Rockwell-automation 2711P PanelView Plus Terminal User Manual Manuel d'utilisateur Page 180

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Vue de la page 179
180 Publication 2711P-UM001J-EN-P - November 2009
Chapter 7 Terminal Connections
DH+ Network Connections
Use the Belden 9463 twin axial or equivalent cable (cat. no. 1770-CD),
to connect a terminal to a DH+ link.
You can connect a DH+ link in two ways.
Trunk line/drop line - from the drop line to the connector screw
terminals on the DH+ connectors of the processor
Daisy chain - to the connector screw terminals on the DH+
connectors on the processor
Follow these guidelines when installing DH+ communication links.
do not exceed these cable lengths:
Trunk line-cable length: 3,048 m (10,000 ft).
Drop-cable length: 30.4 m (100 ft).
The maximum cable length is determined by baud rate.
Do not connect more than 64 stations on a single DH+ link.
PanelView Plus 400-1500
82 Ω terminating resistor for
230.4 Kbps
150 Ω terminating resistor for
57.6 Kbps and 115.2 Kbps
To Controller
Terminating Resistor
DH+ Port on Communication Module
Clear 1
Shield SH 2
Blue 3
Belden
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