Filter
Top Products
Motion Programming
Local Logic
GFK-1918D CIMPLICITY Logic Developer - PLC Version 4.00 95
LOCAL LOGIC
A Local Logic program runs synchronously with the Motion program, but is
independent of the PLC’s CPU scan. This allows the DSM314 to interact much
more quickly with motion I/O signals on its faceplate connectors than would be
possible if the logic for the signals was handled in the main ladder program
running on the PLC.
Local Logic language uses free-form, text-based circuits and contains basic
mathematical and logical constructs. Local Logic programming syntax allows you
to assign a variety of logic tasks to your motion programs while working in
conjunction with PLC Logic programs and motion programs to yield a flexible
programming environment. Because it uses straightforward, understandable
syntax, it is easy to gain proficiency with this editor.
The Local Logic programming language supports assignments, conditional
statements, arithmetic, logical and relational statements. Local Logic provides the
user access to motion controller data, parameters using a fixed set of variables,
control and status bits.
■
Parameter data - accessible from Local Logic host PLC and motion programs.
The parameter data are similar to variables in a program.
■
CTL bits - allow the Local Logic program or host PLC to signal the motion
program to start an event.
■
Motion program block numbers - the current block number can be used within
the Local Logic program or host PLC to make an action occur only during a
specific motion programming section.
To create a Local Logic block
1. In the Projects tab of the Navigator, right-click the Local Logic folder and choose New.
A new Local Logic block with a default name is created.
2. Rename the block as required.
To open a Local Logic block for editing
• In the Projects tab of the Navigator, right-click the Local Logic block and choose Open.
The Local Logic block opens in the Local Logic editor and is ready for editing.
Navigator: Project tab
Local Logic