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API
DECO
41
D
P
Bit device
X
Y
M
K
S
*
*
*
*
D
*
*
n
*
Notes on operand usage: none
S
n
Decodes with the lower "n" bit, and saves the length of "2
This command usually uses pulse execution type command (DECOP).
When D is the bit device, n = 1–8, when D is the word device, n = 1–4.
When Dis the bit device, the valid range of n is 0< n ≦8. If n = 0 or n > 8, a fault
will occur.
When n = 8, the maximum decoding will be 2
When M200 switches from Off to On, the content of X0–X2 is decoded to
M100–M107.
If S = 3, M103 (the third digit starting from M100) = On.
When the command is executed, M200 turns to Off. The ones that are decoded
and outputted act as usual.
When D is word device, the valid range of n is 0< n ≦4. If n = 0 or n > 4, the fault
occurs.
When n = 4, the maximum decoding will be 2
When M200 switches from Off to On, the content of D10 (b2–b0) is decoded to
D20 (b7–b0). The unused digits (b15–b8) of D20 become 0.
The lower 3 digits of D10 are decoded and saved in the lower 8 digits of D20, the
upper 8 digits are 0.
When the command is executed, M200 turns to Off. The ones that are decoded
and outputted act as usual.
n
S
D
Word device
H
KnX KnY KnM
T
*
*
*
*
*
*
: Decoding source device.
: Length of decoding bit.
M200
DE COP
7
6
0
0
M107 M106 M105 M104 M103 M102 M101 M100
M200
DE COP
Chapter 16 PLC Function ApplicationsC2000-HS
Decoder
16-bit command (7 STEP)
DECO
Continuous
C
D
execution type
*
*
*
*
32-bit command (13 STEP)
DDECO
Continuous
execution type
Flag signal: none
D
: Device that saves the decoding result.
= 256 points.
8
X0
M100
X2
X1
X0
0
1
1
4
2
1
3
5
4
2
3
0
0
0
1
4
= 16 points.
D10
D20
16-73
DECOP
Pulse
execution type
DDECOP
Pulse
execution type
n
" bit in D.
K3
1
0
0
0
K3
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