Allen-Bradley 1771-KRF/B User Manual page 19

Table 2.C
1771 KRF Configurations for PLC 5, PLC 3, and PLC 2 Programmable Controllers
Use these devices
1771 KRF and built in remote I/O port of
the PLC 5
1771 KRF and 1771 ASB adapter
1771 KRF and 1772 SD2 scanner
1771 KRF and 1775 S5 scanner
Chapter 2
Guidelines for Connecting the 1771 KRF
To connect these devices to the
remote I/O broadband link
PLC 5
I/O chassis
PLC 2
PLC 3
2 9