any network activity until a configuration with a YES setting is received by
the Ethernet Interface.
Backplane Online: This parameter allows (YES) or disallows (NO) data transfer across
the PLC VME backplane. A setting of NO will prevent any COMMREQs and prevent
any host-requested data transfers from occurring until a configuration with a YES setting
is received by the Ethernet Interface.
Network Load Address: This specifies the GSM “group” to which this Ethernet Interface
belongs. If there is only one GSM on the network, or if this Ethernet Interface will only
be loaded serially, then this parameter should be left at the default value of all zeroes.