I have an f1616BA with a Kep MMI6050 touch screen running a vertical form/Fill/Seal packaging machine and a net weigh filler for filling 2lb bags of coffee. It's been online now for a few weeks. I love the PLC, it's my first full scale PLC project. I worked through the entire programming process with need for tech support, the manuals are excellent.
I've been making adjustmets to the program. This morning I tried to load my program, with the only change being in a CusF, the counter number in a setcsv statement. After loading, I clicked on re-boot as I always have before, and the run error light came on. The PLC put on the lcd display Undef Inter. cf12. Being sure the program was ok. I tried to re-load with the same result. I then tried to load an older version of the same program, run error. Next I tried to load the "blank" program from the samples folder. This time no run error. So I tried loading my program again, run error. I also tried power off/on in between loading programs, no effect. Next I loaded "Analog-Timer" from the sampes folder, run error undef inter. CF10. CF10 only has a setlcd command.
Next I loaded the blank program again, then my program and no run error, everything is now working normally.
What could be causing this? It happened to me once a few weeks ago, I re-loaded the the program, and it worked fine after that. It didn't happen again until today. I'm concerned now about loading the program for minor changes, and rendering my machine useless. This is a machine we depend on daily, it can't be down for long. Any ideas?
Best Regards,
Derek