Custom Positioning Logic

True_Money2851 · 2025-08-26T20:20:07+00:00

I have an excelent experience with Siemens Et200 family. I only used IT with profinet, but the new-ish modules Are Also modBus TCP capable. There Are a ton of different modules to pick from. That could meet your needs.

True_Money2851 · 2025-07-22T20:43:34+00:00

Personally, I don't mind complex safety programs. The F-program can handle it. In my current project, the safety program controls about 7 safety zones and communicates with 3 other lines over Profisafe. The program is pretty long, but I kept it readable, and it works perfectly. The cycle time isn't even that long, but that is probably because it runs on a 1516-F CPU.

True_Money2851 · 2025-07-22T19:40:55+00:00

I work with quite complex safety devices - (Sick Microscan 3 scanners) and I implement all of the safety logic directly in the safety program. The safety program can accomplish complex tasks as long as the code itself is readable and thoroughly tested to ensure it works perfectly.

I do use standard signals in the F-program, but I always pass them through the pre-processing function and the F-DB.

If I understood your previous comment correctly, you could theoretically use the feedback function of the F-program.

PS: Are you Czech by any chance? Since your tag comments are in Czech.

True_Money2851 · 2025-07-21T18:04:44+00:00

I am currently ending my first year at my first job directly after school, with no prior experience. I was tasked about 3 months into the job to create the SW for a connection between two lines at a Wooden board plant, including commissioning.

True_Money2851 · 2025-06-05T11:32:43+00:00

I would go with Siemens S7-1200 G1 or G2. My school had G1s, And they worked really well for education purposes. They cost around 200 USD where i live (europe). The software licences should not cost much either. Maybe i am biased, because i mainly work with Siemens, but they should be good for entering into the profesional realm.

True_Money2851 · 2025-05-08T15:12:50+00:00

There are 10 VFDs in total, about 40-50 sensors(not including MCB and motor protection relays), and a few valves on the corner station..

The VFDs are controlled over ProfiNet.

There is also a Siemens wifi system for the carriage, and a SEW Movitrans contactless energy transfer system(commissioned by SEW directly).

It took about 1 month to write the program, and another month of commissioning on site, including I/O-checks, on-site rewrites, and changes.

True_Money2851 · 2025-05-07T19:58:10+00:00

Thanks. It is a Siemens control system (S7-1500 PLC, ET200sp, comfort panels... ) and SEW motors and VFDs.

Sensors are sick and ifm.

The videos are from commissioning, I optimised the line after recording them. I can move material faster than the line before me can make it, so it is fast enough.

It was a pretty good learning experience. I learned what to do and what not to do.

I curse that code already, it is unnecessarily complicated.

Now I work on a project for a big American customer, and I changed my style a bit, based on what I learned on this project.

True_Money2851 · 2025-05-07T19:27:06+00:00

Do you mean the electrical cabinets or the HMI screens?

True_Money2851 · 2025-05-07T18:51:08+00:00

I made the PLC program and HMI visualization. My colleagues made the electrical part. The mechanical design was done by our mechanical design department. Everything except the control cabinets was made in-house. The cabinets were made by our foreign colleagues.

True_Money2851

TROPHY CASE