Rockwell Automation Publication 2711P-UM006A-EN-P - November 2010 125
Terminal Connections Chapter 7
Ethernet Cable
Use Belden 7921A shielded CAT5E cable according to TIA 568-B.1 and RJ45
connector according to IEC 60603-7 for compliance with Marine emission limits
and the European Union 89/336/EEC EMC Directive.
The maximum length of the Ethernet cable between the logic module’s Ethernet
port and a 10/100 Base-T port on an Ethernet hub (without repeaters or fiber) is
100 m (328 ft).
Security Considerations
IGMP (Internet Group Management Protocol) is used for IPv4 multicast. A
multicast is communication between a single sender and multiple receivers on a
network. IGMP is used to exchange membership status data between IPv4
routers that support multicasting and members of multicast groups. A router is an
intermediary device on a communication network that expedites message
delivery by finding the most efficient route for a message packet within a
network, or by routing packets from one subnetwork to another. A sub-network
is a separate part of an organization’s network identified through IP addressing.
PanelView Plus terminals provide level 2 (full) support for IPv4 multicasting
(IGMP version 2) as described in RFC 1112 and RFC 2236.
SNMP (Simple Network Management Protocol) is used for internal network
management and is not supported.
Ports 137 and 138 are normally open to support the NetBIOS protocol used by
Windows CE.NET similar to other Microsoft and IBM network operating
systems.
WARNING: Do not connect or disconnect any communication cable with
power applied to this device or any device on the network. An electrical
arc could cause an explosion in hazardous location installations. Be sure
that power is removed or the area is nonhazardous before proceeding.
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