Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 51)

Publication 1747-UM010B-EN-P - September 2003
Installation and Wiring 3-9
RS-232/RS-485 Network Wiring
The 1747-BSN module supports RS-232 or RS-485 communications for
the primary processor only. The RS-232 or RS-485 network can use the
same BSN module as the DH+ or RIO network.
Figure 3.4 RS-232/485 System
Status LEDs The table below describes the six LEDs located on the module’s front
panel. To ensure that they are operating correctly, all LEDs are
illuminated during power-up.
Processor
Processor
1747-BSN
1747-BSN
DH485/DF1/ASCII
RS-232/-485 (A) to Link
RS-232/-485 (B) to Link
RS-232/-485 (COM) to Link
RS-232/-485 (A) to CPU
RS-232/-485 (B) to CPU
RS-232/-485 (COM) to CPU
Terminal Block Wiring
LED Definition Status & Color Indication
PRI Primary Steady Green The module is in the primary mode.
SEC Secondary Steady Amber The module is in the secondary mode.
RIO RIO Communication Steady Green The RIO link is working properly.
Flashing Green A remote device is not configured or connected correctly, or is faulted.
Flashing Red The RIO link has a fault. The scanner is connected incorrectly, or all devices are
configured improperly, have no power, or are faulted.
Steady Red There is a configuration error.
Off The communication channel is not configured as RIO.
ERR Back-up Module Error Flashing Red The module is not ready for switchover.
Off The module is ready for switchover.
HSSL High-Speed Serial Link
Communication Flashing Green The link is operating with no errors.
Off A communications error has been detected on the HSSL.
FLT Fault Steady Red A hardware fault has occurred.
Flashing Red The module is not configured properly.