Hardware Features - Allen-Bradley 1747-SN Installation Instructions Manual

4 Remote I/O Scanner

Hardware Features

The figure below shows the scanner's features. RIO Link Connector, Status LED,
and DIP Switch information follows.
RIO Link Connector
This 3-pin male connector connects the scanner to the RIO link. The Allen-Bradley
replacement part number is 1746-RT29.
Status LEDs
The scanner has two LEDs, FAULT and COMM, which indicate its operating status.
• FAULT LED - indicates the scanner's overall status. The red FAULT LED is off
whenever the scanner is configured and operating properly.
• COMM LED - allows you to monitor communication with all configured
devices. This LED is green once the scanner is in the Run mode. It is red if a
hardware fault is detected. The COMM LED status information is valid only
when the FAULT LED is off.
Publication 1747-IN060B-EN-P - June 2001
B
Dip Switch
SCANNER
COMM FAULT
SW1
O
1 2
N
1 2 KBAUD
ON ON
ON OFF
OFF ON
OFF OFF
CONNECT ONE END OF
CABLE SHIELD TO CHASSIS
MOUNTING BOLT. REFER TO
USERS MANUAL.
Line 1
Shield
Line 2
1747-SN
Cable Tie Slots
Status LEDs
57.6
115.2
230.4
230.4
RIO Link Connector