Manual

138
DXi User Manual
Appendix E: Hardwired Communication Troubleshooting
DXi COMM BOARD: The DXi-COM-BOARD is seen below in figures 1 and
2. The board has LED indications for 5V and 12V power, and data traffic via the
R (Receive), T (Transmit), and D (Direction) LED's. The board has designated
inputs for communication coming "IN" from a upstream controller and "OUT" to a
downstream controller. Each "IN" and "OUT" port has a polarity indication, "+" or
"-" as well.
Normal Operating Behavior:
Indication LEDs
The indication LED's can be used to quickly diagnose normal operating behavior
of a hardwired connected DXi controller group. The 12V and 5V indication
LED's should have constant solid illumination. The R, T, and D LED's will pulse
illumination in a semi constant repeated pattern. Under normal operating conditions
this sequence will repeat approx. every 1-2 seconds.
The T or R LED should pulse rapidly, if they stay solidly illuminated for longer than
approx. 5 seconds, this is not typical behavior and the connections, field wiring and/
or hardware should be inspected.
The D LED should pulse rapidly, like the T or R LED, but will hold it's illuminated
state slightly longer. If the D LED stays solidly illuminated for longer than approx.
5 seconds, this is not typical behavior and the connections, field wiring and/or
hardware should be inspected.
Note: The T, R, or D LEDs will be illuminated for the longest period of time when
Laguna central software is communicating to a controller group.
Alerts
Under normal operating conditions a controller group should not experience HW
communication related alerts. Generation of any of the alerts below in Table 1,
is a sign of a problem, and connections, field wiring and/or hardware should be
inspected.
Alarm Name Laguna
Code
Description Data
Satellite Offline 1112 Satellite lost
communication with
submaster
- Time stamp of the
violation
Satellite Online 1113 Satellite established
communication with
submaster
- Time stamp of the
violation
HW
Communication
Failure
1114 Submaster lost
communication with
satellite
- Satellite(s) address of
communication loss
- Time stamp of the
violation