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.2 Network configuration
SITRANS LR250 (PROFIBUS PA)
230 Operating Instructions, 01/2014, A5E32221386-AB
C.2
Network configuration
To configure a PROFIBUS PA Class 1 Master (for example, a PLC), you will need a
GSD
file.
C.2.1
The GSD file
The GSD file
SIEM8150.gsd
is available from the SITRANS LR250 product page on our web
site. Go to the product page of our website and click on
Support > Software Downloads:
Product page (http://www.siemens.com/LR250)
C.3
Bus termination
Note
PROFIBUS PA cable shield MUST be terminated at both ends of the cable for it to work
properly. Please refer to the PROFIBUS PA User and Installation Guideli
nes (order number
2.092), available from:
PROFIBUS PA (
http://www.profibus.com/)
C.4
Power demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 15 mA for SITRANS LR250. Allow
a current reserve for safety.