Rockwell Automation 1747-SN Remote I/O Scanner - Manual (Page 39)

Publication 1747-UM013B-EN-P - January 2005
Installation and Wiring 3-5
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 value of the
resistor depends on the baud rate and extended node capability, as
shown in the table that follows.
IMPORTANT
To use extended node, all devices on the RIO link
must support it. Refer to each device’s user manual.
Baud Rate Maximum Cable
Distance (Belden 9463) Resistor Size
Using Extended
Node Capability 57.6K baud 3048 meters (10,000 feet) 82 ohm 1/2 Watt
Brown - Green -
Brown - Gold
115.2K baud 1524 meters (5000 feet)
230.4K baud 762 meters (2500 feet)
Not Using Extended
Node Capability 57.6K baud 3048 meters (10,000 feet) 150 ohm 1/2 Watt
Brown - Green -
Brown - Gold
115.2K baud 1524 meters (5000 feet)
230.4K baud 762 meters (2500 feet) 82 ohm 1/2 Watt Gray
- Red - Black - Gold