I WAS WONDERING IF ANY OF THE TECHS OUT THERE NEW HOW TO INCREASE THE MEMORY....FROM WHAT I UNDERSTAND ITS BASICALLY JUST UNLOCKING IT AND DOESNT REQUIRE ANY HARDWARE....ITS A 2007 4020FX WITH FANUC OIM CONTROLLER

if you call a service tech for a small/large fee the will unlock it ;) from the way I understand it on fanucs you can double what they already have as standard with a code, but to add anything more you need hardware

According to parmeter list given by machine tool builer in 18i/16i/21i Fanuc controller following is the paramter for memory,either it is use to add the addition memory hardware then set the bits according to that or you can check if the memory is locked.

PM Bit Setting Purpose
9921 0 00000001 TAPE MEM ADDITION 640M
1 00000010 TAPE MEM ADDITION 320M
2 00000100 TAPE MEM ADDITION 160M
3 00001000 TAPE MEM ADDITION 80M
4 00010000 TAPE MEM ADDITION 40M
5 00100000 CHAMFERING, CORNER RADIUS
6 01000000 READER/PUNCHER INTERFACE CONTROL 7 10000000 ATC CYCLE

and in Fanuc OM controllers the parameter is 901


PM Bit Setting purpose
901 0 00000001 TAPE MEMMORY ADDITION 320M
1 00000010 TAPE MEMMORY ADDITION 120M
2 00000100 TAPE MEMMORY ADDITION 80M
3 00001000 TAPE MEMMORY ADDITION 40M
4 00010000 TAPE MEMMORY ADDITION 20M
5 00100000 CHAMFERRING, CORNER RADIUS
6 01000000 READER/PUNCHER INTERFACE CONTROL
7 10000000 MUTIPLE REPETITVE CANNED CYCLE


May these information give some help you.

Regards.

Risna

CAUTION: BE VERY CAREFUL IF YOU CHANGE PARAMETERS AND YOU'RE NOT POSITIVE WHAT YOU ARE CHANGING!!!!!!!!!!!!

Neal

Yes, you are right.

doesnt sound like i want to mess with this on my own