![Emerson Fisher FIELDVUE DVC6000f Instruction Manual Download Page 165](http://html.mh-extra.com/html/emerson/fisher-fieldvue-dvc6000f/fisher-fieldvue-dvc6000f_instruction-manual_102337165.webp)
ISEL Function Block
December 2009
4-105
START
SELECT_TYPE
Middle?
Yes
No
SELECT_TYPE
Maximum?
SELECT_TYPE
Minimum?
More than 1
input?
Yes
All inputs with
same limit
status?
Yes
Propagate that
limit status
Input a
constant?
Propagate
Not Limited
No
Propagate
Constant
No
Yes
No
Yes
No
Input a
constant?
Propagate
Low Limit
Propagate
High Limit
Input a
constant?
Yes
SELECT_TYPE
First Good or Hot
Spare?
No
No
No
SELECT_TYPE
Average?
All inputs with
same limit
status?
Propagate
Not Limited
Yes
Yes
No
No
1
1
NOTES:
LIMIT MANIPULATION FOR A CONSTANT INPUT FOR MAXIMUM AND MINIMUM IS BASED UPON THE FOUNDATION FIELDBUS SPECIFICATION.
THE REASONING IS BASED ON HIGH SELECT PROVIDING A LOW LIMIT STATUS AND LOW SELECT PROVIDING A HIGH LIMIT STATUS.
1
Yes
Yes
Figure 4-15. Input Selector Block Limit Propagation
Propagate
selected input
limit status
OP_SELECT
equal to zero?
Yes
No
Propagate
selected input
limit status
No
Yes
Illegal Select Type
should never be reached
4
Summary of Contents for Fisher FIELDVUE DVC6000f
Page 54: ...DVC6000f Digital Valve Controllers December 2009 2 30 2 ...
Page 62: ...DVC6000f Digital Valve Controllers December 2009 4 2 4 ...
Page 127: ...Transducer Block December 2009 4 67 4 ...
Page 141: ...AO Function Block December 2009 4 81 4 ...
Page 207: ...MAI Function Block December 2009 4 147 4 ...
Page 219: ...DO Function Block December 2009 4 159 4 ...
Page 231: ...DI Function Block December 2009 4 171 4 ...
Page 302: ...DVC6000f Digital Valve Controllers December 2009 8 16 8 ...
Page 306: ...DVC6000f Digital Valve Controllers December 2009 A 4 A ...
Page 350: ...DVC6000f Digital Valve Controllers December 2009 E 6 E ...
Page 368: ...DVC6000f Digital Valve Controllers December 2009 F 18 F ...
Page 372: ...DVC6000f Digital Valve Controllers December 2009 Glossary 4 Notes G Glossary ...
Page 382: ...DVC6000f Digital Valve Controllers December 2009 Index 10 F Index ...