TON (Timer On-Delay)

TON (Timer On-Delay) is a fundamental ladder logic element or instruction used to implement control logic in PLC programs. A timer that waits for a specified duration after being enabled before activating its output, commonly used for delayed start operations. This instruction type enables programmers to create specific control behaviors, implement timing functions, or manage data within ladder logic programs. Understanding and properly utilizing TON (Timer On-Delay) is essential for developing effective ladder logic programs that meet application requirements.

The implementation of TON (Timer On-Delay) follows established conventions and best practices for ladder logic programming. Programmers must consider scan time impacts, proper placement within ladder rungs, and interaction with other instructions when using TON (Timer On-Delay). Common applications include sequential control, state machine implementation, and process interlocking. Effective use of TON (Timer On-Delay) contributes to clear, maintainable ladder logic programs that can be easily understood and modified by maintenance personnel.