EPA SM-Ethernet, User Manual

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SM-Ethernet User Guide
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5 Getting started
5.1 Minimum software versions required for Ethernet
Table 5.1 below, lists the minimum versions of software required for Ethernet
communication.
5.2 Network design considerations
Ethernet is an open system allowing many different vendors to design and supply
equipment. When designing an industrial network you must carefully consider the
topology and data traffic on the network to avoid potential problems.
To avoid bandwidth issues it is recommended that the control network is logically
separate from any other network. Where possible a physically separate network should
be used. If this is not possible, the use of managed network devices should be
considered to prevent unnecessary traffic such as broadcasts reaching the control
network.
5.3 Addressing
The addressing system used on Ethernet uses two essential numbers for making
connection, these are the IP address and the subnet mask. The address allows a
specific device to be located and the subnet mask defines how many bits represent the
subnet part of the address and how many bits represent the node address (
see section
5.7.1 The IP address on page 21). Generally devices on different subnets can only
communicate by using a gateway ( typically a router or firewall ).
5.4 Where do IP addresses come from?
Every address on a network must be unique. If you do not connect your network to any
other networks the assignment of IP addresses is not critical (
although using a standard
system is recommended ), as you have full control of the addresses used. The issue of
addressing becomes important when connecting multiple networks together or
connecting to the Internet where there is a strong possibility of duplication of addresses
if a scheme is not followed.
Table 5.1 Required software versions for communication over Ethernet
Product Software Version
Unidrive SP Version 01.06.00 or later
Commander SK Version 01.06.00 or later
Digitax ST Version 01.00.00 or later
Affinity Version 01.00.00 or later
Mentor MP Version 01.00.00 or later
SM-Applications Version 01.04.05 or later
SM-Ethernet Version 01.02.00 or later
OPC Server Version 03.01.00 or later
CTScope Version 01.00.00 or later
SyPTPro Version 02.01.00 or later
CTSoft Version 01.05.00 or later
The use of un-switched hubs is not recommended.
NOTE