VA Motion Controller Programming Manual
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5.3 programming model with standard IEC61131-3
1) The MULTIPROG programming software used by the VA motion controller has a
programming language and program structure in accordance with the IEC 61131-3 programming
system. In IEC 61131-3, the establishment of programs and projects is done in the Program
Organization Unit (POU). The unit POU consists of three parts: PROGRAM,
FUNCTIONBLOCK and FUNCTION. It replaces the five functional blocks OB, PB, DB, SB and
FB of the traditional PLC programming language. More efficient and more concise as shown.
2) IEC 61131-3 programming software model is represented by a hierarchical structure, as
shown below, the software model describes the relationship between the various parts, including
the configuration, resource, task, program organization unit, global variables, I / O configuration,
etc. . Programming process can program a complex program, or divided into a number of small
modules can also be simultaneously downloaDA plurality of separate programs, running, or the
program into a plurality of tasks to perform, improve the modularity and operational procedures
efficiency as shown.
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