32.7.3 TONA (Accumulated ON Delay Timer) and TOFA (Accumulated OFF Delay Timer)

Symbols and Features

Ladder Instruction Name

Ladder Symbol

Feature

Number of Steps

TONA
(Accumulated ON Delay Timer)

 

Timer

2

 

Ladder Instruction Name

Ladder Symbol

Feature

Number of Steps

TOFA
(Accumulated OFF Delay Timer)

 

Timer

2

 

32.7.3.1 Explanation of the Accumulated ON Delay Timer (TONA) and Accumulated OFF Delay Timer (TOFA) Instructions

32.7.3.2 Timing Chart for the TONA Instruction

32.7.3.3 Timing Chart for the TOFA Instruction

32.7.3.4 Confirming Execution Results - TONA/TOFA