Installation
5
LED 3: Network Status
LED 3 can be set to configuration states 1–3. In
LED
c o n f i g u r a t i o n 1
, L E D 3 f l a s h e s t h e n u m b e r o f
e s t a b l i s h e d c o n n e c t i o n s t o t h e m o d u l e ;
L E D
configuration 2
deactivates LED 3.
LED 4: Activity
LED 4 can be set to configuration state 1 or 2. In
LED
configuration 1
, LED 4 flashes green each time a packet
is transmitted or received.
L E D c o n f i g u r a t i o n 2
deactivates LED 4 and provides transmit/receive
indication on LED 1.
Watchdog LED
A s i n g l e b i - c o l o r L E D o n t h e s u r f a c e o f t h e
EtherNet/IP module provides diagnostic information
for debugging the module itself. Table 2-7 lists the
indications provided by the debugging LED.
LED 3 Color/State
Description
Steady off
No power to module or no IP address
assigned
Steady green
At least one EtherNet/IP connection
established
Flashing green
No EtherNet/IP connections
Flashing red
Connection time-out
Steady red
Duplicate IP address detected
Flashing red/green Performing power-on self-test
Table 2-6. LED 3 states, using LED Configuration 3
Status
Description
Off
No power
Red, 4Hz
DPRAM check fault
Red, 2Hz
ASIC and FLASH ROM check fault
Red, 1Hz
RAM check fault
Green, 2Hz
Module not initialized
Green, 1Hz
Module initialized and running
Table 2-7. Debugging LED Indications
