This section explains how to describe a logic program using
IL.
Instruction Name
Description
illustration
SOR
Indicates a starting point of a circuit.
From an SOR to the next SOR is one circuit.
Frame A
BS
Indicates a starting point of a branch.
The section from BS to B is the upper portion
of the branch in the ladder configuration.
Frame B
B
Indicates a branch (lower portion).
The section from B to BE is the lower portion
of the branch in the ladder configuration.
Frame C
BE
Indicates an ending point of a branch.
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Inserting Rungs/Instructions
Select the first rung (MAIN START).
Click the icon . An SOR (Circuit
Starting Point) is inserted into the rung next to the MAIN START,
and then a box for adding an instruction is displayed.
An SOR (Circuit Starting Point) can also be
inserted using the icon or right-click
menu as shown below.
You can insert the instruction using the icon
or typing the
instruction name.
Allocate a symbol variable to [Operand 1] for the
instruction.
Inserting Branches
Select the instruction (NO instruction) to insert
the branch.
Click the icon . BS, B and BE are
inserted.
The sections from BS to B and from B to BE are the upper portion
and lower portion of the branch, respectively, in the ladder
configuration.
A BS (Branch Starting Point) can also be
inserted using the icon or right-click
menu as shown below.