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7-302
LOG10D(P)
7.12.26 Common logarithm operation on floating-point data
(Double precision) (LOG10D(P))
LOG10D(P)
*1: Available only for real number.
Function
(1) This instruction obtains the value specified by for common logarithm (logarithm with base
10),and then stores the operation result into the device specified by .
(2) Only positive values can be specified by . (Operation cannot be performed on negative
numbers.)
(3) If the value resulted from the operation is 0 or an underflow occurs, the result will be
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.
: Data of which the common logarithm is obtained 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)
Settiing
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
E
Other
Bit Word Bit Word
–– ––
*1
––
–– –– –– ––
Basic
Process
High
performance
Redundant
Ver.
Universal
LOG10DP
LOG10D
LOG10DP
LOG10D
S
D
S D
Command
Command
S
D
S
D
S
D
Log10
S S
3
S
2
S
1
D D
3
D
2
D
1
64-bit floating-point
data type real number
64-bit floating-point
data type real number
S