After programming, what is a good practice?

• A. Save the program to nonvolatile memory and run a verification
• B. Leave the device disconnected and unrecoverable
• C. Turn off the PLC and never run again
• D. Delete the program from the device

Answer: (A)

Saving to nonvolatile memory and performing a verification after programming is best practice. Nonvolatile memory keeps the program when power is removed, so your changes aren’t lost during power cycles. Verification checks that the program loads correctly, the logic runs as intended, and the I/O, timing, and safety conditions behave properly in the real or simulated environment. This helps catch syntax errors, logic mistakes, or incorrect addressing before the program is deployed. The other options would hinder use and reliability: leaving the device disconnected prevents saving or testing; turning the PLC off and never running again stops validation; deleting the program erases work and requires reloading. In short, save and verify to ensure persistence and correctness.