Common Logarithm Operation On Floating-Point Data (Double Precision Log10D(P)) - Mitsubishi MELSEC Q Series Programming Manual

7.12.26
Common logarithm operation on floating-point data
(Double precision) (LOG10D(P))
LOG10D(P)
LOG10D
LOG10DP
Settiing
Data
S
D
Function
(1) This instruction obtains the value specified by
10),and then stores the operation result into the device specified by
(2) Only positive values can be specified by
numbers.)
(3) If the value resulted from the operation is
processed as 0.
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.
Command
Command
: Data of which the common logarithm is obtained or head number of the devices where the data are stored
S
(real number)
: Head number of the devices where the operation result will be stored (real number)
D
Internal Devices
R, ZR
Bit Word
––
––
Log
S S S
＋3 ＋2 ＋1
10
64-bit floating-point
data type real number
High
Basic
performance
LOG10D
LOG10DP
J \
U \G
Bit Word
––
––
for common logarithm (logarithm with base
S
S D D D
＋3 ＋2
64-bit floating-point
data type real number
. (Operation cannot be performed on negative
S
0 or an underflow occurs, the result will be
LOG10D(P)
Ver.
Process
Redundant Universal LCPU
S D
S D
Constants
Zn Other
K, H
––
*1
–– ––
*1: Available only for real number.
.
D
D
＋1
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