Reading 1-Word/2-Word Data From Another Module - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Reading 1-word/2-word data from another module

FROMD(P), DFROMD(P)
• FROMD(P)
These instructions read (n) words of data from the buffer memory specified by (s) in intelligent function module specified by
(U/H), and store the data to the device specified by (d) and later.
• DFROMD(P)
These instructions read the (n)  2 words of data from the buffer memory specified by (s) in intelligent function module
specified by (U/H), and store the data to the device specified by (d) and later.
Ladder diagram
(U/H) (s)
FBD/LD
EN ENO
UnHn d
s
n
Setting data
■Descriptions, ranges, and data types
Operand Description

*1

(U/H) Unit number
(s) Start address of the buffer memory where the read-target data
is stored
(d) FROMD(P) Head device number for storing the read data
DFROMD(P)
(n) Number of read data
EN Execution condition
ENO Execution result
*1 In the case of the ST language and the FBD/LD language, U/H displays as UnHn.
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(U/H)

(s)
(d) 

(n)
*1 Only the DFROMD(P) instruction can be used.
8 APPLICATION INSTRUCTION
726
8.26 Module Access Instruction
(d) (n)
Word
T, ST, C, D, W, U\G
SD, SW, R
 
 
 
 
Structured text
ENO:=FROMD(EN,UnHn,s,n,d);
ENO:=FROMDP(EN,UnHn,s,n,d);
ENO:=DFROMD(EN,UnHn,s,n,d);
ENO:=DFROMDP(EN,UnHn,s,n,d);
Range Data type
H1 to H10 16-bit unsigned binary
0 to 4294967295 32-bit unsigned binary

16-bit signed binary
32-bit signed binary
1 to 65535 32-bit unsigned binary
 Bit

Bit
Double word Indirect
specification
Z LC LZ
   
   
*1 *1
   
   
Data type (label)
ANY16
ANY32
ANY16
ANY32
ANY32
BOOL
BOOL
Constant Others
(U)
K, H E $
   
   
   
   