CIMPLICITY Machine Edition Getting Started, GFK-1868E

Logic Developer - PC
Instruction List Editor
INSTRUCTION LIST EDITOR
IL logic is one of four languages specified by the IEC 61131-3 standard. The IL
editor is an easy-to-use, intelligent, free-form text editor for editing IL blocks in the
Machine Edition environment. With the IL editor, you can work on a disk copy of
an instruction list (offline) or monitor the execution of an IL bLock running in the
Controller (online). You can also configure the appearance and behavior of the
editor under the Options tab of the Navigator.
Instruction List
Navigator: Project tab
IL block nodes
IL is a low-level language composed of basic and advanced Math instructions that
execute sequentially from top to bottom. IL blocks can also contain labels
providing entry points for program execution. In its simplest form an IL can:
1. Load a data value (operand) into the accumulator.
2. Perform an operation on the accumulator, saving the result in the accumulator.
3. Store the accumulator’s value to memory (a variable).
4. Do another accumulator load or operation, etc.
Want to know more?
In the Help Index, look up “IL Editor: an Overview”.
To open an IL block for editing
In the Project tab of the Navigator, under the Logic folder or under a userdefined
folder, double-click an IL block node.
Your IL block opens in the IL editor.
To create a new IL block
1. In the Project tab of the Navigator, right-click the Logic folder or a user-defined folder and choose New.
2. (Optional) Enter a name for the new IL block then press ENTER.
Your new IL block appears as a child node of the Logic folder or a user-defined
folder.
Note: IL blocks can be executed only when called as Actions from an SFC.
GFK-1868E
Getting Started 43