V01.00 | 2019/12
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11 Troubleshooting
If the device does not work as expected, proceed as follows:
Exclude environmental disturbances.
Check the connections of the device for errors.
Check device for parameterization errors.
If the malfunction persists, the device is faulty. In this case, decommission the device and re-
place it with a new device of the same type.
11.1 Eliminate parameterization errors
DXP channels
Error Possible causes: Remedy
Digital output does not
switch
The IO-Link port was not parameterized as
a DX channel.
Set the channel to DX via the Operat-
ing mode parameter.
IO-Link channels
Diagnostics Possible causes: Remedy
Data storage error IO-Link device according to IO-Link V1.0
connected IO-Link devices in accordance
with IO-Link specification V1.0 do not sup-
port data storage.
Set parameter Data storage mode to
deactivated, clear.
a Data storage remain deactivated.
The data storage buffer contains data of
another device.
Set parameter Data storage mode to
deactivated, clear.
Re-activate the data storage if neces-
sary.
Wrong or missing device The connected device does not match the
configured one (wrong vendor-ID, device-
ID etc.)
Adapt the parameterization of the
IO-Link port (Vendor ID, Device ID,
etc.) at the master.
The parameterization can be done
manually via DTM, the web server or
similar or by teaching the master us-
ing the IO-Link-Call (port 0 function,
sub index 67: Teach mode).
Process input data invalid
Certain IO-Link devices send a process in-
put data invalid diagnosis if the process
value cannot be measured.
Deactivate the sending of the dia-
gnosis for the IO-Link port with the
parameter Process input data in-
valid Ò No diagnostic generated.
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