The 18t i am guessing the older c control did not have pcmcia card slots on the front. However they do have in the control cabinet there is a mother board and it will have a SRAM card slot. it may only be used with the sram card not a pcmcia card. otherwise you can take the file out through the rs232 by using the all io or booting up your control while holding the far right two keys on the crt. this will take you into a screen for doing sram back ups as well as system back ups. the file you will need will probably be a PMC-RB. file. then you can use FABT LADDER III. You can also go online with your control using the ladder software and a rs232 cable and this should be in the manual for the software.