Specifications
Process Flow
74 Connection to FOUNDATION Fieldbus IM/265/7/9/ADD/FF-EN_01
Details for UNCERTAIN
68 44 0 1 0 0 0 1 = Last Usable
Value
TB
72 48 0 1 0 0 1 0 = substitute set AI
76 4C 0 1 0 0 1 1 = Initial Value TB
80 50 0 1 0 1 0 0 = sensor
conversion not
accurate
TB
84 54 0 1 0 1 0 1 = engineering
unit range
violation
TB
Last Usable Value (LUV) detail:
Whatever was writing this value has stopped doing so. (This happens when an input is
disconnected by a configuration tool).
Substitute Set detail:
Set when the value is written when the block is not Out of Service.
Initial Value detail:
Set when the value of an input parameter is written when the block is Out of Service.
Sensor Conversion not Accurate detail:
This status is produced when the auxiliary values for compensation are not more usable
(compensation sensors failed). The OUT will be always produced but with the last valid
compensation. This gives an indication of degraded performances of the device.
Engineering unit range violation detail:
This status is produced when the value is outside the operating range selected for this variable.










