FT Technologies FT742-D-SM, Руководство пользователя

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FT742-SM (RS422 & RS485) Sensors
– User Manual
6 SENSOR COMMUNICATION ........................................................................... 30
6.1 Introduction ........................................................................................................................ 30
6.2 RS422 & RS485 Protocol ................................................................................................... 30
6.3 Configuring the Sensor ..................................................................................................... 33
6.4 Communication .................................................................................................................. 33
6.4.1 Conventions used in this manual .................................................................................... 33
6.4.2 Data Transmission .......................................................................................................... 34
6.4.3 Message Format.............................................................................................................. 34
6.4.4 Listener and Talker Identifiers ......................................................................................... 35
6.4.5 Calculating the Message Checksum ............................................................................... 35
6.4.6 Disabling the Checksum .................................................................................................. 35
7 PARAMETER SETTINGS ................................................................................ 37
7.1 Command Types ................................................................................................................ 37
7.1.1 Set Commands ................................................................................................................ 37
7.1.2 Query Commands ........................................................................................................... 38
7.2 User Calibration Table ....................................................................................................... 39
7.3 Timing Constraints ............................................................................................................ 40
7.4 Command Parameters ....................................................................................................... 41
7.4.1 AM: Set or Query Anemometer Mount Orientation ......................................................... 41
7.4.2 AT.1: Query the Acoustic Temperature ........................................................................... 42
7.4.3 AT.2: Set or Query the Acoustic Temperature Units ....................................................... 43
7.4.4 AT.3 Set or Query the Acoustic Temperature Filter Length ............................................ 44
7.4.5 BR: Set or Query the Serial Interface Baud Rate ............................................................ 45
7.4.6 CF: Set or Query the Wind Compass Settings ................................................................ 46
7.4.7 CU: Set or Query the Continuous Update Setting........................................................... 48
7.4.8 DF: Set or Query the Wind Velocity Data Format ........................................................... 50
7.4.9 DG: Query the Run-time Counter .................................................................................... 52
7.4.10 DL: Set or Query the Command Delay Interval .......................................................... 53
7.4.11 ER: Query or Reset the Error Report .......................................................................... 54
7.4.12 FL.1: Set or Query General Filter Settings ................................................................. 55
7.4.13 FL.2: Set or Query Filter Lengths ................................................................................ 56
7.4.14 FL.3: Set or Query the Selective Filter ........................................................................ 57
7.4.15 HT.1: Set or Query General Heater Settings .............................................................. 58
7.4.16 HT.2: Set or Query Delay Heater Settings .................................................................. 59
7.4.17 ID: Set or Query the Listener & Talker Identifiers ....................................................... 60
7.4.18 MM: Reset or Query the Min/Max Recorded Wind Speed.......................................... 61
7.4.19 OS: Set or Query Overspeed Warning Scheme ........................................................ 62
7.4.20 RS: Reset the Sensor ................................................................................................. 63
7.4.21 SN: Query the Serial Number and Platform Version .................................................. 64
7.4.22 SV: Query the Software Version ................................................................................. 65
7.4.23 UC.1: General User Calibration Settings .................................................................... 66
7.4.24 UC.2: Clear User Calibration Table Record ................................................................ 67
7.4.25 UC.3: Set User Calibration Table Record ................................................................... 68
7.4.26 UC.4: Save and Read User Calibration Table ............................................................ 69
7.4.27 UC.5: Set & Query User Calibration Table Label ....................................................... 70
7.4.28 US: Set or Query Saved Parameters .......................................................................... 71
7.4.29 WV Polar: Query the Wind Velocity Reading .............................................................. 73
7.4.30 WV NMEA: Query the Wind Velocity Reading ............................................................ 75