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: Communications via Foundation Fieldbus
- C Appendix C: Certificates and support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
249
Appendix B: Communications via Foundation
Fieldbus
B
SITRANS LR250 (Foundation Fieldbus) is an FF (H1) device of Class 31PS, and 32L. It
supports publish and subscribe functionality as well as Backup LAS functionality. The full range
of SITRANS LR250 functions is available only over an FF network.
Foundation Fieldbus (FF) is an open industrial protocol. Full details about FF can be obtained
from:
Foundation Fieldbus (http://www.fieldbus.org/
)
For details on the use of Foundation Fieldbus protocol with Siemens FF level instruments, see
manual
Foundation Fieldbus for Level Instruments
(7ML19985MP01). The manual is available
on the CD of Siemens manuals, included in the box with your Siemens level instrument, or for
other Siemens level measurement manuals, go to:
Siemens level (http://www.siemens.com/level
)
Look under
Level Measurement
.
B.1
Field Communicator 375 (F375)
This device supports Field Communicator 375 (FC375). The FC375 menu structure is very
similar to the menu structure for AMS Device Manager [see AMS Menu Structure (Page 63).]