Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual page 535

3. Instructions
Function
PWR(840) raises the 32-bit floating-point number in B+1 and B to the power of the 32-bit floating-point
number in E+1 and E. In other words, PWR(840) calculates XY (X = B+1 and B; Y = E+1 and E).
Exponent data
E+1 E
B+1
B R+1
R
Base data
For example, when the base words (B+1 and B) contain 3.1 and the exponent words (E+1 and E)
3
contain 3, the result is 3.1 or 29.791.
3
CS/CJ/NSJ Series Instructions Reference Manual (W474) 499