It's old but is it nonfunctional?

I have a Telemecanique TSX T317 and a TSX 17. They are just a curiosity. I'm trying to figure out if they're functional. The TSX 17 is flashing between "I/O MEM" (red) and "RUN STOP" (green). "BATT" is red. The TSX T317 waits for a language (enter). Then displays "*TSX T317 V1.0*" (first line) and "<-->TSX ?" (second line). Then "SELFTEST" (first line) and "Keyboard test" (second line). Then back to language selection. I can't seem to get it out of that loop.

Any comments are appreciated.