SOMMER USH-9, Manual

Page: 7 / 132

11.7 Configuring the USH-9 for snow measurements 57
11.8 Configuring the USH-9 for water level measurements 57
12 Communication 59
12.1 Communication protocols 59
12.2 Data output 59
12.2.1 Main values 59
12.2.2 Special values 60
12.2.3 Analysis values 60
12.2.4 Exception values 61
12.3 RS-485 62
12.3.1 What is RS-485? 62
12.3.2 What can I do with it? 62
12.3.3 Configuration 62
12.3.4 Data output options 64
12.3.5 Sommer protocol 64
12.3.6 Standard protocol 68
12.3.7 Sommer old protocol 70
12.3.8 RS-485 commands 71
12.3.9 Sommer CRC-16 73
12.4 SDI-12 74
12.4.1 What is SDI-12? 74
12.4.2 What can I do with it? 74
12.4.3 Configuration 74
12.4.4 Data structure 74
12.4.5 SDI-12 commands 75
12.5 Modbus 79
12.5.1 What is Modbus? 79
12.5.2 What can I do with it? 80
12.5.3 Wiring 80
12.5.4 Configuration 80
12.5.5 Modbus commands and registers 86
12.5.6 Reactivate Sommer protocol 89
12.5.7 PLC integration 94
13 Analog output 95
13.1 What can I do with it? 95
13.2 How to wire analog outputs 95
13.3 Activation 95
13.4 Scaling 96
13.4.1 IOUT 1 96
13.4.2 IOUT 2 97