Rockwell Automation 5000,D50006.2.10 PI INSTALLATION MANUAL - Manual (Page 120)

Chapter 9
Connecting the I/O Link
9-7
Figure 9.5 shows I/O link connections to a 1771-AM1, -AM2 chassis both
as a middle device and as an end device on a link. The blue-insulation
conductor connects to the top terminal. The clear-insulation conductor
connects to the bottom terminal. At each 1771-AM1, -AM2, connect the
shield drain wire of each cable segment to give the shield continuity.
However, never ground the shield at a 1771-AM1, -AM2. At a
1771-AM1, -AM2 connected as an end device on a link, connect a
150-Ohm 1/4-Watt termination resistor across the signal lines.
Figure 9.5
Connections to a 1771ĆAM1, ĆAM2 Adapter/Chassis
1771ĆAM1, ĆAM2
adapter/chassis
1771ĆAM1, ĆAM2
adapter/chassis
Blue
Shield
Clear Blue
Shield
Clear Blue
Shield
Clear
To
scanner 150 Ω
16511
Figure 9.6 shows I/O link connections to a 1785 PLC-5 controller both as a
middle device and as an end device on a link. Connection is to the remote
I/O terminals. The blue-insulation conductor connects to the line-1
terminal. The clear-insulation conductor connects to the line 2 terminal.
At each 1785 PLC-5 controller, connect the shield drain wire of each cable
segment to give the shield continuity. However, never ground the shield at
a PLC-5 controller. At a 1785 PLC-5 controller connected as a middle
device on a link, set switch 1 of switch assembly SW3 to the up position to
disconnect the internal termination resistor. At a 1785 PLC-5 controller
connected as an end device on a link, set switch 1 of switch assembly SW3
to the down position to connect the internal termination resistor
(Figure 9.6).
Figure 9.6
Connections to 1785 PLCĆ5 Controller
1
SH
2
1
SH
2
Blue
Shield
Clear To
scanner
Blue
Shield
Clear Blue
Shield
Clear
When connected as a middle device, set
switch 1 of SW3 to the UP position to
disconnect the internal termination resistor.
When connected as an end device, set
switch 1 of SW3 to the DOWN position to
connect the internal termination resistor.
16510
1785 PLCĆ5 controller 1785 PLCĆ5 controller
Connecting to a 1771ĆAM1,
ĆAM2 I/O Chassis with Integral
Power Supply and Adapter
Connecting to a 1785 PLCĆ5
Controller