Chapter 5. HART Communications
5.7.3
Additional Device Status
Command 48 returns four data bytes. Error bits are cleared only when the cause is rectified. Refer to the service manual
for troubleshooting information. Table 18 below shows the error bits and associated SEN898 error condition.
HART Additional
Device Status
Byte
Bit
–
–
0
0
0
1
0
2
0
3
0
4
0
5
0
6
0
7
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
2
0
2
1
2
2
2
3
2
4
2
5
–
–
3
4
3
5
–
–
94
Table 18: Error Codes and Status Bits
Sentinel LCT4
Meaning
–
E0
No Error
E1
Low Signal
E2
Soundspeed
E3
Velocity/Range
E4
Signal Quality
E5
Amplitude
E6
Cycle Skip
E7
Analog Output
E8
Supply Temperature
E9
Return Temperature
E10
E11
E12
E13
Tracking AGC Settled
E14
Tracking Seek Mode
E15
Active TW
E16
Totalizer
E17
Temperature Input
E18
Pressure Input
E19
Density Input
E20
Special Input
E21
API Correction
E22
Degraded Performance
–
–
E29
Stale Data
E30
Channel Off
–
–
Sentinel LCT4 Error Condition
not used
not used
not used
Device Status
Class
–
–
–
good
Flow
error
Flow
error
Flow
error
Flow
error
Flow
error
Flow
error
IO
warning
IO
warning
IO
warning
–
–
–
–
–
–
Flow HP
error
Flow Lp
warning
IO
warning
IO
warning
IO
warning
IO
warning
IO
warning
Flow LP
warning
Flow LP
warning
–
–
Flow
error
Flow
error
–
–
Sentinel™ LCT4 User's Manual
Bits Set
–
4 & 7
4 & 7
4 & 7
4 & 7
4 & 7
4 & 7
4 & 1
4
4
–
–
–
4 & 7
4
4
4
4
4
4
4
4
–
4 & 7
4 & 7
–
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