L9E_ANLOG: Base 10 Antilogarithm
(Original Document)
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Naming
Name in LL984 Editor
Function Block Name
name of legacy 984 instruction
name in other tools and editors like:
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Function Description
The L9E_ANLOG DFB performs the base 10 antilogarithm function on an integer value and stores the result in an array.
Representation
Parameters
Input Pin
Name
Data Type
Address Range
Meaning
Top
ENABLE
BOOL
–
ON = enables antilog(x) operation
Node
Node Type
Name
Data Type
Address Range
Meaning
Top
IN
VALUE1
UINT
%IW, %MW
source value
VALUE1 stores the value on which the antilog calculation will be performed). The source value is stored in a single word in the fixed decimal format 1.234. It must be in the range of 0 through 7999, representing a source value up to a maximum of 7.999.
Middle
IN/OUT
RESULT
ARRAY[1...2] OF UINT
%MW
result
The result of the antilog calculation is posted in the fixed decimal format 12345678.The most significant bits are posted in word 1 and the least significant bits are posted in word 2. The largest antilog value that can be calculated is 99770006 (9977 posted in word 1 and 0006 posted in the word 2).
Output Pin
Name
Data Type
Address Range
Meaning
Top
OUT
BOOL
–
ON = operation successful
Middle
ERR
BOOL
–
ON = an event or value out of range