How to get the value of the discrete input DI0.0 (DI1.0, DI2.0, DI3.0),  of the technology moduleTM PTO 4 (6ES7553-1AA00-0AB0)?

Hi there,

I think there's a general lack of understanding of what that module does and how it works. Your question basically refers to “what data does the module provide”, and that is indeed a very basic question when it comes to working with that module.

Best you check the manual, especially the chapter about the module's feedback and control interface: https://support.industry.siemens.com/cs/ww/en/view/109974308/185154306315

There is no direct member in the feedback interface that reflects the DIs status. But the interface provides the status of certain functions that are mapped to the DI status (depending on what you parametrized for the module).

As I cannot give a quite direct answer, I'd like to ask: What do you use the module for, and what do you want to achieve with what you asked for? What's the goal behind your question?

Regards,
daviso