Serial I/O Parameters - Honeywell HMR3000 User Manual

HMR3000 User's Guide
TC1 time constant
(T)
Query
Response
S smoothing factor
(S)
Query
Response
L smoothing factor
(L)
Query
Response

4.4 Serial I/O Parameters

Parameters in this section affect the serial output functions of the compass board.
Name
Baud Rate
Query
Response
HDG Update Rate
(R)
Query
Response
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Sets the filter constant.
Normalized time constant for IIR filter 1
T=0 (disable), T=1 (= 72 msec),
T=255 (= 18.4 sec)
Normalized time constant, T,
Sets the parameter (S) for the non-linear
Heading filter.
Smoothing amount (see algorithm in text)
0 = disable, Max = 0.999985
m=S*65535
m=S*65535
Sets the parameter (L) for the non-linear
Heading filter.
Difference knee in mils (see algorithm in
text)
0 = disable, 1 = 1 mil, max = 255 mils
Smoothing factor (L)
Description
Sets the Serial I/O Baud rate: Index Value (I)
1200 : (2)
2400 : (4)
4800 : (8)
9600 : (16)
19200 : (32)
Should be followed by a Force Reset
command for new rate to be active
immediately or a power up is required
Returns the Index value for the baud rate
Sets the HDG message update rate (R ) in
sentences per minute
Allowed R values are indexed with an
integer (I) - see table below
Returns Index value, I, for HDG update rate
#BA2=T*hh<CR><lf>
#BA2?*0E<CR><lf>
#T*hh<CR><lf>
#WB2=m*hh<CR><lf>
#WB2?*18<CR><lf>
#m*hh<CR><lf>
#BB1=L*hh<CR><lf>
#BB1?*0E<CR><lf>
#L*hh<CR><lf>
Command Syntax
#BA4H=2T*24 <CR><lf>
#BA4H=4T*22<CR><lf>
#BA4H=8T*2E<CR><lf>
#BA4H=16T*11<CR><lf>
#BA4H=32T*17<CR><lf>
#BA4H?*40<CR><lf>
#I*hh<CR><lf>
#BAA=I*hh<CR><lf>
#BAA?*7D<CR><lf>
#I*hh<CR><lf>
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