Hello,
The thing is that I don't have to much experience with siemens and I have a problem, I think the problem is the CPU, because all the red lights are ON ( ST, QV, ZY, BA ) I already tried overall reset several times and tried other way that I read in the forum, Turning off the entire power and remove the batteries, wait 10 minutes and tried to read the eprom.
The program should be in the eprom.
The CPU with the problem is 115u 944, now I can buy 115u 944B but I not sure is could be work. The label from the sides is the same 6ES5 944-7UB21 but in the front one have no B and the other one have B.
Other question, Can I change de CPU and read the program from the eprom or I need to do something else like a do something with computer? Because I don't have any cables and any programs.
I hope you can help me or give me any suggestions.
Thank you!
I know that is a very old version but I have to start the machine and order the update to s7 before.
The thing is that I don't have to much experience with siemens and I have a problem, I think the problem is the CPU, because all the red lights are ON ( ST, QV, ZY, BA ) I already tried overall reset several times and tried other way that I read in the forum, Turning off the entire power and remove the batteries, wait 10 minutes and tried to read the eprom.
The program should be in the eprom.
The CPU with the problem is 115u 944, now I can buy 115u 944B but I not sure is could be work. The label from the sides is the same 6ES5 944-7UB21 but in the front one have no B and the other one have B.
Other question, Can I change de CPU and read the program from the eprom or I need to do something else like a do something with computer? Because I don't have any cables and any programs.
I hope you can help me or give me any suggestions.
Thank you!
I know that is a very old version but I have to start the machine and order the update to s7 before.