Siemens sitrans PROBE LU - Page 4

ii
mmmmm
Table of Contents
Diagnosis reply (applies only to cyclic masters) ...............................................................28
Acyclic Diagnostics ..................................................................................................................28
Acyclic Extended Diagnostics (General Fault Codes) ......................................................30
Acyclic Data .........................................................................................................................................32
Configuration Example .............................................................................................................33
Accessing parameters remotely .....................................................................................................33
Functions .....................................................................................................................................33
Changing parameter settings .................................................................................................34
Appendix A: Technical References .............................................................................35
Principles of operation ......................................................................................................................35
Measurement Response ...................................................................................................................35
Echo Lock ..............................................................................................................................................35
Loss of Echo (LOE) ..............................................................................................................................36
LOE Timer ....................................................................................................................................36
Failsafe Mode ......................................................................................................................................36
Failsafe value .............................................................................................................................37
Near Range (Blanking) ......................................................................................................................37
False Echoes ........................................................................................................................................37
Auto False-Echo Suppression ................................................................................................37
Open Channel Monitoring (OCM) ...................................................................................................39
Chemical compatibility .......................................................................................................................39
Appendix B: Troubleshooting .......................................................................................40
General Fault Codes ...........................................................................................................................40
Appendix C: Maintenance .............................................................................................41
Unit Repair and Excluded Liability ..................................................................................................41
Appendix D: programming via the handheld programmer ......................................42
Parameter Menu Structure ....................................................................................................42
The LCD Display......................................................................................................................... 42
Using the handheld programmer .......................................................................................... 42
Handheld Programmer: key functions in RUN mode ....................................................... 43
Handheld Programmer: key functions in Navigation mode............................................ 44
Handheld Programmer: key functions in Edit mode......................................................... 44
Security ........................................................................................................................................44
Local operation enable ............................................................................................................ 44
Write locking .............................................................................................................................. 45
Remote operation enable........................................................................................................ 45
How to do a Master Reset ......................................................................................................46
Master Reset.............................................................................................................................. 46
Individual Parameter Reset .................................................................................................... 46
Fault Reset .................................................................................................................................. 47
Device calibration ..................................................................................................................... 47
Appendix E: LCD menu structure ..................................................................................49
Appendix F: PROFIBUS PA Profile Structure .............................................................55
PROFIBUS Level Device Design ......................................................................................................55
Block Model for recording and processing measured values ...................................... 55
Description of the blocks .........................................................................................................56
Level Transducer Block function groups ............................................................................ 56
Analog Input Function Blocks 1 and 2.................................................................................. 58