Hello All.
We've gotten a new (used) machine with a Fanuc 20T control. We want to upload and download programs to the control from various PCs. We've been successful downloading programs from the control to the PC, but are stumped as to how to upload a program from the PC to the control.
Reading the manual, we come to a point where they say "Key 3 = 1". We're not sure what this is or how to set this "key". I'm sure this is something simple but we can't get any of the "soft keys" which are discussed further down in the procedure to show up. Thus, we're guessing that the control is not letting us access some features because it's protecting the existing programs or something like that. Oddly, though, we can blatantly delete programs with impunity, so that may not be it at all.
If anyone has a 20T and knows the procedure for getting it into the mode to accept an upload, we'd really appreciate hearing about it. The book has left us more than a little bewildered. (Being a total novice at the operation of these controls, I probably need a step-by-step button sequence to help me).
I'm just an electronics guy, but my friends (the machinists) know that I've been the one to build various RS-232 cables and also various interface circuits and write programs to run on PCs to allow them to simulate tape readers and the like, so they've asked for my help. But I'm afraid that I can't decipher the instructions in the book either.
Thanks for any help. I appreciate your time to read this and hopefully post or email me the secret
Regards
Sigmo