Siemens sitrans PROBE LU User Manual

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Remote Operation : PA
Page 30 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JB02
Acyclic Extended Diagnostics (General Fault Codes)
In addition to the extended diagnostics available by cyclic data exchange (shown above),
further extended diagnostics are available via acyclic communications. This consists of
six bytes. Please see
Appendix G: Asynchronous Communications Data Map on page 61
for the location of the Extended Diagnostics.
Note: Certain fault codes (identified by an asterisk [*] in the table below) will persist
until a manual reset has been performed (see
Reset Fault on page 74).
LCD
display
Cause/symptom Corrective Action Byte Bit
S:0
Device unable to get a mea-
surement within the Fail-
safe timer period. Possible
causes: faulty installation,
material buildup, foaming/
other adverse process con-
ditions, invalid calibration
range.
Ensure installation details are
correct; ensure no material
buildup; adjust process condi-
tions to minimize foam or other
adverse conditions; correct
range calibration. If fault persist,
contact your local Siemens rep-
resentative.
0
0
S:1 Broken internal HF cable.
Reset power. If fault persists,
contact your local Siemens rep-
resentative: repair required.
1
S:2
No power supply to
technology board.
Reset power. If fault persists,
contact your local Siemens rep-
resentative: repair required.
2
S:10
Input parameters High Cali-
bration Point and Low Cali-
bration Point are the same.
Check calibration settings of
device. Ensure settings for High
Calibration Point and Low Cali-
bration Point are different.
1
3
S:11
Internal temperature sen-
sor has failed.
Repair required: contact your
local Siemens representative.
4

Siemens sitrans PROBE LU Specifications

General

Measuring Principle	Ultrasonic
Communication	HART
Output	4 to 20 mA
Power Supply	12 to 30 V DC
Process Temperature	-40 to 80 °C
Enclosure Rating	IP68
Material	PVDF
Ambient Temperature	-40 to 70 °C
Measurement Range	0.25 to 12 m (0.8 to 39 ft)