5. Wiring and Power Management..................................................................5
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5.1 Power Supplies.....................................................................................................53
5.2 Power Management............................................................................................ 56
5.3 Wiring with 8-pin M12 Connector...................................................................... 58
5.3.1 External Wiring..............................................................................................58
5.3.2 Internal Wiring................................................................................................61
5.4 Wiring Using Screw Terminals........................................................................... 64
5.5 Data Communication Interfaces........................................................................ 67
6. Connection Options......................................................................................... 69
6.1 Communication Protocols..................................................................................69
6.2 Connection Cables.............................................................................................. 69
6.3 Connecting with Service Cable..........................................................................70
6.3.1 Connecting through M12 Bottom Connector or Screw Terminal..............71
6.4 Communication Setting Commands................................................................. 72
6.4.1 Checking Current Communication Settings (aXU)................................... 72
6.4.2 Settings Fields............................................................................................... 73
6.4.3 Changing the Communication Settings (aXU).......................................... 75
7. Retrieving Data Messages..............................................................................77
7.1 General Commands............................................................................................. 77
7.1.1 Reset (aXZ).................................................................................................... 77
7.1.2 Precipitation Counter Reset (aXZRU).........................................................78
7.1.3 Precipitation Intensity Reset (aXZRI)......................................................... 79
7.1.4 Measurement Reset (aXZM)........................................................................80
7.2 ASCII Protocol....................................................................................................... 81
7.2.1 Abbreviations and Units................................................................................81
7.2.2 Device Address (?)........................................................................................82
7.2.3 Acknowledge Active Command (a)............................................................83
7.2.4 Wind Data Message (aR1)............................................................................ 83
7.2.5 Pressure, Temperature and Humidity Data Message (aR2).....................84
7.2.6 Precipitation Data Message (aR3).............................................................. 85
7.2.7 Supervisor Data Message (aR5)..................................................................85
7.2.8 Combined Data Message (aR).....................................................................86
7.2.9 Composite Data Message Query (aR0)......................................................87
7.2.10 Polling with CRC............................................................................................87
7.2.11 Automatic Mode............................................................................................89
7.2.12 Automatic Composite Data Message (aR0)..............................................90
7.3 SDI-12 Protocol.................................................................................................... 90
7.3.1 Address Query Command (?).......................................................................91
7.3.2 Acknowledge Active Command (a).............................................................91
7.3.3 Change Address Command (aAb)..............................................................92
7.3.4 Send Identification Command (aI)..............................................................9
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7.3.5 Start Measurement Command (aM)........................................................... 94
7.3.6 Start Measurement Command with CRC (aMC)........................................95
7.3.7 Start Concurrent Measurement (aC).......................................................... 96
7.3.8 Start Concurrent Measurement with CRC (aCC).......................................97
WXT530 Series User Guide M211840EN-D
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