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○Troubleshooting list (IO-Link communication)
Problem
Problem
No.
IO-Link indicator
light
1
: OFF
(Communication
is not established)
IO-Link indicator
light
2
: Flashing
(Communication
disconnected)
IO-Link indicator
light
: ON
3
(Communication
is being
established)
∗1: When the product is connected to the master with version "V1.0", error Er15 is generated.
Problem
possible causes
Mode display
Communication
lead wire is
connected
incorrectly or
broken
Incorrect
master setting
IO-Link wiring
failure
IO-Link master
and product
version are not
matched
Information of
the master and
device is not
consistent
Communication
error occurs
during the data
storage lock
Data is
-
swapped by
byte
-110-
Investigation method
Correct the led wire
Check the connection of
wiring.
the IO-Link lead wire.
(Replace the lead wire if it
is broken.)
Check the setting
condition of the master
Correct the setting.
such as the port setting.
Correct the lead wire
Check the connection of
connection.
the IO-Link lead wire.
(Replace the led wire if it
is broken.)
Check the IO-Link
Align the master IO-Link
version of the master
version to the device.
and device.
Check that the product
Connect the correct
Number, ID and IODD
product.
file are consistent.
Check the data storage
Release the data storage
lock.
lock.
Assign the program data
Check that the Endian
based on the Endian type
type on the master
of the transmission format
upper level
of the master upper level
communication
communication.
transmission format is
(Refer to page
Big Endian type or Little
Endian type of the upper
Endian type.
level communication.)
5
Troubleshooting
Countermeasures
∗1
90
for the
No.PS※※-OMW0009-C
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