Non-specific

This value is bad, but no specific reason is known

0

1

2

3

Configuration Error

There is some specific configuration problem in the server. For example, this specific item could be deleted

4

5

6

7

Not Connected

Input must be logically connected to something, but it is not. This quality may reflect that no value is available at this time, because this value could not be provided by its data source

8

9

10

11

Device Failure

A device failure was detected

12

13

14

15

Sensor Failure

A sensor failure was detected (the Limit field may provide additional information)

16

17

18

19

Last Known Value

Communication failed. However, the last known value is available. Notice that this value's age may be determined by the Timestamp property

20

21

22

23

Communication Failure

Communication failed. There is no last known value available

24

25

26

27

Out of Service

Block is off scan, or locked

28

29

30

31

N/A

Not used

32 - 63

Non-specific

There is no specific reason

64

065

066

067

Last Usable Value

A device providing this value stopped doing so. The returned value must be considered as old. Notice that this differs from a Bad value with Substatus 5 (last known value). That status is associated specifically with a detectable communication error on a retrieved value. This error is associated with a failure of some external source that would insert something into this value within an acceptable period of time. Notice that this value's age can be determined by the Timestamp property

68

069

070

071

N/A

Not used

72 - 79

Sensor Not Accurate

Either this value is stuck at one of sensor's limits (in which case the Limit field must be set to 1 or 2) or this sensor is otherwise known to be out of calibration via some internal diagnosis (in which case the Limit field must be zero)

80

81

82

83

Engineering Unit Exceeded

The returned value is outside the limits defined for this parameter. Notice that in this case the Limits field indicates which limit was exceeded, but does not necessarily imply that this value cannot move outside the specified range

84

85

86

87

Sub-Normal

This value is derived from multiple sources and there is a number smaller than required of good sources

88

89

90

91

N/A

Not used

92 - 127

Non-specific

This value is good. There are no special conditions

192

193

194

195

N/A

Not used

196 - 215

Local Override

Typically indicates that an input was disconnected and a manually-entered value was forced

216

217

218

219

N/A

Not used

220 - 255