Bit 1) Message Probable cause Actions
17-31 Reserved for future use − −
1) Bit is shown in MD30 interface response data message, not in RoadAI.
2) Reported by MD30 models that have the window contamination feature.
Table 5 Status information
Bit 1) Message Value Description
0 Not ready to measure 0= Ready
1= Not ready
Unit is starting up. When unit
reaches full operational status, the
flag is cleared. Measurement data
may be invalid.
If the condition persists, check
error bits.
1 Reference setting ongoing 0= Not ongoing
1= Ongoing
If reference setting does not start,
check status information bits
10 ... 13 and error bits.
2 Laser temperature change in
progress
0= Not ongoing
1= Ongoing
Unit operational, but
measurement data may be invalid.
Wait for laser temperature change
to finish.
If the condition persists, check
error bits.
3Window contamination warning 2) 0= OK
1= Contaminated
Window is getting contaminated.
Clean the window.
4 Window heating 0= OK
1= Not working
If heating is not working, monitor
window contamination.
5 Low input voltage detected 0= Voltage OK
1= Voltage low
Unit operational, but check input
voltage.
6 High input voltage detected 0= Voltage OK
1= Voltage high
7 High internal temperature
detected
0= Temperature OK
1= Temperature high
First notification of unit getting
too hot.
8 Temperature unit 0= °C
1= °F
−
9 Layer thickness unit 0= mm
1= inch
−
10 Reference setting interrupted due
to laser temperature change
0= False
1= True
Repeat reference setting when
laser temperature change has
finished.
11 Reference setting interrupted due
to hardware error, check
parameter 0x56
0= False
1= True
Check error bits and parameter
0x56, which contains reason for
error.
12 Reference setting values are not
updated due to poor signal quality
0= False
1= True
Excessive variation in road surface
type. Find more representative
road surface.
Reference Guide M212309EN-C
9
