Fnc 41 - Deco / Decode - Mitsubishi FX3U Series Programming Manual

FX /FX Series Programmable Controllers
3U 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
2. Set data
Operand type
S S
1
D
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
S
1
S D
2
n
Explanation of function and operation
1. 16-bit operation (DECO and DECOP)
One bit among
1) When D D
1
The numeric value (expressed in 2
- When all bits of
- When "n" is "8" and
Command
input
When it is Y, M or S
Up to
...
M255
M255
Up to 256 bits (The number of occupied bits varies depending on the specified "n" value.)
296
Mnemonic
16-bit Instruction
P
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
n
− 1 is set to ON according to the
D D to D D +2
1 1
is a bit device (1 ≤ n ≤ 8)
n , 1 ≤ n ≤ 8) of a device specified by
D S are "0", the bit device
1
D D is a bit device, 2
1
FNC 41
S D
DECO
b15 b14
Up to Up to Up to
... ...
M127 M63 M31
0
M15
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
D D turns ON.
1
8
= 256 bits (which is the maximum value) are occupied.
n
(1 ≤ n ≤ 8)
Ignored
b13 b12 b11 b10 b9 b8 b7 b6
0 0 0 0 1 1 1 0
K8 K7
1 0 0 0 0 0 0 0
M14 M13 M12 M11 M10 M9 M8 M7
12 Data Operation – FNC 40 to FNC 49
12.2 FNC 41 – DECO / Decode
Mnemonic
32-bit Instruction
−
−
Con- Real
Index
stant Number
V Z Modify K H E
D S value.
1
D S is decoded to
1
8 bits
When "n" is "8"
b5 b4 b3 b2 b1 b0
When
← 2
n
← n
K6 K5 K4 K3 K2 K1
Turns ON when all
bits of
0 0 0 0 0 0 0 When
M6 M5 M4 M3 M2 M1 M0
Operation Condition
Data type
16-bit binary
16-bit binary
16-bit binary
Others
Charac-
Pointer
ter String
" " P
D D .
1
S
is D0
S
are OFF.
D is M0