Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

Page: 849 / 2110

7 APPLICATION INSTRUCTIONS
7.10 Random Number Instructions
847
7
7.10
Random Number Instructions
Generating random number
RND(P)
These instructions generate a random number between 0 and less than 32767, and store the random number in the specified
device.
■
Execution condition
Setting data
■ Description, range, data type
■ Applicable devices
Processing details
These instructions generate a random number between 0 and 32767, and store the random number in the device specified by
(d). The RND(P) instruction generates random numbers according to a certain calculation expression. The calculation
expression uses the previous calculation result as a coefficient.
Operation error
There is no operation error.
Ladder ST
ENO:=RND(EN,d);
ENO:=RNDP(EN,d);
FBD/LD
Instruction Execution condition
RND
RNDP
Operand Description Range Data type Data type (label)
(d) Device for storing the random number

16-bit signed binary ANY16
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 $
(d)
           
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(d)
EN ENO
d