Programming by Configuring with IEC 61499
Programming using graphical elements taken from the “real world” of the application to be programmed is becoming more and more important.
With the graphical languages LD, FBD or SFC of IEC 61131-3 previously discussed, data flow and logical execution sequence can be programmed and documented using symbols and names. However, it is also desirable to be able to display the topological distribution of programs, their general configuration and interconnections to other parts of a distributed automation project in a graphical manner. This takes place at a higher, more abstract level than the programming of POUs described so far.
The tools for configuring complex and distributed applications are called configuration editors. Program parts, such as function blocks, are combined to form larger units. This is done by interconnection of function blocks.
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- [IEC 61131-3]IEC 61131-3 Edition 2.0 (2003-01), TC/SC 65B, Programmable controllers - Part 3: Programming languages www.iec.ch
- [IEC 61499-1]IEC 61499-1 Edition 1.0 (2005-01), TC/SC 65B, Function blocks - Part 1: Architecture www.iec.ch
- [IEC 61499-2]IEC 61499-2 Edition 1.0 (2005-01), TC/SC 65B, Function blocks - Part 2: Software tool requirements www.iec.ch
- [IEC 61499-4]IEC 61499-4 Edition 1.0 (2005-08), TC/SC 65B, Function blocks - Part 4: Rules for compliance profiles www.iec.ch