Determining If You Need Repeaters - Allen-Bradley ControlNet 1786-6.2.1 Planning And Installation Manual

Determining If You Need
Repeaters
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1000 (3280)
750 (2460)
500 (1640)
Repeater not
Required
250 (820)
2
number of taps
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segment 1
If each segment is less than 250m,
each segment could contain up to
47 nodes (48 connections are
allowed on a 250m segment - 1 tap
for the repeater).
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For this input power:
85 to 250V ac or 110 to 250V dc
20 to 72V dc
•
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•
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When the repeater is:
working properly
not working properly (or a loss of power occurs)
Planning A ControlNet Cable System
Repeater
Required
30016-m
16 32 48
repeater
segment 2
Use this repeater:
1786-RPT
1786-RPTD
This contact:
will be held closed
will open
Publication 1786-6.2.1 - April 1988
2-7