Siemens SIMATIC ET 200AL, System Manual

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Interrupts/diagnostic messages/diagnostics
6.5 Fault types, causes, and corrective measures
Digital I/O module F-DI 4+F-DQ 2x24VDC/2A, 4xM12 (6ES7146-5FF00-0BA0)
Equipment Manual, V1.0, 05/2021, A5E51082342-AA
75
Event ID Diagnostic
message
F-DI 4/F-DQ 2
Fail-Safe
module
Description Possible causes Corrective measures
1
16x0306 Internal sensor
supply short-
circuit to P
F-DI 4/F-DQ 2
digital inputs
Module-provided sen-
sor supply voltage
shorted to P
• Sensor supply
shorted to P
• Short-circuit test
duration config-
ured too short
• Failed sensor sup-
ply
• Eliminate the short-
circuit
• Increase short-
circuit test duration
• Replace the fail-
safe module
16x0307 Overload or inter-
nal sensor supply
short-circuit to
ground
F-DI 4/F-DQ 2
digital inputs
Internal sensor supply
voltage shorted to M,
ground, or excessive
load on sensor supply
• Short-circuit
• Excessive load on
sensor supply
• Failed sensor sup-
ply
• Eliminate the short-
circuit
• Reduce load on
sensor supply
• Replace the
fail-safe module
16x030D F-address
memory not ac-
cessible
Module The memory where
the F-address is stored
is not accessible
• eCoding plug is
missing
• eCoding plug is
defective
• Install an eCoding
plug into X40 of
the module
• Replace the defec-
tive eCoding plug
16x030E No valid F-address
available
Module Fail-safe address is not
valid (F-address and
CRC inconsistent)
• eCoding plug has
never been as-
signed a PROFIsafe
address
• eCoding plug is
defective
• Assign the PROFIs-
afe Address
• Replace the eCod-
ing plug
16x0311 Frequency too
high
F-DI 4/F-DQ 2
digital outputs
Switching frequency
exceeded; readback
not in time
Process value from
safety program
changing too rapidly
for module to follow
Change Safety pro-
gram logic to guaran-
tee more time
between output
changes
16x0312 Undertempera-
ture
Module
• Under-temperature
at microcontrollers
• Under-temperature
at I/O
Shutdown due to
violation of low
temperature limit
value in the module
case
• Check the ambient
temperature
• Once the fault
has been eliminat-
ed, switch the
power off and on