Maintenance Man
Member
For some reason when I load our program on a MicroLogix 1500 processor Unit CAT # 1764-LSP SER C REV F, It down loads with no troubel and when we use the same power supply and try to load a proceddor Unit CAT # 1764-LSP SER B REV C it will not comunicate at all. I have tried 3 new SER B precessor Units with same results. I am using the same power supply and cable for the SER C that works without any trouble. I am not sure why the SER B will not work. Thank you very much in advance for all your help.