Allen-Bradley 1747-SN User Manual page 42

Using Extended Node Using Extended Node
Capability Capability
Not Using Extended Node Not Using Extended Node
Capability
For New Installations - To ensure a proper earth ground of the cable shield, follow these steps:
1. While the RIO link connector is plugged into the scanner and lines 1 and 2 are connected, strip the cable back to expose enough shield drain wire to reach
a chassis mounting bracket.
2. Attach the ring terminal lug (supplied) to the end of the shield drain wire.
3. Attach the ring terminal lug to the SLC chassis mounting bracket. Note that for new installations the middle (shield) terminal is not used when connecting to
the scanner.
Important:
The RIO cable shield must be grounded at the scanner end only.
For Series A Scanner Retrofits - To eliminate the need to strip the cable back, follow these steps:
1. Attach the shield wire and a short piece of #20 AWG wire (dotted line) to the shield lug of the RIO Link Connector.
2. Attach the other end of the #20 AWG wire to the ring terminal lug.
3. Attach the ring terminal lug to a chassis mounting bracket.
Important:
The RIO cable shield must be grounded at the scanner end only.
Ensure that the unshielded portion of the link communication wire (blue and clear) is as short as possible.
Baud Rate
57.6K baud
115.2K baud
230.4K baud
57.6K baud
115.2K baud
230.4K baud
RIO Link
Connector
LINE 1 _______
SHIELD _____
LINE 2 _______
Chassis
Mounting
Bracket
Installation and Wiring
Maximum Cable Distance
(Belden 9463)
3048 meters (10,000 feet)
1524 meters (5,000 feet)
762 meters (2,500 feet)
3048 meters (10,000 feet)
1524 meters (5,000 feet)
762 meters (2,500 feet)
RIO Scanner
RIO Link
Connector
Line 1 – Blue
Shield – Shield
Line 2 – Clear
Shield Drain Wire
Ring Lug
For New Installations
Using Series B
Scanners
3–5
Resistor Size
82 82 1/2 Watt 1/2 Watt
Brown-Green-Brown-Gold Brown Green Brown Gold
150 150 1/2 Watt 1/2 Watt
Brown-Green-Brown-Gold
82 1/2 Watt
Gray-Red-Black-Gold
Terminating
Resistor Last Physical
Device End
Terminating
Resistor
Scanner End
Shield Drain Wire
For Series A
Scanner
Retrofits
Publication 1747 6.6 - July 1996