Commissioning
EL600x, EL602x 73Version: 4.6
Fig.68: Reading of individual terminals connected to a device
This functionality is useful if the actual configuration is modified at short notice.
Programming the PLC
TwinCAT PLC Control is the development environment for the creation of the controller in different program
environments: TwinCAT PLC Control supports all languages described in IEC 61131-3. There are two text-
based languages and three graphical languages.
• Text-based languages
◦ Instruction List (IL)
◦ Structured Text (ST)
• Graphical languages
◦ Function Block Diagram (FBD)
◦ Ladder Diagram (LD)
◦ The Continuous Function Chart Editor (CFC)
◦ Sequential Function Chart (SFC)
The following section refers to Structured Text (ST).
In order to create a programming environment, a PLC subproject is added to the project sample via the
context menu of "PLC" in the project folder explorer by selecting "Add New Item….":
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