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

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Tx and Rx LEDs
case bus LEDs
meaning
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 is
and Tx is OFF
receiving data from other controllers.
The EAGLEHAWK controller is attempting to
4
Tx is flashing
establish communication on RS485-1, but
and Rx is OFF
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.
EAGLEHAWK CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
Table 25. EAGLEHAWK controller bus LEDs Tx and Rx
remedy
No action necessary
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 (Kbaud) 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.
29
EN1Z-1005GE51 R0216

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