Siemens SIMATIC ET 200SP HA Equipment Manual page 65

Note
Note
(307
With incoming diagnostics message "Overload or internal sensor supply short-circuit to ground",
a wire break (incoming/going) may also be signaled. The wire break signal (6
in this case.
Supply voltage outside the nominal range
If the supply voltage P is outside the specified value range, the DIAG LED flashes and the module
is passivated.
After subsequent voltage recovery (level must be within the specified value range for at least 1
minute (see section "Technical specifications (Page 67)": Voltages, currents, potentials), the
DIAG LED stops flashing. The module remains passivated and waits for user acknowledgment.
Behavior in case of cross circuit/short circuit to the sensor supply
With configured internal sensor supply and deactivated short-circuit test, M short-circuits to the
sensor supplies are detected. Channels for which the relevant sensor supply is configured will be
passivated.
Short-circuits from ground to the sensor supply are detected for a configured internal sensor
supply and activated short-circuit test. Channels for which the relevant sensor supply is
configured will be passivated.
Special features for fault detection
The detection of some faults (e.g. short-circuits, discrepancy errors) depends on the application,
the wiring, the configuration of the short-circuit test and the configuration of the sensor supply.
You can find the corresponding tables for fault detection for the applications in section
"Applications of the F-I/O module (Page 39)".
General information on diagnostics
You can find additional information on diagnostics that pertains to all F-modules (e.g. readout
of diagnostic functions, passivation of channels) in the programming and operating manual
"SIMATIC Industrial Software S7 F/FH Systems - Configuring and Programming
support.industry.siemens.com/cs/ww/en/view/109773062)".
F-DI 16x24VDC HA
Equipment Manual, 08/2021, A5E45647528-AD
for the messages "Overload or internal sensor supply short-circuit to ground"
*1)
) and "Wire break" (6
H H
)
Displays, alarms and messages
7.3 Diagnostic messages
) can be ignored
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65