Calculating The Square Root Of 32-Bit Data - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Calculating the square root of 32-bit data

DSQRT(P)
These instructions calculate the square root of binary 32-bit data specified by (s1), and store the operation result in (d).
Ladder diagram
(s) (d)
FBD/LD
EN ENO
s d
Setting data
■Descriptions, ranges, and data types
Operand Description
(s) Device where the data whose square root is operated is
calculated
(d) Device for storing the calculated square root
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(s)
(d) 
Processing details
• These instructions calculate the square root of binary 32-bit data specified by (s1), and store the operation result in (d).

(s)+1, (s) (d)+1, (d)
Precautions
• The obtained square root is an integer because the decimal point is ignored. When the calculated decimal value is ignored,
SM8021 (borrow flag) turns on.
• When the operation result is true 0, SM8020 (zero flag) turns on.
Operation error
Error code Description
(SD0/SD8067)
3405H In (s), a negative value is specified.
Word
T, ST, C, D, W, U\G
SD, SW, R
 
 
Structured text
ENO:=DSQRT(EN,s,d);
ENO:=DSQRTP(EN,s,d);
Range Data type

32-bit signed binary

32-bit signed binary

Bit

Bit
Double word Indirect
specification
Z LC LZ
   
   
Data type (label)
ANY32
ANY32
BOOL
BOOL
Constant Others
K, H E $
   
   
8 APPLICATION INSTRUCTION
8.22 Data Operation Instruction
8
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