Programmable Package SG-8018CA(SG7050C) with frequency range from 0.67M to 170M

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor, AVX 22

SMD aluminum electrolytic capacitor

BGA double-headed needle 031-JJ-5.7L has a round head and total length of 5.7mm.

I'm currently working on the program, and many DI/DO points have been moved. It's very easy to make mistakes when updating the symbol table and the program itself. Is there a feature similar to the S7-200 programming software that allows you to modify only the symbol table, without having to change the actual program logic?

A: Based on your description, it sounds like you want to use symbolic addressing to update the actual IO addresses. This is definitely possible. By using symbolic names instead of direct addresses, you can easily adjust the mapping in the symbol table without rewriting the entire program.

Figure 1: Modify Addressing Priority

Figure 2: Confirmation Display

Figure 3: Symbol Table Modification

Using symbolic addressing not only improves readability but also makes future modifications much easier. If you're working on a large project with multiple I/O points, this approach can save a lot of time and reduce errors. You can define each signal with a meaningful name in the symbol table and then reference it throughout your program. This way, if the physical address changes, you just need to update the symbol table, and the rest of the code remains untouched.