SOMMER SPA-2, Manual

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10 Configuration 49
10.1 Configuration with Commander support software 49
10.2 Configuration with a terminal program 51
10.3 Configuration errors 53
10.3.1 Device messages 53
10.4 What do I need to configure? 54
10.4.1 General settings 54
10.4.2 Calibration of SPA-2-ribbon-sensors 55
10.4.3 Zero test and adjustment 56
10.4.4 Span test and adjustment 57
10.4.5 Adjustment of snow depth measurement 58
11 Serial communication 59
11.1 What are the options? 59
11.2 Which data do I get? 59
11.2.1 Exception values 60
11.3 RS-485 61
11.3.1 What is it? 61
11.3.2 What can I do with it? 61
11.3.3 How do I wire it? 61
11.3.4 How do I configure it? 62
11.3.5 How is the output structured? 62
11.3.6 Sommer protocol 62
11.3.7 Standard protocol 65
11.3.8 Which commands are available? 68
11.3.9 Sommer CRC-16 70
11.4 SDI-12 70
11.4.1 What is it? 70
11.4.2 What can I do with it? 70
11.4.3 How do I wire it? 70
11.4.4 How do I configure it? 71
11.4.5 How are commands structured? 71
11.4.6 Which commands are available? 71
11.5 Modbus 75
11.5.1 What is it? 75
11.5.2 What can I do with it? 75
11.5.3 How do I wire it? 75
11.5.4 How do I configure it? 76
11.5.5 How do I switch back to Sommer protocol? 80
11.5.6 Which commands are available? 85