Rockwell Automation 1779-KP3R DATA HIGHWAY II - Manual (Page 22)

Installing the 1779-KP3
Communication Interface
Chapter 2
2Ć6
Use the three thumbwheel switches at the bottom of the front panel to set
the Data Highway II node address for the KP3. You can use from 1 to
376 octal. For example, to select node address 123, set the thumbwheels
as shown in figure 2.6.
Figure 2.6
Example Thumbwheel Switch Setting for the Node Address
1
К
К
К
К К
К
К
К
К
2
КК
КК
КК
КК
КК
3
L
I
N
K
A
D
D
R
E
S
S
Most significant digit
Least significant digit
Once you have set the switches on the host board and the thumbwheels on
the front panel, you are ready to install the KP3 module into the PLC–3
chassis. The KP3 is a single–slot module that you can place next to any
other PLC–3 module in the chassis.
Important: We assume you have a Data Highway II network up and
running, and a drop line cable ready to attach to the module. If you need
cabling information, refer to the Allen–Bradley Data Highway/Data
Highway Plus/Data Highway II/DH–485 Cable Installation Manual
(publication 1770–6.2.2).
Follow the procedure below to install your KP3 module into your
Allen–Bradley PLC–3 chassis.
1. Remove power from the PLC–3 chassis.
2. Lift the interlock bar that is inside the chassis and secure it to the
brackets that are mounted at the top of the chassis (your chassis may
have a hinged interlock bar attached to the top that flips up away
from the front).
Install the KP3 Module