Mitsubishi Electric FX3G SERIES Programming Manual page 256

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
2. 32-bit operation (DCML and DCMLP)
Each bit of devices specified as [
[ +1,
D D
• When a constant (K) is specified as [
• This operation is useful when a logically inverted output is required as an output from a PLC.
Command
input
FNC 14
b31
1
S
0
D
Program examples
1. When receiving an inverted input
The sequence program shown below can be written by CML instruction.
X000
X001
X002
X003
2. When four bits are specified for a device with digit specification
X000
FNC 14
CML
Y015 b14
1
S
D 0
Sign bit (0: Positive, 1: Negative)
D
Y017
K1Y000
254
S +1,
].
S
S D
DCML
b30 b29 b28 b27
0 1 0 1
Sign bit (0: Positive, 1: Negative)
1 0 1 0
M 0
M 1
M 2
M 3
M8000
FNC 14
CML
RUN monitor
S D
D 0 K1Y000
b13 b12 b11 b11
0 1 0 1 0
Y016 Y015 Y014 Y013 Y012 Y011 Y010 Y007 Y006 Y005 Y004 Y003 Y002 Y001 Y000
Do not change.
S ] is inverted (from 0 to 1 or from 1 to 0), and then transferred to
+1, S ], it is automatically converted into binary.
→
S +1, S D
b26 b25 to b7 b6
0 1 0 0
When command contact turns ON
1 0 1 1
Inverted data is transferred.
X000
X001
X002
X003
K1X000 K1M0
(D 0) → (K1Y000)
b9 b8 b7 b6
1 0 1 0
9 Move and Compare – FNC 10 to FNC 19
9.5 FNC 14 – CML / Complement
+1, D
n5 b4 b3 b2
1 1 1 0
0 0 0 1
M 0
M 1
M 2
M 3
n5 b4 b3 b2 b1
1 0 1 0 1
X000 = ON
0 1 0
Inverted data is
transferred.
b1 b0
1 0
0 1
b0
0
1