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I know very little (OK, nothing) about PLCs but I'd like to get some know how. I've been given a Melsec F2-20 PLC, but no programmer. I was wondering whether there was a cheap way of programming this device - eg. a piece of PC software & a DIY cable ? Thanks if anyone can advise. I know this article's a bit mickey mouse and doesn't provide info. Apologies for lowering the tone !