EXP

Owned by CIMON (Unlicensed)
Jul 07, 2023
2 min read

EXP, EXPP

 

EXP instruction computes the natural log of the source and saves the result to the Destination.

(It supports only in XP and PLC-S CPU series)

 

S

Source

D

Destination

 

Instruction

Device address

No. of Steps

Flag

M

X

Y

K

L

F

T

C

S

Z

D

@D

Int.

 

Error

Zero

Carry

EXP

EXPP

S

o

o

o

o

o

-

-

-

-

o

o

o

-

3

o

-

-

D

o

-

o

o

o

-

-

-

-

o

o

o

-

 

When enabled, the EXP instruction calculates the natural log of source and saves the result in Destination.

 

 

  • The natural log (e) is 2.71828.

  • The source must be greater than zero.

 

Example)

If D100 is greater than 0, M00 will be turned ON.

If M00 is ON, the FLT instruction converts D100 to float value and saves its result to D90.

The EXP instruction calculates the natural log of D90 and saves its result in D80.