Siemens SITRANS LR260 Operating Instructions Manual page 5
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Also See for SITRANS LR260:
- Quick start manual (225 pages) ,
- Operating instructions manual (184 pages) ,
- Application manual (2 pages)
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Appendix D: Technical Reference ............................................................................... 105
Principles of Operation ..................................................................................................................... 105
Echo Processing ................................................................................................................................. 105
Process Intelligence ................................................................................................................ 105
Time Varying Threshold (TVT) Curves ................................................................................. 106
Echo Lock ................................................................................................................................... 106
Echo Position Detection .......................................................................................................... 106
Auto False Echo Suppression ............................................................................................... 107
Measurement Range ........................................................................................................................ 107
Near Range ................................................................................................................................ 107
Far Range ................................................................................................................................... 108
Measurement Response .................................................................................................................. 108
Damping ................................................................................................................................................ 108
Loss of Echo (LOE) .............................................................................................................................. 108
LOE (Loss of Echo) Timer ........................................................................................................ 109
Fail-safe Mode .................................................................................................................................... 109
Fail-safe value ........................................................................................................................... 109
Horn Antenna .............................................................................................................................111
Appendix E: Application Example ............................................................................... 113
Flour in steel storage vessel, level measurement .............................................................113
Appendix F: PROFIBUS PA Profile Structure ............................................................. 115
PROFIBUS Level Device Design ......................................................................................................115
Description of the blocks .........................................................................................................116
Appendix G: Communications via PROFIBUS PA ..................................................... 121
Device Configuration tool ..................................................................................................................121
SIMATIC PDM ............................................................................................................................121
Network Configuration ......................................................................................................................121
The GSD file ................................................................................................................................121
Bus Termination ...................................................................................................................................121
Power Demands ..................................................................................................................................122
PROFIBUS address .............................................................................................................................122
Operating as a Profile Device ...........................................................................................................122
Configuring a device .................................................................................................................123
Configuring PROFIBUS PA with an S7-300/ 400 PLC ........................................................123
Cyclic versus Acyclic Data ................................................................................................................123
Cyclic Data ..................................................................................................................................123
Status Byte ...........................................................................................................................................124
Condensed Status ...............................................................................................................................124
Status Byte ...........................................................................................................................................126
Diagnostics ...........................................................................................................................................127
Diagnosis reply (available cyclically) ....................................................................................127
Diagnosis Object (available cyclically or acyclically) .......................................................127
Extended Mode Diagnosis ......................................................................................................128
Condensed Mode Diagnosis ..................................................................................................128
Acyclic Extended Diagnostics (General Fault Codes) ......................................................129
Acyclic Data ..........................................................................................................................................132
.......................................................... 110
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