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31 Applied Instructions (Data Transfer 3)
31.1 RBFM / Divided BFM Read
729
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
31
Applied Instructions
(Data Transfer 3)
32
Applied Instructions
(High Speed
Processing 2)
33
Applied Instructions
(Extension File
Register Control)
34
Applied Instructions
(FX
3U
-CF-ADP)
35
Interrupt Function
and Pulse Catch
Function
A
Relationships
between devices
and addresses
B
Applied
Instruction List
31.1 RBFM / Divided BFM Read
Outline
This instruction reads data from continuous buffer memories (BFM) in a special function block and unit over
several operation cycles by the time division method. This instruction is convenient for reading received data,
etc. stored in buffer memories in a special function block and unit for communication by the time division
method. FROM instruction is also available to read the buffer memory (BFM) data.
→ For FROM instruction, refer to Section 14.8.
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
RBFM 16 bits Continuous BFM(EN,m1,m2,n1,n2,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Unit number [0 to 7] ANY16
Head buffer memory (BFM) number ANY16
Number of all buffer memories (BFM) to be read [1 to 32767] ANY16
Number of points transferred in one operation cycle [1 to 32767] ANY16
Output
variable
ENO Execution state Bit
Head device storing data to be read from buffer memory (BFM) ANY16
Operand
type
Bit Devices Word Devices Others
System user Digit specification
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
VZModifierKH E
""
P
zz zz
zz zz
zz zz
zz zz
S1
zz
RBFM
EN ENO
m1
m2
n1
n2
d