Yaskawa MP900 Series Machine Controller for Standard Operation - Manual (Page 410)

7.3 Creating Ladder Logic Programs
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7
limit setting or the register for counting.
„ Series Connections
When connection points or parallel connections have not been stipulated, the next contact
will be connected in series and the cursor will move to the right from the current instruction
position. Contacts will be connected in series whether or not there is branching. There is no
limit to the number of contacts.
When the series connection extends across one line, as shown in the following diagram, the
input position for the next instruction will automatically appear at the start of the next line.
„ Creating Complicated Circuits
Complicated sequence circuits, such as the one shown in the following diagram, can be cre-
ated by setting branches, connection points, and parallel connections.
The procedure (steps 1 to 24) for creating the sequence circuit shown in the above diagram is
outlined in the following table.
Step Instruction Branch or Connection Selection Operand Input
1 N.O. CONTACT Connection point MB000000
2 N.O. CONTACT Parallel connection MB000001
1 0000 IB00000 IB00001 IB00002 IB00003 IB00004
1 0005 IB00004 OB00000
End of the line
Continuation
1 0013
1 0016
IB00100 MB000300
DB000001 MB000301
DB000000
1 0000 MB000000 IB00000
MB00000A MB00000B 1 0001 OB00001
OB00000
DATA1
IB00001
MB000002 MB000003 1 0004 OB00002 MB000010 MB000011
MB000001
DATA1
1 0018 IB00101 OB00100
1 0021 IB00102
005.00
[
T
]
MW00102
IB00103 1 0023 OB00101