SOMMER MRL-7, User Manual

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9.3.3 Measurement intervals ...................................................................................................... 56
9.3.4 Multiple RS-485 devices ..................................................................................................... 57
9.3.5 Managing RS-485 devices with Commander ...................................................................... 57
9.3.6 Reading data from an RS-485 device .................................................................................. 57
9.3.7 Polling data from an RS-485 device .................................................................................... 58
9.4 SDI-12 ............................................................................................................................................ 58
9.4.1 Principals ............................................................................................................................. 58
9.4.2 Measurement intervals ...................................................................................................... 59
9.4.3 Measurements with an SDI-12 sensor ................................................................................ 59
9.5 GPS ................................................................................................................................................ 60
9.6 How to view live data .................................................................................................................... 60
9.7 How to collect data ....................................................................................................................... 61
9.8 How to view collected data ........................................................................................................... 61
10 Parameter definition .................................................................................................................. 62
Appendix A Trouble shooting .......................................................................................................... 88
A.1 Device is not powering up ............................................................................................................. 88
A.2 Data are not transmitted .............................................................................................................. 88
A.3 Commander does not find connected digital sensors .................................................................. 88
A.4 Data logger clock displays year 2050 ............................................................................................ 88
A.5 Camera does not record images ................................................................................................... 89
A.6 MRL-7 receives no data from RS-485 (SBP) sensors ..................................................................... 89
A.7 I receive repeated identical messages after limit violation .......................................................... 89
A.8 Measurement values are one hour behind .................................................................................. 89
Appendix B Error codes ................................................................................................................... 90
B.1 Error and exception values ........................................................................................................... 90
B.2 System errors ................................................................................................................................ 90
Appendix C Serial interfaces ............................................................................................................ 94
C.1 Protocols ....................................................................................................................................... 94
C.1.1 Sommer protocol ................................................................................................................ 94
C.1.2 Standard protocol ............................................................................................................... 95
C.2 Commands and answers ............................................................................................................... 95
C.3 Error codes .................................................................................................................................... 97
C.4 Sommer CRC-16 ............................................................................................................................ 97
Appendix D Escape characters ......................................................................................................... 98
Appendix E DIP-switches ................................................................................................................ 99