Which approach best implements a five-step sequencing using timers in ladder logic?

Which approach best implements a five-step sequencing using timers in ladder logic?

• A. Use a single timer for all steps
• B. Use separate PLCs for each step
• C. Use a chain of timers or pulse generation; Step 1 energizes coil A, after delay Step 2 energizes B, etc.
• D. Energize all coils simultaneously

Answer: (C)