Installation guide

Installation

890USE17100 September 2003 55

Installing the Last Device on the Primary Segment

One or More

Segments?

The last device on the island bus needs to be terminated with a 120 Ω terminator

resistor. If the island bus ends at the last module on the primary segment (if the

island bus is not extended), then the segment needs to be terminated with the

STB XMP 1100 termination plate which houses a 120 Ω termination resistor. If the

island bus is extended to either another segment of Advantys STB modules, a

preferred module or to some other compatible device, do not use the termination

plate at the end of the primary segment. Instead, an STB XBA 2400 type 2 base

carrying an end-of-segment module (EOS) or a CANopen extension module should

be used.

Termination

Options

The following table describes the different ways to terminate the island bus,

depending on the type of installation.

If the island bus ... then ...

comprises just the primary

segment with no extensions

terminate the segment with an STB XMP 1100 termination

plate.

needs to be extended to

another segment of

Advantys STB modules

install an STB XBA 2400 base at the end of the segment. This

base will hold an STB XBE 1000 EOS module.

The EOS module provides an interconnect for a bus extension

cable that will run to an STB XBE 1200 beginning-of-segment

(BOS) module in the first location of the extension segment.

needs to be extended to a

preferred module

install an STB XBA 2400 base at the end of the segment. This

base will hold an STB XBE 1000 EOS module.

The EOS module provides an interconnect for a bus extension

cable that will run to the preferred module.

needs to be extended to a

standard CANopen device

install an STB XBA 2400 base at the end of the last segment,

followed by an STB XP 1100 termination plate.

STB XBA 2400 base will hold an STB XBE 2100 CANopen

extension module.

The CANopen extension module provides an interconnect for

a standard CANopen cable that will run to the CANopen

device. The standard CANopen device/s will be the last device

on the island.