F2. status indication and responsive measures, F2-1, Nyfgw510 operational status indication – Yokogawa YFGW510 User Manual
Page 77: Ncommunication status indication, N[lan] led

F2-1
IM 01W02E01-01EN
F2. Status Indication and Responsive
Measures
There are six status indicator LEDs installed on the front of YFGW510: [ACT], [LAN], [ISA],
[WLAN-C1], [WLAN-C2] and [WLAN-AP].
n
YFGW510 operational status indication
The following is the LED that indicates the YFGW510 operational status.
LED
Power off Starting up Connect-
ing
Normal
Mainte-
nance
Abnormal
ACT
OFF
Orange
Orange
blink
Green
Red blink
Red
The LED blinks red when the device mode is changed to Edit mode via the infrared adapter using
the setup tool to configure YFGW510.
If the LED lights red, check the field wireless backbone network cable connection and commu-
nication devices such as the Layer 2 switch, etc., and fix any abnormalities. If there is no abnor-
mality found in cable connection, check the backbone router status information described in F1.
Status Information and device information by the Monitor. Any abnormality found may indicate
the breakdown of YFGW510. For details of the YFGW510 device replacement method, see the
YFGW410 User’s Manual (IM 01W02D01-01EN).
n
Communication status indication
The following are the LEDs that indicate communication status.
LED
Power off Starting
up
Signal
search
Link
down
Link up
Commu-
nicating
Mainte-
nance
Abnor-
mal
LAN
OFF
OFF
N/A
OFF
Green
Green
blink
OFF
Red
ISA
OFF
OFF
N/A
N/A
Green
Green
blink
OFF
Red
WLAN-C1
OFF
OFF
Orange
blink
OFF
Green
blink
Green
OFF
Red
WLAN-C2
OFF
OFF
Orange
blink
OFF
Green
blink
Green
OFF
Red
WLAN-AP
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n
[LAN] LED
If the LED turns off during operation, it may indicate that communication between YFGW510 and
the YFGW410 field wireless backbone network has been terminated. Investigate the commu-
nication cable connection and the status of communication devices such as the Layer 2 switch,
etc., and re-establish communication.
If the LED lights red, it may indicate the breakdown of the communication function of YFGW510.
Replace the main body or consult with Yokogawa Electric Corporation.