8-3
Checking for Errors and Trouble-
shooting with the Indicators
This section describes how to check for errors with the indicators of the IO-Link I/O Hub and trouble-
shoot the errors.
8-3-1
Status Indicators
Digital I/O Hub
U/IN
PWR
OUT
PWR
IO-Link
Hub status
Cause
Correction
Green
Green
Green
Red
Lit
Lit
Flash-
ing
---
The Hub is operating
normally.
---
---
---
Flash-
ing
IO-Link communica-
tions are not operat-
ing normally.
IO-Link ca-
ble broken
Check the IO-Link cable to see
if it is broken. If the cable is bro-
ken, replace it.
IO-Link I/O
Hub failure
Replace the IO-Link I/O Hub.
IO-Link
Master
Unit failure
Replace the IO-Link Master
Unit.
---
Lit
A following error is
detected.
•
Hardware Error
•
Service Data Error
Non-vola-
tile memo-
ry failure
Cycle the Unit/input power sup-
ply. If cycling the Unit/input pow-
er supply does not clear the er-
ror, replace the Hub.
Not lit
---
Not lit
Not lit
The Unit/input power
is not supplied.
---
Check if the Unit/input power is
supplied. If it is supplied, check
if the power supply voltage is
not below the specification.
---
Not lit
---
---
The output power is
not supplied.
---
Check if the output power is
supplied.
If it is supplied, check the follow-
ing:
•
Pin 2 of the IO-Link Master
Unit port is in SIO (DO) Mode
and ON
If it is supplied, check if the pow-
er supply voltage is not below
the specification.
*1.
For the Digital I/O Variable Hub only
Note
The “---” of the indicator status indicates that the status is unstable.
8 Troubleshooting
8-6
NXR-series IO-Link I/O Hub User’s Manual (W620)
Summary of Contents for NXR Series
Page 6: ...Manual Structure 4 NXR series IO Link I O Hub User s Manual W620 ...
Page 26: ...Revision History 24 NXR series IO Link I O Hub User s Manual W620 ...
Page 34: ...1 Features and System Configuration 1 8 NXR series IO Link I O Hub User s Manual W620 ...
Page 90: ...6 Process Data and Service Data 6 12 NXR series IO Link I O Hub User s Manual W620 ...
Page 108: ...7 Functions of IO Link I O Hubs 7 18 NXR series IO Link I O Hub User s Manual W620 ...
Page 131: ...I Index I 1 NXR series IO Link I O Hub User s Manual W620 I ...
Page 133: ......