Hardware configuration 13
How to configure Allen-Bradley modules
This section provides information on how to configure Allen-Bradley modules.
1770-KF2 (Series B)
This module provides an interface from an RS-232C or RS-422A device to the
Data Highway or the Data Highway (DH+). On the bottom of the module, there
are eight switch assemblies. Each of the switch assemblies may contain up to five
switches.
For more information on the 1770-KF2B, please refer to DH/DH+ Asynchronous
RS-232 or RS-422 Interface Module User Manual, publication 1770-6.5.13.
IMPORTANT
The 1770-KF2B reads the status of the communications option
switches only at power-up. Make the selections with the power
OFF.
SW-7
Communication
Link Selection
O
F
F
O
N
12
O
F
F
O
N
12
SW-8
RS-232-C/RS-422-A
Selection
SW-1
Asynchronous Link
Features
SW-2, SW-3, SW-4
Station Address
SW-5
Network
Communication
Rate
SW-6
Asynchronous Link
Communication
Rate
O
F
F
O
N
1234
O
F
F
O
N
12
O
F
F
O
N
51234
O
F
F
O
N
12
O
F
F
O
N
123
O
F
F
O
N
123
ON
Side View
ON
OFF
OFF
ON
OFF
O
F
F
O
N
12
Front View
A-B
ALLEN-BRADLEY
DATA-HIGHWAY
COMMUNICATION INTERFACE
PWR
ACTV CPUXMTG RCVG RDY
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