Multiplying Single-Precision Real Numbers - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Multiplying single-precision real numbers

DEMUL(P)
These instructions multiply the single-precision real number in the device specified by (s2) to the single-precision real number
in the device specified by (s1), and store the result in the device specified by (d).
Ladder diagram
(s1)
FBD/LD
EN ENO
s1 d
s2
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) Multiplicand data or head device number where the data to
be multiplied by another is stored
(s2) Multiplier data or head device number where the data by
which another is to be multiplied is stored
(d) Head device number for storing the operation result
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(s1)

(s2)

(d)
Processing details
• These instructions multiply the single-precision real number in the device specified by (s2) to the single-precision real
number in the device specified by (s1), and store the result in the device specified by (d).
(s1)+1 (s1)
Single-precision real number Single-precision real number Single-precision real number
• When the constant (K or H) is specified in (s1) and (s2), these instructions convert values into single-precision real number
automatically.
(s1)+1 (s1)
Single-precision real number
8 APPLICATION INSTRUCTION

498

8.9 Real Number Instruction
(s2) (d)
Word
T, ST, C, D, W,
SD, SW, R



(s2)+1 (s2)

[ K2346 ]

Converted into a single-precision
real number automatically.
Structured text
ENO:=DEMUL(EN,s1,s2,d);
ENO:=DEMULP(EN,s1,s2,d);
Range
-126 128
|(s1)|2
0, 2
-126 128
|(s2)|2
0, 2



Double word Indirect
U\G Z LC
  
  
  
(d)+1 (d)
(d)+1 (d)
Single-precision real number
Data type
Single-precision real number
Single-precision real number
Single-precision real number
Bit
Bit
Constant
specification
LZ K, H
  
  
  
Data type (label)
ANYREAL_32
ANYREAL_32
ANYREAL_32
BOOL
BOOL
Others
E $
  
  
  