Rio Link Wiring - Allen-Bradley 1747-SN Installation Instructions Manual

8 Remote I/O Scanner
4. Attach the RIO link cable to the connector on the front of the module,
behind the door. Ground the cable's shield wire to a chassis mounting
bracket. Refer to the RIO link wiring illustration on page 9.
5. Insert the cable tie in the slots.
6. Route the cable down and away from module, securing it with the cable tie.
7. Cover all unused slots with the Card Slot Filler, Catalog Number 1746-N2.
Removal
1. Disconnect power.
2. Remove all cabling.
3. Press the releases at the top and bottom of the module and slide the module
out of the chassis slot.
4. Cover all unused slots with the Card Slot Filler, Catalog Number 1746-N2.

RIO Link Wiring

The scanner is connected to other devices on the RIO link in a daisy chain (serial)
configuration. There are no restrictions governing the space between each device,
provided the maximum cable distance (Belden™ 9463) is not exceeded. A 1/2 watt
terminating resistor (included with the module) must be attached across line 1 and
line 2 of the connectors at each end (scanner and last physical device) of the RIO
link. The size of the resistor depends on the baud rate and extended node
capability, as shown in the table below.
Note: To use extended node, all devices on the RIO link must support it. Refer to
each device's user manual.
Using Extended
Node Capability
Not Using
Extended Node
Capability
Publication 1747-IN060B-EN-P - June 2001
Baud Rate
57.6K baud
115.2K baud
230.4K baud
57.6K baud
115.2K baud
230.4K baud
Max. Cable Distance
(Belden 9463)
3048 m (10,000 ft.)
1524 m (5,000 ft.)
762 m (2,500 ft.)
3048 m (10,000 ft.)
1524 m (5,000 ft.)
762 m (2,500 ft.)
Resistor Size
82 Ω 1/2 Watt
Gray-Red-Black-Gold
150 Ω 1/2 Watt
Brown-Green-Brown-Gold
82 Ω 1/2 Watt
Gray-Red-Black-Gold