Installation guide

134 Documenting the Network Layout
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4.10 Materials Summary W orksheet
When your planning of the network layout and cable routing is
complete, you can use the Materials Summary Worksheet to list the
required components and start an ordering process. Use the worksheet
to list the types of materials, part numbers, manufacturers/sources,
and quantities to be ordered. Some items are already listed to start
your planning. Enter any additional items into the blank lines
provided.
Use additional worksheets if more space is needed. If you are planning
multiple networks, you can use one worksheet for each network and
then summarize your requirements on a final worksheet.
Dual-cable Networks
Your final worksheet should contain the total of all materials you will
be specifying and ordering for both cable runs. Note that RR85
Repeaters are used separately on each cable. Where an RR85 is used
between nodes on one cable run, another RR85 must appear between
the same nodes on the other cable run.
Figure 50 is an example of a completed MaterialsSummary Worksheet.
It lists materials for a network of four nodes (two programmable
controllers, one SA85 Network Adapter, and one BP85 BridgePlus),
plus one additional connector for future service access. The example
also shows provisions for service spares.
Top of W orksheet
If applicable, identify the plant facility or area, network, and project.
Show how to contact the responsible project engineer and maintenance
person.
Network Devices
Summarize the devices that will be connected to the network. For
programmable controllers, list the model numbers and quantities of
each type.
Avoid duplication when summarizing your device requirements. When
you include an RR85 Repeater to join two network sections, make sure
to count that device only once. Note that separate RR85 Repeaters are
used on each cable on a dual-cable system. When you include a BP85
Bridge Plus to join two networks, count thedevice only once.