Siemens S7-300 Installation And Operating Manual page 259

Causes of the problem and corrective measures
The table below shows the possible causes of the problem and associated corrective
measures for the individual diagnostic messages of the SM 336; F-AI 6 x 0/4 ... 20 mA
HART.
Table 9- 25 Diagnostic messages and associated corrective measures for SM 336; F-AI 6 x 0/4 ... 20 mA HART
Diagnostic message
No external auxiliary voltage
Parameter assignment
missing/incorrect parameters in the
module
Time monitoring activated
(watchdog)
Internal supply voltage of the
module failed
Processor failure
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
Possible causes of the problem
Module supply voltage L+ missing
Internal fuse defect
Faulty parameters transferred to module
F_destination_address incorrect
CRC signature error during
communication between the F-CPU and
the module occurred, e.g., due to
electromagnetic interference in excess of
limits or sign-of-life monitoring error
Assigned monitoring time exceeded
Startup of the fail-safe signal module
Excessive electromagnetic interference
at times
Firmware update cancelation due to error If the error has gone out, repeat the
Defective module
Defective module
Excessive electromagnetic interference
at times
Electromagnetic interference has
exceeded limits
Defective module
Ambient temperature too high
Switching rate exceeded
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Corrective measures
Connect supply voltage L+
Module must be sent in.
Assign new module parameters
Check the address switch (DIP switch)
Eliminate the interference
Check the monitoring time parameters
—
Eliminate the interference, and
Switch the supply voltage of the F-

CPU/IM OFF/ON,
Remove/insert F-SM, or

Switch external auxiliary voltage of F-

SM OFF/ON
firmware update.
Replace the module
Replace the module
Eliminate the interference, and
Switch the supply voltage of the F-

CPU/IM OFF/ON,
Remove/insert F-SM, or

Switch external auxiliary voltage of F-

SM OFF/ON
Eliminate the interference, and
Switch the supply voltage of the F-

CPU/IM OFF/ON,
Remove/insert F-SM, or

Switch external auxiliary voltage of F-

SM OFF/ON
Replace the module
Check installation conditions, and
Switch the supply voltage of the F-

CPU/IM OFF/ON,
Remove/insert F-SM, or

Switch external auxiliary voltage of F-

SM OFF/ON
Reduce switching rate
Analog modules
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