User manual

53Publication LOGIX-AP010B-EN-P - May 2010 53
Chapter 3
Software Conversions Instructions
Introduction
The object of this chapter is to demonstrate how typical programming
instruction in S5 can be performed in RSLogix 5000 software. It examines
examples of S5 instructions in other programming languages and seeks to find
the best RSLogix equivalent in each case.
It is not advised to translate the code one on one to RSLogix 5000 software.
Some advanced, predefined instructions in RSLogix 5000 software can replace
whole parts of Step 5 code (instructions did not exist in Step 5). RSLogix 5000
software also offers more functionality such as aliasing, program/controller
tags. Therefore consider other programming techniques rather than imitating
the programming in Step 5. Optimizing code by using the standard Logix
functionality can improve the scan time substantially.
Also see Chapter 4 – Additional RSLogix 5000 Features
.