Caple CE1500 Bedienungsanleitung PDF herunterladen (Seite 173)

Publication 2711P-UM001G-EN-P - September 2007 173

Terminal Connections Chapter 7

Cables

The PanelView Plus devices require category 5 twisted-pair cables.

The maximum cable length between the terminal’s Ethernet port and

a 10/100 Base-T port on an Ethernet hub (without repeaters or fiber)

is 100 m (328 ft). In industrial applications, keep the cable length to a

minimum. For additional information, refer to the EtherNet/IP Media

Planning and Installation Manual, publication ENET-IN001.

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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Caple CE1500 Bedienungsanleitung Seite 173