Siemens SITRANS P DS III Operating Instructions Manual page 7

6.5.2 Operation using buttons .......................................................................................................... 79
6.5.3 Setting/adjusting electrical damping ....................................................................................... 79
6.5.4 Calibrate zero point ................................................................................................................. 80
6.5.5 Locking of buttons and functions ............................................................................................ 81
6.5.6 Measured value display .......................................................................................................... 82
6.5.7 Unit .......................................................................................................................................... 84
6.5.8 Bus address ............................................................................................................................ 88
6.5.9 Device operation type ............................................................................................................. 88
6.5.10 Position of the decimal point ................................................................................................... 90
6.5.11 Display of the zero-point adjustment ...................................................................................... 90
6.5.12 LO calibration .......................................................................................................................... 91
6.5.13 HI calibration ........................................................................................................................... 92
7 Operator control functions via PROFIBUS ............................................................................................. 95
7.1 Communications structure for PROFIBUS PA ....................................................................... 95
7.1.1 Overview ................................................................................................................................. 95
7.1.2 Block model for collection and processing of measured values ............................................. 95
7.1.3 Pressure transducer block ...................................................................................................... 98
7.1.3.1 Pressure transducer block (transducer block 1) ..................................................................... 98
7.1.3.2 Linearization type function group .......................................................................................... 100
7.1.3.3 Units of the pressure transducer block ................................................................................. 102
7.1.4 Electronics temperature transducer block ............................................................................ 103
7.1.5 Analog input function block ................................................................................................... 104
7.1.6 Totalizer function block ......................................................................................................... 105
7.2 Overview of operating functions ........................................................................................... 106
7.3 Measurement ........................................................................................................................ 106
7.4 Settings ................................................................................................................................. 107
7.4.1 Overview of settings .............................................................................................................. 107
7.4.2 Settings ................................................................................................................................. 107
7.4.3 Pressure measurement......................................................................................................... 107
7.4.4 Level measurement .............................................................................................................. 108
7.4.5 Flow measurement ............................................................................................................... 111
7.4.6 Adjusting to a desired process value .................................................................................... 114
7.5 Electrical damping (filter time constant) ................................................................................ 116
7.6 Key lock and write protection ................................................................................................ 116
7.7 Warning and alarm limits ...................................................................................................... 117
7.8 Failure behavior .................................................................................................................... 119
7.8.1 Overview of failure behavior ................................................................................................. 119
7.8.2 Output ................................................................................................................................... 119
7.8.3 Totalizer output ..................................................................................................................... 119
7.9 Diagnostics functions ............................................................................................................ 120
7.9.1 Operating hours counter ....................................................................................................... 120
7.9.2 Calibration interval and service interval ................................................................................ 120
7.9.3 Clearing warning ................................................................................................................... 121
7.9.4 Clearing the alarm ................................................................................................................. 121
7.9.5 Min/max indicator .................................................................................................................. 122
7.10 Simulation ............................................................................................................................. 122
7.10.1 Overview of simulation .......................................................................................................... 122
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08
Table of contents
7