Or, Or1 - Mitsubishi Electric melsec-k Programming Manual

4-3. Sequence instructioias
The instruction functions must be understood at the time
of programming.
Programming can be executed with electromagnetic relay
symbols as well as logic symbols.
4-3-1. AND, ANI
. e *
Series connection operation
AND has the operation function for series connection of
the contact a, and ANI has the operation function for
series connection for the contact b.
Both execute the series connection operation (AND) for
the previous operation results.
The figure shows the AND operation, and the operation
of
X3 with the bold line is indicated as
At this time, the X3 operation is executed with XO, and the
X O X3 operation is executd by the instruction AND X3. In
this case, X O is the operation result up to this time. Also,
the XO part has a series connection, but as there is no
operation result before XO, LD X O is obtained instead of.
AND XO.
1 AND X3
/ '
The figure shows the ANI operation, and the operation of
Y75 with the bold line is indicated as
At this time, the Y75 operation is executed with X9, and
the X9 Y75 operation is executed.
This operation takes the inversion of the specified number
(contact a becomes contact b), and then series connection
operation is executed.
16 ANI Y75
- .
4-3-2.
OR9 QRI
...
Parallel connection Operation
OR has the operation function for parallel connection
of
contact a, and OR1 has the operation function .for parallel
connection of contact b.
Both execute the parallel connection operation (OR) with
the previous operation result.
In the figure, the connection of the bold line of X26
becomes
QW,
and it is indicated as
21 OR X26
With this operation, X5 is the previous operation result,
and the operation X5
+
X26 is executed.
/ \
Fig.
4-1.
Symbols
for
'AND and ANI
8
. .
Y19
=
xo
x3
Fig. 4-2. AND operation
y'pjj
-zxg
s
k'n
Fig. 4-3. ANI operation
Fig. 4-4. Symbols for OR and OR1
Y105
=
X5
+
X26
Fig. 4-5. OR operation
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