Mitsubishi Electronics FX3G User Manual

Page of 964
189
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
 Series
Programming Manual - Basic & Applied Instruction Edition
7 Basic Instruction
7.3 AND, ANI
1
Introdu
ction
2
Ov
ervi
ew
3
Instruction 
Li
st
4
D
evices 
in Det
ai
l
5
Specifi
ed the
De
vice
 &
 
C
onst
ant
6
Bef
ore
 
Pr
og
ra
mmi
ng
7
Bas
ic 
Instruction
8
FN
C00-FN
C0
9
Program Fl
ow
9
FNC
10-FN
C19
Mov
e & Com
pare
10
FNC
20-FNC
29
Arith. & Lo
gi
Operati
on
2. ANI instruction (serial connection of NC (normally closed) contacts)
3. Indexing
*1
Devices used in AND and ANI instruction can be indexed with index registers (V and Z).
(State relays (S), special auxiliary relays (M), 32-bit counters (C), and "D .b" cannot be indexed.)
The index registers V0 to V7 and Z0 to Z7 are
available for indexing.
When a used device is an input (X) or output (Y),
the value of an index register (V, Z) is converted
into an octal number, and then added.
Example: When the value of V0 is "10", AND
contact is set to ON or OFF by X012.
*1.
This function is supported only in FX
3U
/FX
3UC
 PLCs.
4. Bit specification of data register (D)
*1
A bit in data register (D) can be specified as a device used in AND and ANI instructions.
When specifying a bit in data register, input "."
after a data register (D) number, and then input a
bit number (0 to F) consecutively.
Only 16-bit data registers are available.
Specify a bit number as "0, 1, 2, ... 9, A, B, ... F"
from the least significant bit.
Example: In the example shown on the left, AND
contact turns ON (becomes
conductive) when the bit 3 of D0 turns
ON.
*1.
This function is supported only in FX
3U
/FX
3UC
 PLCs.
Errors
• When an I/O number used in AND or ANI instruction does not exist due to indexing, M8316 (Non-existing I/O 
specification error) turns ON.
• When the device number of a device (M, T or C) other than I/O used in AND or ANI instruction does not exist due to 
indexing, an operation error (error code: 6706) occurs.
X002
Y003
ANI instruction
Circuit program
List program
X000
LD
ANI
OUT
0000
0001
0002
X002
X000
Y003
Contact connected
in series
Timing chart
ANI instruction
LD instruction
ON
ON
ON
X002
ON
Y003
ON
ON
X000
Y003
Circuit program
List program
X000V0
LD
AND
OUT
0000
0001
0004
X002
X000V0
Y003
X002
Y003
Circuit program
List program
D0.3
LD
AND
OUT
0000
0001
0004
X002
D0.3
Y003
X002