plcstu1980
Member
Hi, recently i have been downloading a program to a PLC on site at my work. The program was written several months before. So when i connected the PLC stopped, the plc communicating (before this said there was changes in the current program compared to the original). I was told that as the PLC has been running for a few months some of the variables in the plc will have changed and so downloading the original program to the plc would not account for these issues. To get the original the program to work, would you have to reset the plc then download a fresh or it there an other way get around this. Or as the plc program is already downloaded can you read this program directly from the plc??
Stu
Stu