Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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6 BASIC INSTRUCTIONS
6.6 Data Conversion Instructions
Combining data in units of bytes
BTOW(P)
These instructions combine the lower 8 bits of 16-bit binary data in units of words.
■
Execution condition
Setting data
■ Description, range, data type
*1 When specifying setting data by using a label, define an array to secure enough operation area and specify an element of the array
label.
■
Applicable devices
Ladder ST
ENO:=BTOW(EN,s,n,d);
ENO:=BTOWP(EN,s,n,d);
FBD/LD
Instruction Execution condition
BTOW
BTOWP
Operand Description Range Data type Data type (label)
(s) Start device where the combination target data is stored

16-bit signed binary ANY16
*1
(d) Start device for storing the combined data

16-bit signed binary ANY16
*1
(n) Number of data bytes to be combined 0 to 65535 16-bit unsigned 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 $
(s)            
(d)            
(n)
           
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(s) (d) (n)
EN ENO
s d
n