DOC-0017-10-EN: AC20 Series PROFINET IO Option
14 (47)
DOC-0017-10-EN-B 04.04.2023
Network Status (NS) LED
LED Status
Description
Comments
OFF
Offline
•
No Power
•
No Connection with IO Controller
GREEN (Solid)
Online (RUN)
•
Connection with IO Controller Established
•
IO Controller in RUN state
GREEN, 1 Flash
Online (STOP)
•
Connection with IO Controller Established
•
IO Controller in STOP state or IO Bad Data
•
IRT Synchronization Not Finished
GREEN, Blinking
Blink
•
Used by Engineering Tools to Identify the Ethernet
Node on the Network
RED (Solid)
Fatal Event
•
Major Internal Error (this indication is combined
with a RED Module Status LED)
RED, 1 Flash
Station Name Error
•
Station Name Not Set
RED, 2 Flashes
IP-Address Error
•
IP-Address Not Set
RED, 3 Flashes
Configuration Error
•
Expected Identification Differs from Real
Identification
Module Status (MS) LED
LED Status
Description
Comments
Off
Not Initialized
•
No power or Module in SETUP or NW_INIT state.
Green
Normal Operation
•
Module has shifted from the NW_INIT state
Green, 1 flash
Diagnostic Event(s)
•
Diagnostic event(s) present
Red
Exception error
•
Device in state Exception.
Alternating
RED/GREEN
Fatal event
•
Major internal error (this indication is combined
with a red network status LED)
Link/Activity (L/A) LED
LED Status
Description
Comments
Off
No Link
•
No Link, No Communication present.
Green (Solid)
Link
•
Ethernet Link Established, No Communication
present
Green, Flickering
Network Activity
•
Ethernet Link Established, Communication
Present