The data types Quality and Coded Enums are bit strings. Each bit or sometimes two bits describe a status.
|
Bit 0 |
00 -> good 01 -> invalid 10 -> none 11 -> questionable |
|
Bit 1 |
|
|
Bit 2 |
Overflow |
|
Bit 3 |
OutOfRange |
|
Bit 4 |
BadReference |
|
Bit 5 |
Oscillatory |
|
Bit 6 |
Failure |
|
Bit 7 |
OldData |
|
Bit 8 |
Inconsistent |
|
Bit 9 |
Inaccurate |
|
Bit 10 |
Source (0 -> process, 1 -> substituted) |
|
Bit 11 |
Test |
|
Bit 12 |
OperatorBlocked |
In ibaPDA, the values are displayed as decimal value in the trend graph, for example. For a better readability, a representation by means of 16 bit decoder, which represents the individual bits, is clearer.
