I have an SLC 5/01 in which the original program was written with Bit S:1/14 set to on, which means that I need a copy of the program on my pc before I can connect. I have the original software, but continue having problems connecting. I cannot however, find the proper procedure for connecting. User access is blocked when I upload from the plc, and when I try to download to the plc it looks like it starts to go, then I get an error message that says "download error, unable to set max station address". I am not familiar with this error, and cannot find reference to it in help or at AB's website either. What does this error mean?
I tried to erase the memory by shorting pins 14 and 28 on IC3, and this doesn't work. The program is still there.
Can someone explain how to get past the max station address error, or at least how to completely erase this unit?
Thank you so much for all help, I'm pretty frustrated.
I tried to erase the memory by shorting pins 14 and 28 on IC3, and this doesn't work. The program is still there.
Can someone explain how to get past the max station address error, or at least how to completely erase this unit?
Thank you so much for all help, I'm pretty frustrated.