Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 14)

Installation
Chapter 2
2Ć2
Figure 2.1
Front View of 1775-KA Module
10003-I
XMTG
RCVG
RDY
ERR
DIS
Self–Test Indicators
Thumbwheel Switch
RS–232–C port Indicators
Data Highway Port Indicators
RS–232–C Port
Data Highway Port
COMMUNICATION
ADAPTER
PASS
FAIL
SELF
TEST
KA
DATA
HWY
XMTG
RCVG
ERR
DIS
NO
MODEM
INTERFACE
DATA
HWY
If there is only one 1775–KA module in the PLC–3 chassis, set its
thumbwheel switch to the number 1. If there are multiple 1775–KA
modules in the same PLC–3 chassis, set their thumbwheel switches to
consecutive numbers, starting with the number 1. You may write the
selected number in the space provided beside the thumbwheel switch.