Add a ladder diagram instruction to a routine
Add a ladder diagram instruction to add functionality to a rung. Add an instruction from the Ladder Editor
Toolbox
. After adding the ladder diagram instruction, enter a tag or value for the instruction. Complete any operands in the instruction by entering a value in each parameter. Prerequisites
To add a ladder diagram instruction to a routine
- In the Ladder EditorToolbox, select the category of instruction or inSearchin theToolbox, start typing the name of the instruction to not have to navigate the categories in theToolbox.TIP: IfToolboxis not visible, on the panebar, select
Toolbox. - Drag an instruction to a rung or branch. Valid drop zones are indicated by
.
TIP: A new instruction appears red by default because the instruction does not contain a tag. The instruction is in the error state. - Enter the tag name for the instruction:
- For a bit instruction, select the header and type the name of the tag.
- For a box instruction, select each operand that has ? in a parameter and type the tag name or a value in the parameter.TIP: To create a new tag from the ladder diagram canvas, right-click a tag or red operand that it is in error, selectCreate new tag, configure the tag parameters, and then selectCreate.
- Enter values for any parameters in a box instruction as required until the instruction turns blue, indicating that the instruction has no errors.TIP:??in a box instruction parameter indicates an operand that provides a value for the tag above it. Entering a value in a ? parameter writes the value rather than assigning the value to the tag. The ?? parameter below the ? parameter then disappears.
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