FT FT742 - 6 Parameter Settings; Command Types; Set Commands

Section 6 Parameter Settings
34 FT742-DM (RS485) Sensors – User Manual
6 PARAMETER SETTINGS
FT sensors are configurable. The factory default settings can be modified on despatch to the required customer
settings.
6.1 Command Types
6.1.1 Set Commands
Figure 22 lists the commands that may be sent to the sensor from the host computer that are used to SET
configuration options for the wind sensor.
Command
Mnemonic
Configuration Options
Factory Default
Section
Serial interface baud rate
BR
1200, 2400, 4800, 9600,
19200, 38400
9600
6.4.1
Datum offset
CF
000.0° to 359.9°
000.0°
6.4.2
Continuous Update
CU
Enable or Disable
Update interval, 0.1-6000
seconds
Disabled
6.4.3
Wind velocity data format
DF
Polar or NMEA
Polar
6.4.4
Command delay interval
DL
00 to 20
01
6.4.6
Clear Error Report
ER
Reset
000000000000
6.4.7
Wind velocity filter
FL
Enable or Disable,
Speed filter length
Direction filter length
Enabled
0016
0016
6.4.8
6.4.9
Selective Filter
FL
Enable or Disable
Selective filter length
Disabled
010
6.4.10
Heater settings
HT
Setpoint Temperature
Heater Start Delay Time
Current Limit
Undervoltage limit
Heater Disabled
4 seconds delay
4A
11V
6.4.11
6.4.12
6.4.13
Listener and talker identifiers
ID
Listener ID = xx
Talker ID = xx
Listener ID = 01
Talker ID = WI
6.4.14
Min/Max wind speed
MM
Reset
999.9,000.0
6.4.15
Overspeed Warning Scheme
OS
Enabled or disable
Disabled
6.4.16
Reset
RS
Load Factory Default,
Load Current Settings,
Load Saved Parameters
NA
6.4.18
User Calibration Table
UC
Enable or Disable
Clear
Wind speed table record
Save wind speed table
Table label
Disabled
NA
NA
NA
6.4.21
6.4.22
6.4.23
6.4.24
6.4.25
Save User Parameters
US
Copies current
Parameters
NA
6.4.26
Figure 22: Set Commands
When a valid message is recognised by the sensor, the sensor will carry out the command contained in the
message. To verify that the command has been successfully carried out, an associated QUERY command can
be sent after most SET commands (see Section 6.1.2 for the list of parameters which may be queried).