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Search - "siemens"
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Siemens Step7 code block protection (PLC's).. It was designed to lock code that you don't want others to be able to read. All blocks are in a dbf file, so you just need to find the block record and uncomment one line, voila - source code available.
Given the massive use of Siemens PLC's on plants all over the world, and the simplicity of hacking via S7 protocol, usually Internet connected, it's a breeze to steal or modify the controllers code with possible critical implications.
Enter Stuxnet.1 -
[Long post]
My last big project at school.
There was some pretty interesting projects, some shitty one, but there was one big project that interested almost everyone : a project in collaboration with Siemens. The project implied Machine Learning and Image Analysis. There were like 11 applies, with a total of 13-14 groups.
The project was randomly chosen for each group. I've learned that my project was the big one with Siemens. I remember how excited and hyped I was in a quarter of second.
So the whole project was tutored by one teacher that know us pretty well (since we already did a pretty cool project last year tutored by him) and by a former student at my school who's now at Siemens. And to be honest, it was one of the coolest project I've been into, despite the difficulty, since the whole subject (not gonna tell it just in case) was pretty new. We had some troubles, but we and our tutors always had discussion every week that helped us quite a lot.
There was some development planned at first, but the more we went into the project, the more we all saw the complexity of it and didn't quite hope to do a single line of code, but mostly research.
The project took around 3-4 months, we had a room that we can use with a GTX 1070 for training the neural network, and me and my friend knew how to work perfectly and efficiently.
At the end of the project, as expected we didn't do some coding, but we did a presentation of the project, with the big help of our tutor at Siemens that told us to redo from scratch our part in a more scientific way; the presentation was a real success, we got all the jury saying they actually wanted those kind of presentation and were really pleased. And we provided everything needed so a new fresh group with no knowledge of the topic could do some coding on it.
We got one of the highest notes of the promotion (not sure if the highest or not). Even tho it kinda disgusted me in researching, that actually was one of the best project I got to do that was that successful.1 -
Today, I want to send a POST request from Siemens PLC as a UDP datagram to an apache webserver running PHP and Laravel. It's definitely something wrong with me. It's like 98% failure. :D3
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Here go on a course to learn the basics of this Plc (Siemens) right now this mega project that is the most complex thing our company has ever done now it's yours. WTF
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Programming Siemens PLCs is the same like using windows. Pretty comfortable - if you are fine with using it like 85% of the users.
Spent 10h today finding a way to realise an interrupt everytime a specific variable is set.. Every damned microcontroller can be used to! - _-
And therefore this typcial windows user question:
Is it not intended by Siemens or am I blind?
I mean i know you can use some prefabricated interrupts.. Like the cyclic interrupt OB.. I can't believe that it's not provided to freely create interrupts?!
Someone with an idea? -
TLDR, need suggestions for a small team, ALM, or at least Requirements, Issue and test case tracking.
Okay my team needs some advice.
Soo the powers at be a year ago or so decided to move our requirement tracking process, test case and issue tracking from word, excel and Visio. To an ALM.. they choice Siemens Polarion for whatever reason assuming because of team center some divisions use it..
Ohhh and by the way we’ve been all engineering shit perfectly fine with the process we had with word, excel and Visio.. it wasn’t any extra work, because we needed to make those documents regardless, and it’s far easier to write the shit in the raw format than fuck around with the Mouse and all the config fields on some web app.
ANYWAY before anyone asks or suggests a process to match the tool, here’s some back ground info. We are a team of about 10-15. Split between mech, elec, and software with more on mech or elec side.
But regardless, for each project there is only 1 engineer of each concentration working on the project. So one mech, one elec and one software per project/product. Which doesn’t seem like a lot but it works out perfectly actually. (Although that might be a surprise for the most of you)..
ANYWAY... it’s kinda self managed, we have a manger that that directs the project and what features when, during development and pre release.
The issue is we hired a guy for requirements/ Polarion secretary (DevOps) claims to be the expert.. Polarion is taking too long too slow and too much config....
We want to switch, but don’t know what to. We don’t wanna create more work for us. We do peer reviews across the entire team. I think we are Sudo agile /scrum but not structured.
I like jira but it’s not great for true requirements... we get PDFs from oems and converting to word for any ALM sucks.. we use helix QAC for Misra compliance so part of me wants to use helix ALM... Polarion does not support us unless we pay thousands for “support package” I just don’t see the value added. Especially when our “DevOps” secretary is sub par.. plus I don’t believe in DevOps.. no value added for someone who can’t engineer only sudo direct. Hell we almost wanna use our interns for requirements tracking/ record keeping. We as the engineers know what todo and have been doing shit the old way for decades without issues...
Need suggestions for small team per project.. 1softwar 1elec 1mech... but large team over all across many projects.
Sorry for the long rant.. at the bar .. kinda drunk ranting tbh but do need opinions... -
Yo fellow devrant devs!
Are here any PLC devs present?
After 4 years of internal struggle, short side leaps and a big amount of feeling restricted and beeing tired of it, I decided to totally switch from windows to linux. No dual boot (which ended about 20times in "oh, i didnt start linux for 2 weeks.."), no "i can have Linux on VM". Just linux and me, hopefully a neverending love story.
Thats the theory.
Problem 1: is it somehow possible to use Siemens TIA portal with Linux in a proper way?
Problem 2: is there any IDE which is at least nearly as comfortable for c# coding as visual studio?2