Hi All,
I have a SLC 500 controller to run a machine. Few weeks ago, I uploaded the old program from the SLC 500 and did some modification on the program. Later I download the new program to the SLC 500 and the machine ran perfect as I expected. And today I was told that the machine suddenly stopped running. I check on the SLC 500 and find that the program currently in the SLC 500 is the old one. The new program disappear. I re-download the new program to the SLC 500 and the machine can run again.
Does anyone ever deal with this problem before? Is there something I did wrong that may cause the lost of the new program?? Please advise...
P/S: The SLC 500 have an EEPROM memory chip in it and I am sure the new program was downloaded to the SLC500 memory, not EEPROM.
Thanks you very much.
Herbert
I have a SLC 500 controller to run a machine. Few weeks ago, I uploaded the old program from the SLC 500 and did some modification on the program. Later I download the new program to the SLC 500 and the machine ran perfect as I expected. And today I was told that the machine suddenly stopped running. I check on the SLC 500 and find that the program currently in the SLC 500 is the old one. The new program disappear. I re-download the new program to the SLC 500 and the machine can run again.
Does anyone ever deal with this problem before? Is there something I did wrong that may cause the lost of the new program?? Please advise...
P/S: The SLC 500 have an EEPROM memory chip in it and I am sure the new program was downloaded to the SLC500 memory, not EEPROM.
Thanks you very much.
Herbert