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Introduction
18
890USE17700 April 2004
Standard
CANopen
Devices
You may also install one or more standard CANopen devices on an island. These
devices are not auto-addressable, and they must be installed at the end of the island
bus. If you want to install standard CANopen devices on an island, you need to use
an STB XBE 2100 CANopen extension module as the last module in the last
segment.
Because standard CANopen devices cannot be auto-addressed on the island bus,
they must be addressed using physical addressing mechanisms on the devices. The
standard CANopen devices together with the CANopen extension module form a
sub -network on the island bus that needs to be separately terminated at the
beginning and end. A terminator resistor is included in the STB XBE 2100 CANopen
extension module for one end of the extension sub-network; the last device on the
CANopen extension must also be terminated with 120 Ω. The rest of the island bus
needs to be terminated after the CANopen extension module with an
STB XMP 1100 termination plate:
1 primary segment
2 NIM
3 STB XBE 1000 EOS bus extension module
4 1 m length STB XCA 1002 bus extension cable
5 extension segment
6 STB XBE 2100 CANopen extension module
7 STB XMP 1100 termination plate
8 typical CANopen cable
7 standard CANopen device with 120 Ω termination
Length of the
Island Bus
The maximum length of an island bus—the maximum distance between the NIM and
the last device on the island—is 15 m (49.2 ft). This length must take into account
the extension cables between segments, extension cables between preferred
modules, and the space consumed by the devices themselves.
Note: If you want to include standard CANopen devices in your island, you need
to configure the island using the Advantys configuration software, and you need to
configure the island to operate at 500 kbaud.
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