Analog modules
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Fail-safe signal modules
258 Installation and Operating Manual, 01/2010, A5E00085586-10
Possible diagnostic messages
The following table provides an overview of the diagnostic messages for SM 336;
F-AI 6 x 0/4 ... 20 mA HART.
Diagnostic messages are assigned either to a channel or to the entire module. Some
diagnostic messages occur only in certain applications.
Table 9- 24 Diagnostic messages of SM 336; F-AI 6 x 0/4 ... 20 mA HART
Diagnostic message Signaled in the
application
Effective
range of
diagnostics
Assigna
ble
No external auxiliary voltage 3 – 9 Module No
Parameter assignment missing 3 – 9 Module No
Incorrect module parameters 3 – 9 Module No
Time monitoring activated 3 – 9 Module No
Internal supply voltage of the module failed 3 – 9 Module No
Processor failure 3 – 9 Module No
EPROM error 3 – 9 Module No
Communication error 3 – 9 Module No
RAM error 3 – 9 Module No
ADC/DAC error 3 – 9 Module No
Discrepancy error 5 – 6 Channel Yes
Short circuit of sensor supply to L+ * 3 – 9 Channel No
Short circuit to M (test occurs cyclically) 3 – 9 Channel No
Wire break ** 3 – 9 Channel Yes
Value is above the overrange 3 – 9 Channel No
Value is below the underrange *** 3 – 9 Channel No
HART: Primary variable outside the limits 3 – 9 Channel Yes
HART: Non-primary variable outside the limits 3 – 9 Channel Yes
HART: Analog output current saturated 3 – 9 Channel Yes
HART: Analog output current specified 3 – 9 Channel Yes
HART: Further status information available 3 – 9 Channel Yes
HART: Configuration has changed 3 – 9 Channel Yes
Malfunction of HART device 3 – 9 Channel Yes
HART parameter assignment error 3 – 9 Channel No
HART communication error 3 – 9 Channel No
* is detected only during startup of the module
** Wire break can be signaled for 0 to 20 mA and for 4 to 20 mA if "wire break diagnostics" is
configured.
*** Underrange can be signaled only with 4 to 20 mA and wire break diagnostics deselected.
See also chapter " HART for safety-oriented applications (Page 283) "
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