RS-Helios-16P User Manual                                                                                       
 
FOV_SET (4 bytes in total) 
Register Description: 
Set  the  azimuth  range  that  the  sensor  can  output  valid  data,  the  values  of  FOV_START  and 
FOV_END could be any integer between 0 to 36000, corresponding 0~360°, the data storage adopts 
the big endian ordering. For example: byte1 = 0x5d,byte2 = 0xc0,byte3 = 0x1f,byte4 = 0x40, 
therefore: 
FOV_START = 93*256+192=24000 
FOV_END = 31*256+64=8000 
Which indicates that the azimuth range for valid data output is from 240.00° to 80.00° in clockwise 
direction. 
Note: In all above calculations, bytes have been converted from hexadecimal to decimal. 
B.4 Motor Phase Offset (MOT_PHASE) 
MOT_PHASE(2 bytes in total) 
Register description: 
This register can be used together with the PPS pulse of GPS to adjust the phase offset of the motor 
at the top of seconds. The value can be set from 0 to 360 corresponding 0 to 360°. The data storage 
adopts the big endian ordering. For example: the byte1=1, byte2=14, so the motor phase should 
be 1*256+14 = 270. 
Note: In all above calculations, bytes have been converted from hexadecimal to decimal. 
B.5 Top Board Firmware Version (TOP_FRM) 
TOP_FRM(5 bytes in total) 
Register description: 
This register corresponds to the top board firmware version: 
Register value: 00 01 06 05 00 
Segmentation of value: 0x0001060500 
Top board firmware version: 01060500