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22 Applied Instructions (External Device)
22.3 RD3A / Read form Dedicated Analog Block
571
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
21
Applied Instructions
(Real Time
Clock Control)
22
Applied Instructions
(External Device)
23
Applied Instructions
(Extension
Function)
24
Applied Instructions
(Others)
25
Applied Instructions
(Block Data
Operation)
26
Applied Instructions
(Character
String Control)
27
Applied Instructions
(Data Operation 3)
28
Applied Instructions
(Data Comparison)
29
Applied Instructions
(Data Table
Operation)
30
Applied Instructions
(External Device
Communication)
22.3 RD3A / Read form Dedicated Analog Block
Outline
This instruction reads an analog input value from the analog block FX0N-3A or FX2N-2AD.
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
RD3A 16 bits Continuous RD3A(EN,m1,m2,d);
RD3AP 16 bits Pulse RD3AP(EN,m1,m2,d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Special block number
•FX1N, FX1NC, FX2N, FX2NC, FX3G, FX3GC, FX3U and FX3UC (D, DS, DSS)
series PLCs: K0 to K7
•FX3UC-32MT-LT (-2) series PLC: K1 to K7
ANY16
Analog input channel ANY16
Output
variable
ENO Execution state Bit
Word device storing the read data 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
V Z Modifier K H E
"
"
P
zzzzzzz
S1
zz z zz
zzzzzzz
S1
zz z zz
zzzzzz
S1
zz z
RD3A
EN
m1
m2
ENO
d
RD3AP
EN
m1
m2
ENO
d