I was working on some SLC's over the weekend and powered down the controls on both as we worked on the system they controlled. When I powered back up both were in Default (lost program) Since part of the work being done required some programming change I re loaded them. One showed battery and the other did not, (502 &503) I changed batteries but the 502 still goes to default on a power down. I saved to EEPROM on each but did not verify the save,
I have heard that sometimes it looks like it didn't load when it actually did?
I was using the UIC Cable. Luckily the PLC is only powered down when the main disconnect is off and apparently they only turn control power of. I worry if they get a power outage I'll get the call if they loos the program. Under Processor Status, Memory Module they have Memory Module Load on Boot
S:5/8 bit set to 1 all others are 0 , Should I make a change or probably get another old processor. Thoughts
I have heard that sometimes it looks like it didn't load when it actually did?
I was using the UIC Cable. Luckily the PLC is only powered down when the main disconnect is off and apparently they only turn control power of. I worry if they get a power outage I'll get the call if they loos the program. Under Processor Status, Memory Module they have Memory Module Load on Boot
S:5/8 bit set to 1 all others are 0 , Should I make a change or probably get another old processor. Thoughts