13-26Communications Protocols
Ethernet
Trio Motion Technology
Ethernet
The Ethernet daughter board P296 can be fitted to both the MC206 and MC224
Motion Coordinators. This section describes how to set up a simple Ethernet
connection to the P296.
Default IP Address
The IP address (Internet Protocol address) is a 32-bit address that has two parts:
one part identifies the network, with the network number, and the other part
identifies the specific machine or host within the network, with the host number.
An organization can use some of the bits in the machine or host part of the
address to identify a specific subnet. Effectively, the IP address then contains
three parts: the network number, the subnet number, and the machine number.
The 32-bit IP Address is often depicted as a dot address (also called dotted quad
notation) - that is, four groups of decimal digits separated by points.
For example, the Trio Ethernet daughter board has a default IP of:
192.168.000.250
Each of the decimal numbers represents a string of eight binary digits. Thus, the
above IP address really is this string of 0s and 1s:
11000000.10101000.00000000.11111010
As you can see, points are inserted between each eight-digit sequence just as
they are in the decimal version of the IP address. Obviously, the decimal version
of the IP address is easier to read and that's the form most commonly used
(192.168.000.250).
Part of the IP address represents the network number or address and another
part represents the local machine address (also known as the host number or
address). IP addresses can be one of several classes, each determining how many
bits represent the network number and how many represent the host number. IP
addresses are grouped by classes A,B,C, D and E. The Trio ethernet board is set
up for a Class C address.
Using the above example, here's how the IP address is divided:
<-Network address->.<-Host address->
192.168 . 000.250
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