Mitsubishi Electric MELSEC FX Series - 7.8.3 DSW

7 Applied Instructions
7.8 External FX I/O Device
372
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
7.8.3 DSW
Outline
This is a command for reading in the set value of digital switch.
You can read in the data of 4 digits and 1 set (n=K1), or 4 digits and 2 sets (n=K2).
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder ST
DSW 16 bits Continuous DSW(EN, s, n, d1, d2);
Variable Description Data type
Input
variable
EN Execution condition Bit
Beginning device for connecting digital switch (X) (4Xn points occupied) Bit
Number of sets of digital switch (4 digits/1 set) [n=1 or 2] ANY16
Output
variable
ENO Execution state Bit
Beginning device of output of strobe signal (Y) (4 points occupied) Bit
Device for storing numerical value of digital switch (n points occupied) ANY16
Operand
type
Bit Devices Word Devices Others
System user Digit designation
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
zz
zz
zzz
S1 S2
zz z
zz
DSW
EN
s
n
ENO
d1
d2