Epson RC90 Manual page 240

2. Installation
LED Description
LED state represents the states of the fieldbus module.
NS: Network Status LED
OFF
Green
Green, 1 flash
Green, blinking
Red
Red, 1 flash
Red, 2 flashes
Red, 3 flashes
MS: Module Status LED
OFF
Green
Green, 1 flash
Red
Alternating Red/
Greed
LINK/Activity LED
OFF
Green
Green, flickering
228
LED State Description
Offline
Online (RUN)
Online (STOP)
Blink
Fatal event
Station Name error
IP address error
Configuration error
LED State Description
Not Initialized
Normal Operation
Diagnostic Event(s)
Exception error
Fatal event
Firmware update
LED State Description
No Link
Link
Activity
Comments
No power
No connection with IO Controller
Connection with IO Controller established
IO Controller in RUN state
Connection with IO Controller established
IO Controller in STOP state or IO data bad
IRT synchronization not finished
Used by engineering tools to identify the
node on the network
Major internal error (this indication is
combined with a red module status LED)
Station Name not set
IP address not set
Expected Identification differs from Real
Identification
Comments
No power OR Module in SETUP or
NW_INIT state.
Module has shifted from the NW_INIT
state.
Diagnostic event(s) present
Device in state EXCEPTION.
Major internal error (this indication is
combined with a red net- work status
LED)
Do NOT power off the module. Turning
the module off during this phase could
cause permanent damage.
Comments
No link, no communication present
Ethernet link established, no
communication present
Ethernet link established, communication
present
RC700 / RC90 Option Fieldbus I/O Rev.14