FT Technologies acures FT742-SM, User Manual

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FT742-SM (RS422 & RS485) Sensors
– User Manual
6.1 Introduction ..................................................................................................................... 22
6.2 RS422 & RS485 Protocol ................................................................................................ 22
6.3 Configuring the Sensor .................................................................................................. 25
6.4 Communication ............................................................................................................... 25
6.4.1 Conventions used in this manual .................................................................................. 25
6.4.2 Data Transmission ........................................................................................................ 26
6.4.3 Message Format ........................................................................................................... 26
6.4.4 Listener and Talker Identifiers ....................................................................................... 27
6.4.5 Calculating the Message Checksum ............................................................................. 27
6.4.6 Disabling the Checksum ............................................................................................... 27
7 PARAMETER SETTINGS .................................................................................. 29
7.1 Command Types ............................................................................................................. 29
7.1.1 Set Commands ............................................................................................................. 29
7.1.2 Query Commands......................................................................................................... 30
7.2 User Calibration Table .................................................................................................... 31
7.3 Timing Constraints ......................................................................................................... 32
7.4 Command Parameters .................................................................................................... 33
7.4.1 BR: Set or Query the Serial Interface Baud Rate .......................................................... 33
7.4.2 CF: Set or Query the Wind Compass Settings .............................................................. 34
7.4.3 CU: Set or Query the Continuous Update Setting ......................................................... 36
7.4.4 DF: Set or Query the Wind Velocity Data Format .......................................................... 37
7.4.5 DG: Query the Run-time Counter .................................................................................. 38
7.4.6 DL: Set or Query the Command Delay Interval ............................................................. 39
7.4.7 ER: Query or Reset the Error Report ............................................................................ 40
7.4.8 FL.1: General Filter Settings ......................................................................................... 41
7.4.9 FL.2: Set or Query Filter Lengths .................................................................................. 42
7.4.10 FL.3: Set or Query the Selective Filter ...................................................................... 43
7.4.11 HT.1: General Heater Settings................................................................................. 44
7.4.12 HT.2: Delay Heater Settings .................................................................................... 45
7.4.13 ID: Set or Query the Listener & Talker Identifiers ...................................................... 46
7.4.14 MM: Reset or Query the Min/Max Recorded Wind Speed ......................................... 47
7.4.15 OS: Overspeed Warning Scheme ............................................................................ 48
7.4.16 PR: Query the Parameter Report .............................................................................. 49
7.4.17 RS: Reset the Sensor ............................................................................................... 50
7.4.18 SN: Query the Serial Number and Platform Version ................................................. 51
7.4.19 SV: Query the Software Version ............................................................................... 52
7.4.20 UC.1: General User Calibration Settings .................................................................. 53
7.4.21 UC.2: Clear User Calibration Table Record .............................................................. 54
7.4.22 UC.3: Set User Calibration Table Record ................................................................. 55
7.4.23 UC.4: Save and Read User Calibration Table ........................................................... 56
7.4.24 UC.5: Set & Query User Calibration Table Label ...................................................... 57
7.4.25 US: Set or Query Saved Parameters ........................................................................ 58
7.4.26 WV Polar: Query the Wind Velocity Reading ............................................................ 60
7.4.27 WV NMEA: Query the Wind Velocity Reading .......................................................... 61