Omron CJ - INSTRUCTIONS User Manual

499
3. Instructions
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Floating-point Math Instructions
3
LOG
Function
LOG(468) calculates the natural (base e) logarithm of the 32-bit floating-point number in S+1 and S and
places the result in R+1 and R.
The constant e is 2.718282.
The following diagram shows the relationship between the input data and result.
R+1 R
S
S+1
Source (32-bit floating-point data)
Result (32-bit floating-point data)
log
e
R
S: Input data
R: Result

Omron CJ - INSTRUCTIONS Specifications

General

Category	Controller
Manufacturer	Omron
Type	PLC
Series	CJ Series
Instruction Types	Bit, Compare, Data Control, Data Processing
Programming Languages	Ladder Diagram (LD), Structured Text (ST), Function Block Diagram (FBD), Sequential Function Chart (SFC)