Exponentiation Operation On Floating-Point Data (Single Precision) (Powd(P)) - Mitsubishi MELSEC Q Series Programming Manual

POWD(P)
7.12.18
Exponentiation operation on floating-point data
(Single precision) (POWD(P))
POWD(P)
POWD
POWDP
Setting
Data
S1
S2
D
Function
(1) This instruction raises the 64-bit floating-point data type real number specified by
number nth specified by
specified by
(2) The following shows the values to be specified by and stored into
-1022
0, 2
(3) If the value resulted from the operation is
processed as 0.
7-284
Command
Command
: Exponentiation recipient data or head number of the devices where the exponentiation recipient data are
S1
stored (real number)
: Exponentiation data or head number of the devices where the data are stored (real number)
S2
: Head number of the devices where the operation result will be stored (real number)
D
Internal Devices
R, ZR
Bit Word
––
––
––
power, and then stores the operation result into the device
S2
.
D
S2 ＋3 S2 ＋2 S2 ＋1 S2
＋3 ＋2 ＋1
S1 S1 S1 S1
Exponentiation recipient data
S1 ＋3 ＋2 ＋1 S1 × S1
S1 S1
S1 ＋3 S1 ＋2 S1 ＋1 S1
64-bit floating-point data type real number
| Set values (Storage values) | < 2
High
Basic
performance
QnU(D)(H)CPU: The serial number (first five digits) is "10102" or later.
QnUDE(H)CPU: The serial number (first five digits) is "10102" or later.
POWD
POWDP
J \
U \G
Bit Word
––
––
––
Exponentiation data
D ＋3 D ＋2 D ＋1
＋3 S1 ＋2 ＋1 × ......... ×
S1 S1
raised to the power of S2 ＋3 S2 ＋2
64-bit floating-point data type real number
1024
0 or an underflow occurs, the result will be
Ver.
Process
Redundant Universal
S 1 S2 D
S 1 S2 D
Constants
Zn
E
––
*1
––
*1
–– ––
*1: Available only for real number
S1
D
S1 ＋3 S1 ＋2 S1 ＋1 S1
S2 ＋1 S2 is carried out.
or
S1 S2
LCPU
Other
––
––
––
to the