IEC 1131-3 is the international standard for industrial control system software design, defining a set of graphical and textual languages that offer significant benefits throughout the control system lifecycle for system integrators, engineers, and end-users. The standard marks a shift toward well-structured, reusable, and maintainable software in industrial control.
This updated edition incorporates all proposed amendments and corrections for the 1999 version of IEC 1131-3, as agreed by the IEC working group in 1998. It now includes a section on frequently asked questions, a summary of future developments for PLC languages, and an overview of the IEC 1499 standard on function blocks.
While primarily focused on programmable logic controllers (PLCs), the concepts in IEC 1131-3 also influence software design for fieldbus devices. The book introduces all key concepts of the standard and provides language examples for typical industrial control problems. It is valuable for anyone involved in specifying or developing industrial or manufacturing software, as well as for students and engineers interested in new techniques for industrial control systems.
