Greetings igel,
and welcome to the forum ... it’s been three or four years since I’ve seen one, but I distinctly remember that Allen-Bradley distributors used to have “demo” version CDs of RSView32 ... maybe (probably?) they still do ... these would run as fully functional systems for two hours - and then shut down ... but you could restart them over and over again ... I’m pretty sure that you could use the built-in “direct drivers” to communicate with something like your SLC ... specifically, I’m ALMOST positive that you would not have to buy a “non-lite” copy of RSLinx to make the system work ... I’ve got a hunch that this is exactly the type of software that you’re looking for ...
suggestion: try asking for this at your friendly local AB distributor ... if the first person who answers doesn’t know what you’re talking about, ask to speak with either the “software specialist” or the “PLC specialist” ... if that gets you nowhere, then send me a PM (Private Message) with your phone number and address ... I’ve probably got an old (but workable) CD in a drawer somewhere at home ... since it was always an UN-licensed free give-away, I’d have no issues with passing it on to you ...
good luck with your studies ...