LION System Troubleshooting
41 EN1Z-0921GE51 R0315
LONWORKS Service LED
Fig. 57 Flashing pattern of the LONWORKS service LED
The L
ONWORKS service LED of the controller module displays the following flashing patterns indicating possible failure modes:
case When can it occur? Meaning Remedy
1 Anytime
Node is configured and running normally
No action necessary
2 Power up of controller
Bad node hardware
► Replace hardware
3 Power up of controller
Bad node hardware
► Replace hardware
4 Power up / reset
Node lacks application.
May be caused by neuron chip firmware when
a mismatch occurs on application checksum
► Using EXCELON, set module to
“configured online”
► If the problem persists, the MIP
software on LW interface has been
erased due to wrong setting
performed using ECHELON tool:
Replace hardware
5 Anytime
Watchdog timer resets occurring.
Possible corrupt EEPROM and bootstrap
mode
► Download firmware
6 Anytime
Node is unconfigured but has an application
► Proceed with commissioning
Table 44 CLLIONLC01 LONWORKS service LED
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