Mitsubishi MELSEC-Q/L User Manual

525
POW, POWP
1
2
3
4
4
6
7
8
7.12 Special function instructions 7.12.17 POW, POWP
: Exponentiation recipient data or head number of the devices where the exponentiation recipient data are stored (real number)
: Exponentiation data or head number of the devices where the data are stored (real number)
: Head number of the devices where the operation result will be stored (real number)
*1: Available only for real number
Function
(1) This instruction raises the 32-bit floating-point data type real number specified by to the number nth specified by
power, and then stores the operation result into the device specified by .
(2) The following shows the values to be specified by and stored into or .
0, 2
-126
| Set values (Storage values) | < 2
128
(3) If the value resulted from the operation is -0 or an underflow occurs, the result will be processed as 0.
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns on, and an error code is stored into
SD0.
7.12.17 POW, POWP Exp onentiation ope ration on floa ting-point data
(Single pre cision)
7.12.17 POW, POWP
• QnU(D)(H)CPU, QnUDE(H)CPU: The serial number (first five
digits) is "10102" or later.
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
E
Other
Bit Word Bit Word
–– ––
*1
––
–– ––
*1
––
–– –– –– ––
Error
code
Error details
Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
4140
The values specified by or is not within the following range:
0, 2
-126
|Specified value (storage value)| < 2
128
The value of or is -0.
–– –– –– ––
4141
The operation result is within the following range (when an overflow
occurs):
2
128
| Operation result |
–– –– –– ––
Basic
High
performance
Process Redundant Universal LCPU
Ver.
Command
Command
POW
POWP
S1 S2
D
S1 S2
D
POW
POWP
S1
S2
D
S1
S2
D
S1
S2
D
32-bit floating-point
data type real number
32-bit floating-point
data type real number
+1
+1
+1
+1 +1
+1to th power.The instruction raises
Exponentiation recipient data
Exponentiation data
+1 +1
+1
D
D
S1
S2
S1
S2
S1
S1
S2
S1
S2
S1
S1
S1
S1
S1S1
S1
S1
S2
S1 S2
S1 S2

Mitsubishi MELSEC-Q/L Specifications

General

Brand	Mitsubishi
Model	MELSEC-Q/L
Category	Controller
Language	English