Emerson Fisher FIELDVUE DVC6000f Instruction Manual page 166

DVC6000f Digital Valve Controllers
START
MODE_BLK
OOS?
No
MODE_BLK
MAN?
No
4
MODE_BLK
must be Auto
OP_SELECT
status?
Good
OP_SELECT
value >0?
No
At least 1 good
input?
Yes
SELECT_TYPE
Middle or
Average?
No
SELECT_TYPE
Maximum or
Minimum?
No
SELECT_TYPE
Must be First
Good or Hot
Spare?
No
Illegal Select Type
should never be reached
NOTES:
1
AN INPUT STATUS MAY BE BAD, GOOD, OR UNCERTAIN. IF BAD, THE INPUT IS NOT USED AND THE STATUS IS PROPAGATED AS BAD WITH
SUBSTATUS NON-SPECIFIC. IF GOOD IT IS USED AND THE STATUS IS PROPAGATED AS GOOD (NON-CASCADE). IF UNCERTAIN, AND STATUS_OPTS
IS "USE UNCERTAIN AS GOOD" THEN THE INPUT IS USED AND THE STATUS IS PROPAGATED AS GOOD (NON-CASCADE), OTHERWISE IT IS NOT
USED AND THE STATUS IS PROPAGATED AS BAD WITH SUBSTATUS NON-SPECIFIC.
4-106
Yes
Yes
1
Bad
1
Good
Yes
Selected in-
put status?
Bad
No
Yes
Yes
One input?
Multiple
Inputs
Yes Yes
One input?
Multiple
Inputs
All inputs with
same value?
Yes
Propagate input
substatus as is
Figure 4-16. Input Selector Block Substatus Propagation
STATUS_OPTS
Yes
Uncertain if Man
Mode?
No
Propagate
Nonspecific
Yes
No
Propagate Bad,
Out of Service
Propagate
Uncertain
Propagate Good
Noncascade
Propagate Bad,
Nonspecific
Propagate Good
Noncascade
Propagate Bad,
Nonspecific
Propagate input
substatus as is
Propagate
Nonspecific
December 2009