Honeywell CIPer 50 - Tx and Rx Leds; Panel Bus I;O Module Troubleshooting

CIPer
TM
MODEL 50 CONTROLLER – INSTALLATION AND COMMISSIONING INSTRUCTIONS
69
31-00233-02
Tx and Rx LEDs
Table 32. CIPer Model 50 controller bus LEDs Tx and Rx
Case
Bus LEDs
Meaning
Remedy
1
Both Tx and Rx are
flashing
Normal operation; RS485-1 is
functioning properly.
No action necessary.
In case of communication problems, check
settings (communication rate, parity, etc.).
2
Both Tx and Rx are
OFF
No communication on
RS485-1.
Switch ON communication on RS485-1.
L1 should then flash. Further handling like
case 4 (below).
3
Rx is flashing and Tx is
OFF
Communication on RS485-1
has been switched OFF, but
the CIPer Model 50 is
receiving data from other
controllers.
Switch ON communication on RS485-1. If
this proves unsuccessful, the hardware
may be defective.
4
Tx is flashing and Rx is
OFF
The CIPer Model 50 controller
is attempting to establish
communication on RS485-1,
but there is no answer.
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.
Panel Bus I/O Module Troubleshooting
Please refer to HONEYWELL EXCEL 5000 OPEN SYSTEM - Installation & Commissioning Instructions
(EN1B-0375GE51) for more information about Panel Bus I/O module troubleshooting.
Tx Rx