Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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1054
7 APPLICATION INSTRUCTIONS
7.27 Module Access Instructions
Reading 1-word/2-word data from another module (32-bit
specification)
FROMD(P), DFROMD(P)
• FROMD(P):
These instructions read n words of data from the buffer memory address in the specified module or another CPU module.
• DFROMD(P):
These instructions read n

2 words of data from the buffer memory address in the specified module or another CPU module.
■
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.
Ladder ST
ENO:=FROMD(EN,U/H,s,n,d);
ENO:=FROMDP(EN,U/H,s,n,d);
ENO:=DFROMD(EN,U/H,s,n,d);
ENO:=DFROMDP(EN,U/H,s,n,d);
FBD/LD
Instruction Execution condition
FROMD
DFROMD
FROMDP
DFROMDP
Operand Description Range Data type Data type (label)
(U/H) Start I/O number (first three digits in four-digit
hexadecimal representation) of a module or CPU
module 0H to FFH, 3E0H to 3E3H 16-bit unsigned binary ANY16
(s) Buffer memory from which the data is read or the
start device where the start address of the CPU
memory is stored 0 to 4294967295 32-bit unsigned binary ANY32
(d) FROMD(P) Start device for storing the data that has been
read  16-bit signed binary ANY16
*1
DFROMD(P) 32-bit signed binary ANY32
*1
(n) Number of read data 0 to 4294967295 32-bit unsigned binary ANY32
EN Execution condition

Bit BOOL
ENO Execution result  Bit BOOL
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(U/H) (s) (d) (n)
EN ENO
d U/H
s
n