PLC Hardware and Programming - Allen-Bradley Platforms (NTH U)

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This is a companion book to PLC Hardware and Programming Multi-Platform (NTH U). It is assumed that the reader is familiar with basic instructions like bit logic, timers and counters.

This book covers the Allen-Bradley RSLogix 500 and Studio 5000 platforms. It provides information on the hardware and software for both, including communication setup using RSLinx. A list of the platform instruction set is included for both.

The RSLogix 500 section discusses the file and data structure of the platform and gives examples of different routines. All of the programming exercises from the Multi-Platform book are answered using RSLogix 500 code. Examples of input and output structures, sequences and faults are provided, as well as a description of machine vs. process control.

The RSLogix 5000 section describes tasks, programs and routines, providing examples of various common system functions for mode control. Arrays, UDTs and AOIs are covered, and a variety of examples are provided for different types of routine. Aliasing and mapping are also described with examples. Several auto sequencing techniques are included, along with recipe and part tracking examples. The final section covers machine simulation coding.