Fnc 41 - Deco / Decode - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
12.2 FNC 41 – DECO / Decode
Outline
This instruction converts numeric data into ON bit.
A bit number which is set to ON by this instruction indicates a numeric value.
1. Instruction format
FNC 41
DECO P
2. Set data
Operand type
S
S
1
D
n
3. Applicable devices
Bit Devices
Oper-
System User
and
Type
X Y M T C S D .b KnX KnY KnM KnS T
S S
1
S D
2
n
: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (DECO and DECOP)
D D
One bit among
is a bit device (1 ≤ n ≤ 8)
D D
1) When
1
The numeric value (expressed in 2
-When all bits of
-When "n" is "8", 2
Command
input
FNC 41
When it is Y, M or S
Up to Up to
...
M255 M127
M255
Up to 256 bits (The number of occupied bits varies depending on the specified "n" value.)
Series
Mnemonic
16-bit Instruction
7 steps DECO
DECOP
Data to be decoded or word device number storing data
Bit or word device number storing the decoding result
Number of bits of device storing the decoding result (n = 1 to 8)
(No processing is executed in the case of "n = 0".)
Digit Specification
/FX
3U 3UC
n
− 1 is set to ON according to the
D D
to +2
1 1
n , 1 ≤ n ≤ 8) of a device specified by
D S
are "0", the bit device
1
8
points (= 256 bits which is the maximum value) are occupied.
S D
DECO
(1 ≤ n ≤ 8)
Ignored
b15 b14 b13 b12
Up to Up to
... ...
M63 M31
0 1
M15 M14
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
C D R U \G V
PLCs.
D S
value.
1
D D
turns ON.
1
n
8 bits
b11 b10 b9 b8 b7 b6 b5 b4
0 0 0 0 1 1 1 0
K8 K7 K6 K5
0 0 0 0 0 0 0 0 0
M9 M8 M7 M6 M5
M13 M12 M11 M10
12 Data Operation – FNC 40 to FNC 49
12.2 FNC 41 – DECO / Decode
Mnemonic Operation Condition
−
−
Data type
16-bit binary
16-bit binary
16-bit binary
Others
Con- Real Charac-
Index
stant Number ter String
Z Modify K H E " "
D S is decoded to D D .
1 1
When "n" is "8"
b3 b2 b1 b0
S
When is D0
← 2
n
← n
K4 K3 K2 K1
Turns ON when all
S
bits of are OFF.
0 0 0 0 0 When D
M4 M3 M2 M1 M0
11
12
13
14
Pointer
15
P
16
17
18
19
is M0
20
313