i need to upgrade a control system that has a symax m50 plc in it and i do not have a copy of the program... the m50 was a small standalone variation of the symax that was rackless and all the io is onboard (similar to a twido only much bigger and much older).. there doesnt seem to be much info on the m50 and from what i have been able to gather it did not use the same software as the rack style symax.. any info would be greatly appreciated. thanks bigdave