Panel Bus I/O Module Troubleshooting - Honeywell CENTRA LINE EAGLEHAWK NX Installation & Commissioning Instructions

EAGLEHAWK NX CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
L2 LED
case bus LED meaning
L2
Platform has started / is reachable.
1
ON con-
tinuously after
power-up
Station is not running.
2
OFF
Station has started.
3 Flashing
Tx and Rx LEDs
case bus LEDs meaning
Tx Rx
Normal operation; RS485-1 is functioning
1
Both Tx and Rx
properly.
are flashing
No communication on RS485-1.
2 Both Tx and Rx
are OFF
Communication on RS485-1 has been
3 Rx is flashing
switched OFF, but the EAGLEHAWK NX is
and Tx is OFF
receiving data from other controllers.
The EAGLEHAWK NX controller is
4
Tx is flashing
attempting to establish communication on
and Rx is OFF
RS485-1, but there is no answer.

Panel Bus I/O Module Troubleshooting

Please refer to CentraLine I/O Modules - Installation & Commissioning Instructions (EN1Z-0973GE51) for more information
about Panel Bus I/O module troubleshooting.
EN1Z-1039GE51 R1218
Table 31. EAGLEHAWK NX controller bus L2 LED
Table 32. EAGLEHAWK NX controller bus LEDs Tx and Rx
remedy
No action necessary.
Start station (enable auto start).
►
Contact TAC.
►
No action necessary.
remedy
No action necessary.
In case of communication problems, check settings
►
(communication rate, parity, etc.).
Switch ON communication on RS485-1. L1 should
►
then flash. Further handling like case 4 (below).
Switch ON communication on RS485-1. If this
►
proves unsuccessful, the hardware may be
defective.
The communication rate (kbps) on RS485-1 has not
►
been correctly set; other controllers on the bus may
have been incorrectly assigned the same device
number; wiring problem or hardware defect.
50