Command: Insert Coil
Symbol: 
; symbol ini the editor: 
Shortcut: Ctrl+A
Function: The command inserts a coil in the network. When you drag the element from the toolbox to the implementation part, the plus symbol at the cursor (
) helps you recognize the possible insert positions.
Call: Ladder menu; context menu
Requirements: A valid insert position (rectangle or triangle) is selected. The cursor shows this with a plus symbol.
Command: Insert Coil (parallel)
Shortcut: Ctrl+A
Function: The command adds a new coil to the network on a parallel branched connection.
Call: Ladder menu; context menu
Requirements: In the ladder diagram, an insert position for a parallel connection is selected.This is a triangle which points downwards or upwards (
, 
). Then when you open the menu or context menu, the Insert Coil (parallel) command will be displayed instead of the Insert Coil command.
Element: Coil
A coil applies the value supplied from the left and assigns it to the Boolean variable assigned to it. Its input can have the value TRUE (ON) or FALSE (OFF).
In a negated coil (
), the negated value of the incoming signal is assigned to the Boolean variable.
You can use the commands of the Set/Reset submenu to define a set coil or reset coil:
Set coil: When the value TRUE arrives at a set coil, the coil retains the value TRUE. As long as the application is running, the value can no longer be overwritten here.
Reset coil: When the value TRUE arrives at a reset coil, the coil retains the value FALSE. As long as the application is running, the value can no longer be overwritten here.