Nematron Pointe Controller - Manual (Page 378)

Appendix C: Ladder Diagram Block Reference Pointe Controller User Guide
376
The block function is executed every time the ladder is scanned , so long as EN
remains on. If EN becomes off, then OUT remains at its last calculated value until
EN becomes on and the block function is executed again.
Configuration Reference
The parameters of this block are described in the following table:
Param Name Config Var Type Description
EN Enable no - The state of the rung (off/on)
received from the left.
ENO Enable
Out no - The state of the rung (off/on)
passed to the right.
IN Input
Value req real only*
Numeric
The input value. If a Numeric value
is manually entered, it must be real
/ floating.
OUT Output
Value req real only* The result of calculating the
natural log of the input value.
* Any 32-bit Real (F) Input, Output, or Memory tag. For more information, see “ Defining Input,
Output, Memory tags ” on page 114 .
NOTE: This function cannot process a zero or negative input value. If the input
value is zero, then the value “1.#INF00” (infinite) is placed in the output. If the
input value is negative, then the value “- 1.#QNAN0” (not available) is placed in
the output. No error is generated.
C.3.16 Exponential (EXPT)
When used in a Ladder Diagram, the EXPT block raises the base input to the
power of the exponent input and sends the result to output.
Select the tool (from the Math Blocks toolbar) and click on a ladder rung to
insert the following block:
Once the block is inserted, you can double-click on it to configure it.