Vigor VS Series - Page 273

267
D E X P P
S
D
1
2
M
3
○○○
FNC
124
X Y M S
D.b R.b
KnX KnY
KnM KnS
T C
D,R
V,Z
UnG
K,H
E
" $"
S
D
DEXPP D0 D10
X0
S
D
S
D
○
Operand
Devices
BIN Floating Point Number Exponent
e
2.1
8.166167
=
(D1, D0) BIN floating number
(D10, D11) BIN floating number
S : the source device of the exponent at the function
D : the destination device to store the exponent result
This instruction performs the exponential function on a BIN oating point number that is designated by and
stores the BIN oating point format result in the designated device.
When X0 = “OFF” → “ON”, by way of the BIN oating point number in (D1, D0) as the exponent to perform the
exponential function, and the result will be stored in (D11, D10).
This instruction based on the constant base e = 2.71828 to perform the exponential function.
This instruction is a 32-bit instruction. Therefore, be sure to input DEXP or DEXPP in the program.
S
The source operand must assign to a BIN oating point number for the calculation.
The format for storing a oating point number will occupy two Registers in the PLC system. Please refer to the
section 2-13 “Numerical System” for the reference of the oating point number.
D
128 -126
If the absolute value of the result is larger than 2 or less than 2 , the PLC will regard that as an operational
error.