What does it mean when you are adding or deleting instructions in a PLC Program?

When adding or deleting instructions in a PLC (Programmable Logic Controller) program, the process is referred to as editing the program. This involves modifying the program code to enhance functionality, correct issues, or adapt to new requirements. Editing is a fundamental part of programming where adjustments are made to ensure that the PLC operates correctly in response to the desired logic or control sequences.

During the editing phase, programmers can change the logic, include new instructions, or eliminate unnecessary ones, all of which are critical for tailoring the program to specific operational needs. This activity is essential for maintaining an efficient and effective control system, ensuring it remains aligned with the operational objectives.

Commissioning a PLC involves the initial setup and configuration of the system before it goes into operation, while debugging refers to identifying and fixing errors that occur due to faulty logic or hardware. Testing a program is performed to verify that the logic operates correctly once the program is edited and ready. Thus, the process of adding or deleting instructions distinctly aligns with the concept of program editing.