User's Manual

iii
mmmmm
Table of Contents
Echo Lock ................................................................................................................................... 104
Echo Position Detection .......................................................................................................... 104
Auto False Echo Suppression ............................................................................................... 105
Measurement Range ........................................................................................................................ 105
Near Range ................................................................................................................................ 105
Far Range ................................................................................................................................... 106
Measurement Response .................................................................................................................. 106
Damping ................................................................................................................................................ 106
Loss of Echo (LOE) .............................................................................................................................. 106
LOE (Loss of Echo) Timer ........................................................................................................ 107
Fail-safe Mode .................................................................................................................................... 107
Fail-safe value ........................................................................................................................... 107
Process Pressure/Temperature derating curves
..........................................................108
Horn Antenna ............................................................................................................................ 109
Appendix E: Application Example ............................................................................... 111
Flour in steel storage vessel, level measurement .............................................................111
Appendix F: PROFIBUS PA Profile Structure ............................................................. 113
PROFIBUS Level Device Design ......................................................................................................113
Description of the blocks .........................................................................................................114
Appendix G: Communications via PROFIBUS PA ..................................................... 119
Device Configuration tool ..................................................................................................................119
SIMATIC PDM ............................................................................................................................119
Network Configuration ......................................................................................................................119
The GSD file ................................................................................................................................119
Bus Termination ...................................................................................................................................119
Power Demands ..................................................................................................................................120
PROFIBUS address .............................................................................................................................120
Operating as a Profile Device ...........................................................................................................120
Configuring a device .................................................................................................................121
Configuring PROFIBUS PA with an S7-300/ 400 PLC ........................................................121
Cyclic versus Acyclic Data ................................................................................................................121
Cyclic Data ..................................................................................................................................121
Status Byte ...........................................................................................................................................122
Condensed Status ...............................................................................................................................122
Status Byte ...........................................................................................................................................124
Diagnostics ...........................................................................................................................................125
Diagnosis reply (available cyclically) ....................................................................................125
Diagnosis Object (available cyclically or acyclically) .......................................................125
Extended Mode Diagnosis ......................................................................................................126
Condensed Mode Diagnosis ..................................................................................................126
Acyclic Extended Diagnostics (General Fault Codes) ......................................................127
Acyclic Data ..........................................................................................................................................130