Acyclic Extended Diagnostics (General Fault Codes) - Siemens Sitrans Probe LU Instruction Manual

Oxley Creek WWTP Water Reclamation
(Probe LU Manual) Vendor Manual

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
for the location of the
Note:
Certain fault codes (identified by an asterisk [*] in the table below) will persist
until a manual reset has been performed (see
LCD
display
Page 30 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL
Appendix G: Asynchronous Communications Data Map
Cause/symptom
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.
Broken internal HF cable.
No power supply to
technology board.
Input parameters High Cali-
bration Point and Low Cali-
bration Point are the same.
Internal temperature sen-
sor has failed.
.
Reset Fault
on page 74).
Corrective Action
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.
Reset power. If fault persists,
contact your local Siemens rep-
resentative: repair required.
Reset power. If fault persists,
contact your local Siemens rep-
resentative: repair required.
Check calibration settings of
device. Ensure settings for High
Calibration Point and Low Cali-
bration Point are different.
Repair required: contact your
local Siemens representative.
Doc Id: VM11
Active Date: 15/12/2006
on page 61
Byte Bit
0
0
1
2
3
1
4
7ML19985JB02