Mitsubishi Electric MELSEC iQ-R Series - Calculating the Square Root of BCD 4-Digit Data

7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
827
7
Calculating the square root of BCD 4-digit data
BSQRT(P)
These instructions calculate the square root of the value specified by a BCD 4-digit data.
■Execution condition
Setting data
■Descriptions, ranges, and data types
■Applicable devices
Processing details
• These instructions calculate the square root of the BCD 4-digit data specified by (s), and store the operation result in the
device specified by (d).
• The value to be specified in (s) is a BCD value with a maximum of 4 digits (0 to 9999).
• A BCD value from 0 to 9999.9999 is stored as the operation result in the device specified by (d).
• The operation result is a value whose 5th decimal place is rounded down.
Ladder ST
ENO:=BSQRT(EN,s,d);
ENO:=BSQRTP(EN,s,d);
FBD/LD
Instruction Execution condition
BSQRT
BSQRTP
Operand Description Range Data type Data type (label)
(s) Data used for square root operation, or the device
containing the data
0 to 9999 BCD 4-digit ANY16
(d) Start device for storing the operation result  BCD 4-digit ANY16_ARRAY
(Number of elements: 2)
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s)         
(d)         
(d): Integral part
(d)+1: Decimal part
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s) (d)
EN ENO
ds
.
(d) (d)+1
=(s)