Programming Languages
The
Studio 5000 Logix Designer®
application supports these programming languages.Language | Is best used in programs with |
|---|---|
Ladder Diagram (LD) | Continuous or parallel execution of multiple operations (not sequenced). Boolean or bit-based operations. Complex logical operations. Message and communication processing. Machine interlocking. Operations that service or maintenance personnel have to interpret to troubleshoot the machine or process. IMPORTANT : Ladder Diagram is the only programming language that can be used with the Safety Task on ControlLogix® 5590 controllers. |
Function Block Diagram (FBD) | Continuous process and drive control. Loop control. Calculations in circuit flow. |
Sequential Function Chart (SFC) | High-level management of multiple operations. Repetitive sequence of operations. Batch process. Motion control that uses structured text. State machine operations. |
Structured Text (ST) | Complex mathematical operations. Specialized array or table loop processing. ASCII string handling or protocol processing. |
For more information, see the Logix 5000 Controllers Common Procedures Programming Manual, publication 1756-PM001.
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