SMC Networks PFMC7501-L Operation Manual page 88

○Troubleshooting list (IO-Link communication)
Problem
Description
IO-Link indicator
light
: OFF
IO-Link indicator
light
: Flashing
IO-Link indicator
light
: Flashing
Data is swapped
by byte.
1: When the product is connected to the master with version "V1.0", error Er15 is generated.
Problem possible
causes
incorrect wiring
-
Power supply
error from the
IO-Link master
Communication is
not established.
IO-Link wiring
failure
IO-Link master
and product
version are not
matched.
Communication
mode is not
transferred to the
Operation mode.
Backup and restore
required during
data storage lock
Program data
- assignment is
incorrect.
Investigation method
Check the connection of the
connector.
Check the power supply
voltage from the IO-Link
master.
Check the connection and
cable condition of the
IO-Link cable.
Check the IO-Link version
of the master and device.
Check the setting of the
data storage access lock
and data storage backup
level of the master.
Check the data storage
lock.
Check that the Endian type
on the master upper level
communication
transmission format is Big
Endian type or Little Endian
type.
-87-
Countermeasures
Correct the cable wiring.
Supply 18 to 30 VDC to the
IO-Link master.
Additionally tighten the
IO-Link cable. (Replace the
cable if it is broken.)
Align the master IO-Link
1
version to the device.
Release the data storage
access lock.
Or deactivate the setting of
the data storage backup
level of the master port.
Release the data storage
lock.
Assign the program data
based on the Endian type of
the transmission format of
the master upper level
communication.
Or set to the master byte
swap setting.
(Refer to page 73 for the
Endian type of the upper
level communication)
No.PF※※-OMY0002