Rockwell Automation 1771-KA2 Communication Adapter Module - Manual (Page 23)

Station Hardware
Chapter 2
2-13
A 1771-KA2 module requires the following cables for installation:
Data Highway/Processor cable (cat. no. 1771-CN,-CO,-CR)
User-assembled Data Highway cable
Figure 2.1 and Figure 2.2 show the connections made with these cables.
You can order Data Highway/Processor cables in 3 lengths:
1.5 ft. (cat. no. 1771-CN)
3.5 ft. (cat. no. 1771-CO)
10.5 ft. (cat. no. 1771-CR)
The 2 shorter cables are intended for connection to a Mini-PLC-2,
Mini-PLC-2/05, or Mini-PLC-2/15 module. A 10.5 ft. cable is used with
PLC-2, PLC-2/20 or PLC-2/30 processors.
You must assemble and install your own Data Highway cable, dropline
and trunkline segments. A separate publication, Data Highway Cable,
Assembly and Installation Manual, publication 1770-6.2.1, gives
information on layout, make-up, and installation of the cable.
In addition to the components shown in Figure 2.1 and Figure 2.2, you
can install your own equipment at or near the Data Highway station. The
chief purpose of additional components is to provide diagnostic or
monitoring information. Such devices as alarms, displays and indicators
can be controlled from output modules of the programmable controller to
provide operating or fault information to plant personnel.
Minimally, a single indicator should be installed to alert your personnel to
a REMOTE or LOCAL FAULT condition that prevents normal message
transfer. The significance of REMOTE/LOCAL FAULT bits, and the
recommended programming to monitor these bits, is described in chapter
7.
This chapter told you the:
Components of an A-B Data Highway system
Role of a 1771-KA2, its connectors, switches, and indicators
Specs of a 1771-KA2
Where a KA2 resides and how it is connected to its station
Optional equipment possibilities at a Data Highway station
In chapter 3 you will read about KA2 switches and installation.
Cables
Other Optional Equipment
Chapter Summary