The scientific steps for PLC programming are actually quite simple, but many engineers often overlook important details, thinking they are trivial. Ignoring these details can lead to problems later on. To avoid future issues, it is essential to strictly follow the rules; there are specific regulations in PLC programming as well.
Step 1: Read the Product Manual
Step one seems straightforward, yet many engineers fail to do it.
Carefully reading the manual is the first step in programming. First, you need to read the safety rules to understand which actuators may pose a risk to personal safety, which components are prone to collisions, and how to address dangers when they arise. These critical issues are outlined in the safety guidelines, making it essential to read the product manual.
Additionally, the characteristics of each component, usage methods, and debugging procedures are also detailed in the manual. If you neglect to read it, even if the program is correct, if the components are not properly debugged, the equipment will not function. Furthermore, all circuit diagrams, pneumatic and hydraulic circuit diagrams, and assembly diagrams are included in the manual, which you must read to know what modifications can be made to each component.
Step 2: Check I/O According to the Manual
Checking I/O, commonly known as