Specifications

Process Flow
72 Connection to FOUNDATION Fieldbus IM/265/7/9/ADD/FF-EN_01
12.9 Status supported
The FOUNDATION™ Fieldbus defines different dynamic variables having the status byte to be
produced together with the value. The status byte gives detailed information about the Quality of
the associated variable's value. The following table lists the different status conditions
available/generated for the output dynamic variables coming out from the AIFB, PIDFB and TB
blocks
2
implemented in the 265 / 267 / 269 models of the 2600T Series. For each status
condition is available a brief explanation about the meaning and an indication about into which
block it is generated.
Status byte conditions supported in the Variables
"AIFB_OUT, PID_OUT, TB_PRIMARY_VALUE"
Quality Substatus Limits Producer Block
Dec Hex Gr Gr QS QS QS QS Qu Qu
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 00 0 0 = bad TB, AI, MV, PID
64 40 0 1 = uncertain TB, AI, MV
128
192
80
C0
1
1
0
1
= good
(Not Cascade)
= good
(Cascade)
TB, AI, MV, PID
PID
Details for BAD
0 00 0 0 0 0 0 0 = non-specific AI, MV, PID
4 04 0 0 0 0 0 1 = configuration
error
AI
8 08 0 0 0 0 1 0 = not connected PID
12 0C 0 0 0 0 1 1 = device failure TB, PID
16 10 0 0 0 1 0 0 = sensor failure TB
20 14 0 0 0 1 0 1 = no
communication
with LUV
PID**
24 18 0 0 0 1 1 0 = no
communication
no LUV
PID**
28 1C 0 0 0 1 1 1 = out of service TB, AI, PID