Operating
Software diagnostic messages
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Bit Meaning
IO-Link master/device diagnostics
PDINV Evaluating Process Input Data
The IO-Link master or the IO-Link device report invalid process input data. The con-
nected device is not in status "operate", which means, it is not ready for operation.
Possible sources:
n The connected device does not match the configured one, additional diagnostic
message Wrong or missing device.
n Diagnostic message Process input data invalid because the process value can
not be measured (depends on the IO-Link device).
IO-Link device diagnostics
The IO-Link device diagnostics depend on the IO-Link device used. For more de-
tailed information on the diagnoses, please refer to the documentation for the IO-
Link device.
EVT1 Maintenance events
A Maintenance Event in accordance with the IO-Link specification occurred, main-
tenance necessary.
EVT2 Out-of-specification events
An Out-of-Specification Event in accordance with the IO-Link specification occurred.
GENERR Common error
The device sends an error (device status 4, in accordance with IO-Link specification),
which is not clearly specified. Read out the device Event Codes in order to be able to
specify the error more precisely.
HWER Hardware error
General hardware error or device malfunction of the connected device
LLVU Lower limit value underrun
The process value lies under the parameterized measurement range or the chosen
measurement range has been chosen too high.
OLV Overload
The connected device detected an overload.
OTMP Overtemperature
A temperature diagnosis is available on the connected device.
PRMERR Parameterization error
The connected device reports a parameterization error (loss of parameters, no para-
meter initialization, etc.).
ULVE Upper limit value exceeded
The process value exceeds the parameterized measurement range or the chosen
measurement range has been chosen too low.
VLOW Undervoltage
One of the voltages at the connected device is below the defined range.
VHIGH Overvoltage
One of the voltages at the connected device is below the defined range.
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