Delta CP2000 Series, User Manual

Page: 771 / 868

Chapter 16 PLC Function Applications
│
CP2000
16-88
API
EXP
Binary floating point number obtain exponent
124
D P
Bit device Word device
16-bit command
－ － － －
32-bit command (9 STEP)
DEXP Continuous
execution type
DEXPP Pulse
execution type
Flag signal: none
X Y M K H KnX KnY KnM T C D
S
＊ ＊ ＊
D ＊
Notes on operand usage:
Please refer to the function specifications table for each device in
series for the scope of device usage
 S : operation source device. D : operation results device.
 Taking e =2.71828 as a base, S is the exponent in the EXP operation.

[ D +1
，
D ]=EXP
[
S +1
，
S
]
 Valid regardless of whether the content of S has a positive or negative value. The
designated register D must have a 32-bit data format. This operation is
performed using floating-point numbers, and
S must therefore be converted to a
floating point number.

Content of operand D =e
S
; e=2.71828, S is the designated source data
 When M0 is On, the value of (D1, D0) will be converted to a binary floating point
number, which will be stored in register (D11, D10).
 When M1 is On, the EXP operation is performed on the exponent of (D11, D10);
its value is a binary floating point number stored in register (D21, D20).
M0
M1
DFLT D0 D10
DEXP D10 D20