Appendix C: Communications via PROFIBUS
C.10 Diagnostics
SITRANS LR250 (PROFIBUS PA)
278
Operating Instructions, 08/2014, A5E32221386-AC
Acyclic Extended Diagnostics /General Fault Codes
LCD display
Meaning
Corrective Action
Byte
Bit
S:32
IDENT number conflict.
Ensure value of the Ident number selector
is correct for the network configuration. If it
is correct, the device needs to be re-
parameterized by the PLC.
4
0
S:33
Factory calibration for the internal
temperature sensor has been lost.
Repair required: contact your local
Siemens representative.
1
S:34
Factory calibration for the device has
been lost.
Repair required: contact your local
Siemens representative.
2
S:35
Factory calibration for the device has
been lost.
Repair required: contact your local
Siemens representative.
3
S:36
Unable to start microwave module.
Cycle power. If fault persists, contact your
local Siemens representative.
4
S:37
Measurement hardware problem.
Cycle power. If fault persists, contact your
local Siemens representative.
5
S:38
Microwave module hardware failure:
unable to calculate distance
measurement.
Cycle power. If fault persists, contact your
local Siemens representative.
6
S:43
Factory calibration for the radar receiver
has been lost.
Repair required: contact your local
Siemens representative.
5
3
C.10.6
Acyclic data
SITRANS LR250 supports up to four simultaneous connections by a Class 2 Master (C2
connection). It supports one connection by a Class 1 Master (C1 connection).
In order for a Class 1 Master to read parameters from a device, it needs to know the slot and
absolute index of the parameter.
The parameters are all listed in SIMATIC PDM under Help. If you do not have SIMATIC PDM
you can download the EDD (Electronic Device Description) and reference the HTML help file
directly.