Vaisala HUMICAP HMM170, User Manual

Page: 4 / 51

7.2 Dimensions ......................................................................................................29
7.3 Accessories and spare parts ......................................................................... 30
Appendix A: Modbus reference.................................................................. 32
A.1 Default communication settings ...................................................................32
A.2 Function codes ................................................................................................32
A.3 Data encoding .................................................................................................32
A.3.1 32-bit floating point or 32-bit integer format ......................................33
A.3.2 16-bit integer format ...............................................................................33
A.4 Modbus registers ............................................................................................34
A.4.1 Measurement data registers .................................................................. 34
A.4.2 Configuration registers ........................................................................... 37
A.4.3 Status registers ....................................................................................... 40
A.4.4 Test value registers ................................................................................. 42
A.5 Device identification objects .........................................................................42
A.6 Exception responses ...................................................................................... 43
A.7 Modbus communication examples .............................................................. 44
Appendix B: FCC Part 15 compliance statement.................................... 47
Maintenance and calibration services........................................................ 49
Warranty............................................................................................................49
Technical support............................................................................................49
Recycling...........................................................................................................49
HMM170 User Guide M212259EN-D
2