User Manual Owner manual

Chapter 1
Installing Your ControlNet PLC5 Processor
1-14
Use 1770-CD cable to connect the processor to a DH+ link.
Follow these guidelines while installing DH+ communication links:
do not exceed these cable lengths:
- trunk-cable length—3,048 m (approximately 10,000 cable-ft)
- drop-cable length—30.4 m (approximately 100 cable-ft)
do not connect more than 64 stations on a single DH+ link
19339
82W or 150W resistor
Clear
Shield
Blue
Clear
Shield
Blue
82Ω or 150W resistor
Use the 3pin connector on the processor to
connect a DH+ link. The connector's port must be
configured to support a DH+ communication link.
You can install a DH+ link two ways:
• trunk cable/drop cablefrom the drop cable to
the connector screw terminals on the DH+
connectors of the processor
• daisy chainto the connector screw terminals
on the DH+ connectors of the processor
To make connections:
1. Connect the signal conductor with clear
insulation to the 3pin connector terminal 1
at each end of each cable segment.
2. Connect the shield drain wire to the center
terminal of the 3pin connector at both ends
of each cable segment.
3. Connect the signal conductor with blue
insulation to the 3pin connector terminal 2
at each end of each cable segment.
PLC5/40C
Processor
PLC5/20C
Processor
More
For more information, see the Data Highway/Data
Highway Plus/Data Highway II/Data Highway 485
Cable Installation Manual, publication 17706.2.2.
Installing a DH+ Link