Hi .

I'd be very great full if someone tell me about difference between PB , FB and SB blocks in simatic step 5 and I need to know what can exactly SB block do that PB block  can't?

I'm working with PG2000 software.

Thank you experts.

Hello Mohammad;

The manuals for PG 2000 do not explain the uses of the different S5 block types? I would check again ...

In the screenshot below, taken from various manufacturers proposing modern alternatives to Step 5 software

(such as https://download.ibhsoftec.com/english/Manuals/S5_for_Windows_STEP5_Basics.pdf),

you will find these descriptions.

Hope this helps,

Daniel Chartier

Thank you sir.

Very helpful.