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IEEE 802.3 Ethernet Communication

ADDvantage-32 PLUS

8-1

SECTION VIII

IEEE 802.3 ETHERNET

COMMUNICATION

8.1 OVERVIEW

The Avtron ADDvantage-32 PLUS DC supports an 802.3 Ethernet star structured network. The

ADDvantage-32 PLUS supports both 100 base FX Fiber Optic and 10/100 base UTP Copper

Ethernet media. The Avtron Ethernet network is implemented using an Avtron ESBX Ethernet

board, P/N A26494 that can provide 100 Mbaud fiber full duplex IEEE 802.3 Ethernet

communications. One ESBX board is required for each ADDvantage-32 PLUS drive. The

ESBX board includes firmware to implement Ethernet protocols for GE, Modicon, and

Rockwell PLC interfaces. In addition, the firmware includes Avtron’s proprietary

communications protocol, Peer Primitive. The Peer Primitive protocol enables

Autoscan/Exchange communications among ADD-32 PLUS drives and provides the backbone

for high speed communications to Avtron’s Performance View Graphic Trending / Historical

Event Recorder and Avtron’s ADDAPT 2000 drive maintenance tool. The ESBX board can

communicate using up to four different Ethernet protocols simultaneously over the same

network cable which provides great flexibility in system design.

A managed high speed Ethernet Switch is usually provided with Avtron’s Ethernet based drive

systems. The Avtron provided Switch may include multiple 100 Mbaud fiber ports and

multiple 10/100 Mbaud copper ports. The managed Ethernet Switch is the central node of the

network and will guarantee deterministic communication to all nodes by providing one full

duplex 802.3 communication port for each device on the network. Full duplex operation of a

single device per port assures no data collisions can occur. Many of the provided Switches

have built in Switch diagnostic functions. These diagnostics greatly enhance network

maintenance capability by providing independent diagnostics for each port which can quickly

identify and localize a network problem.

Patch/Wic boxes may have been provided to manage excess fiber cable and provide a means to

connect each drive to the multi conductor field installed cable by way of an easily replaceable

fiber patch cord cable. In the event a fiber patch cable connected to an ADD-32 PLUS drive is

damaged, it is easy and inexpensive to replace the patch cable leaving the permanently installed

fiber cable undisturbed.

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Digital Acoustics ESBx-110 Especificaciones Pagina 357