User Manual Owner manual

Chapter 1
Installing Your ControlNet PLC5 Processor
1-12
To insert/remove the processor into/from the chassis, do the following:
To insert a processor into the chassis:
1. Lift the locking bar and the ejector tab.
2. Slide the processor into the leftmost slot of the
I/O chassis.
3. Press down on the ejector tab, and then close the
locking bar over the processor.
To remove a processor from the chassis:
1. Save processor memory.
2. Remove power to the processorresident chassis.
3. Disconnect all cables from the processor's ports.
4. Lift the locking bar and the ejector tab, and then
slide the processor from the chassis.
19898
ATTENTION: Make certain that power to the chassis is
off before inserting or removing the processor.
!
Ejector
Tab
Locking
Bar
Card Guides
Install a remote I/O link using 1770-CD cable and either a daisy-chain or
trunk-cable/drop-cable configuration.
Verify that your system’s design plans specify cable lengths within
allowable measurements.
Important: The maximum cable length for remote I/O depends on the
transmission rate. Configure all devices on a remote I/O link to
communicate at the same rate.
Table 1.A
Correct
Cable Length Based on Communication Rate
A remote I/O link using this
communication rate:
Cannot exceed this
cable length:
57.6K bit/s
3,048 m (approximately 10,000 ft)
115.2K bit/s 1,524 m (approximately 5,000 ft)
230.4K bit/s 762 m (approximately 2,500 ft)
For proper operation, terminate both ends of a remote I/O link by using the
external resistors shipped with the programmable controller. Use either a
150W or 82W terminator.
Inserting/Removing the
Processor into/from the
I/O Chassis
Trunkcable/dropcable considerations:
When using a trunkcable/dropcable
configuration, use 1770SC station
connectors and follow these cable
length guidelines:
• trunkcable lengthdepends on the
communication rate of the link; see
Table 1.A
• dropcable length30.4 m
(100 cableft) maximum
Important: When using a trunkcable/
dropcable configuration, set your
communication rate to 57.6kK bit/s.
More
For more information about designing
trunkcable/dropcable configurations,
see the Data Highway/Data Highway
Plus/Data Highway II/Data Highway
485 Cable Installation Manual,
publication 17706.2.2.
Installing a Remote I/O Link