Terminate the link – Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual User Manual
Page 30
Chapter 2
Installation
2-8
Figure 2.2
Remote I/O Terminal Connectors
To connect remote I/O cable, do the following:
1. Run the cable (1770-CD) from the processor to each remote I/O
adapter module or processor in the remote I/O system.
2. Connect the signal conductor with blue insulation to the 3-pin
connector terminal labeled 1 on the processor and to each remote
I/O adapter module (or PLC-5 adapter) in the remote I/O system.
3. Connect the signal conductor with clear insulation to the 3-pin
connector terminal labeled 2.
4. Connect the shield drain wire to the 3-pin terminal labeled SH.
5. Tie wrap the remote I/O network cable to the chassis to relieve strain
on the cable.
Processor channel must be configured for remote I/O communication.
PLC-5/V40B
PLC-5/V40L
1771-ASB Remote
I/O Adapter Module
Remote I/O
Terminal
Connectors
Blue
Shield
Clear
Remote I/O
Terminal
Connectors
Blue
Shield
Clear
1 Line 1
2 Shield
3 Line 2
4 Line 1
5 Shield
6 Line 2
7 No Connection
8 No Connection
9 No Connection
10 No Connection
11 In
12 Ret
Cable
Reset
19539
Blue
Shield
Clear
Chan 0
Chan 2
Chan 1
Cable for
daisy-chain
configuration
Terminate the Link
For proper operation, terminate both ends of a remote I/O link by using the
external resistors shipped with the programmable controller. Use either a
150
W or 82W terminator.
If your remote I/O link:
Use this resistor rating:
The maximum number of
physical devices you
can connect on the link
The maximum number of
racks you can scan on
the link
operates at 230.4 kbps
82
W
32
16
operates at 57.6 kbps or 115.2 kbps and no
devices listed in Table 2.A are on the link