Mitsubishi MELSEC iQ-F FX5 series - Calculating the Square Root of 16-Bit Data

572
7 APPLICATION INSTRUCTION
7.17 Data operation instruction
Calculating the square root of 16-bit data
SQRT(P)
These instructions calculate the square root of binary 16-bit data specified by (s1), and store the operation result in (d).
Setting data
■Descriptions, ranges, and data types
■Applicable devices
Processing details
• These instructions calculate the square root of binary 16-bit data specified by (s1), and store the operation result in (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
Ladder diagram Structured text
ENO:=SQRT(EN,s,d);
ENO:=SQRTP(EN,s,d);
Operand Description Range Data type Data type (label)
(s) Device where the data whose square root is operated is
calculated
 16-bit signed binary ANY16
(d) Device for storing the calculated square root  16-bit signed binary ANY16
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s)       
(d)       
Error code
(SD0/SD8067)
Description
3405 In (s), a negative value is specified.
(s) (d)

(s)
(d)