7 APPLICATION INSTRUCTION
7.21 Module access instruction
613
7
Reading 1-word/2-word data from another module
FROMD(P), DFROD(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)/DFROD(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.
■Descriptions, ranges, and data types
■Applicable devices
*1 Only the DFROD(P) instruction can be used.
Ladder diagram Structured text
ENO:=FROMD(EN,UnHn,s,n,d);
ENO:=FROMDP(EN,UnHn,s,n,d);
ENO:=DFROD(EN,UnHn,s,n,d);
ENO:=DFRODP(EN,UnHn,s,n,d);
Operand Description Range Data type Data type (label)
(U/H) Unit number H1 to H10 16-bit unsigned binary ANY16
(s) Start address of the buffer memory where the read-target data is
stored
0 to 4294967295 32-bit unsigned binary ANY32
(d) FROMD(P) Head device number for storing the read data 16-bit signed binary ANY16
DFROD(P) 32-bit signed binary ANY32
(n) Number of read data 1 to 65535 16-bit unsigned binary ANY16
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(U/H)
(s)
(d)
*1
*1
(n)
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