User's Manual
Table Of Contents
- 8 Parameter reference
- 9 Service and maintenance
- 10 Diagnosing and troubleshooting
- 11 Technical data
- 12 Dimension drawings
- 12.1 Threaded horn antenna
- 12.2 Threaded horn antenna with extension
- 12.3 Flanged horn antenna
- 12.4 Flanged horn antenna with extension
- 12.5 Flanged encapsulated antenna (2"/DN50/50A sizes only)
- 12.6 Flanged encapsulated antenna (3"/DN80/80A sizes and larger)
- 12.7 Threaded PVDF antenna
- 12.8 Threaded connection markings
- 12.9 Raised-Face flange per EN 1092-1 for flanged horn antenna
- 12.10 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
- 12.11 Flat-Face flange
- 12.12 Process connection tag (pressure rated versions)
- A Appendix A: Technical reference
- B Appendix B: PROFIBUS PA profile structure
- C Appendix C: Communications via PROFIBUS
- D Appendix D: Certificates and Support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
Appendix C: Communications via PROFIBUS
C.10 Diagnostics
SITRANS LR250 (PROFIBUS PA)
242 Operating Instructions, 01/2014, A5E32221386-AB
Acyclic Extended Diagnostics /General Fault Codes
LCD display
Meaning
Corrective Action
Byte
Bit
S:12
* Internal temperature of the device has
exceeded
specifications: it is operating outside its
temperature range.
• Relocate device and/or lower process
temperature enough to cool device.
• Inspect for heat-related damage and
contact your local Siemens
representative if repair is
required.
• Fault code will persist until a manual
reset is performed using PDM or the
LCD interface.
1
5
S:14
Upper and lower input values (Process
Value Scale) for AIFB1 are the same.
• Check configuration for AIFB1.
• Ensure that Upper Value and Lower
Value (Process Value Scale) are not
the same.
6
S:15
Upper and lower input values
(Process Value Scale) for AIFB2
are the same.
• Check configuration for AIFB2.
• Ensure that Upper Value and Lower
Value (Process Value Scale) are not
the same.
7
S:17
Calibration interval as defined in
Maintenance Required Limit has expired.
Perform calibration.
2
1
S:18
Calibration interval as defined in
Maintenance Demanded Limit has
expired.
Perform calibration. 2
S:28
Internal device failure caused by a RAM
memory error.
Repair required: contact your local
Siemens representative.
3
4
S:29
EEPROM damaged. Repair required: contact your local
Siemens representative.
5
S:31
Flash error. Repair required: contact your local
Siemens representative.
7