buhnen
Member
Hi fellows,
Back in the forum with just another question.
I'm using a 1769-LE32 CompactLogix CPU and I got the next trouble: When a power-fault happens and rightaway the power is backed up, the PLC restarts itself but the I/O led is all the time green blinking ( like if one or several of the I/O modules are not being detected). No Major Fault is declared (no red led steady or blinking) but even though, the PLC is not up and rolling when is green blinking. If a Major Fault would be declared I could at least attempt writing a routine and place it in the Power Up-Handler folder so that when backing up the PLC, the Major Fault was automatically reset (see this topic: http://www.plctalk.net/qanda/showthread.php?t=42705&highlight=Power-Up+Handler+Program ). But this is not such case...the green blinking goes on, goes on, goes on...
The only key to this problem I've got so far, is to let about one minute going past before backing up the PLC and this is not an acceptable solution at all (think about the plant out of control after a power fault and the need of a operator being physically there for performing this operation,...out of sense).
What is worst is that we haven't yet found a solution from our local Rockwell costumer service.
Has anyone here had a similar trouble?
Back in the forum with just another question.
I'm using a 1769-LE32 CompactLogix CPU and I got the next trouble: When a power-fault happens and rightaway the power is backed up, the PLC restarts itself but the I/O led is all the time green blinking ( like if one or several of the I/O modules are not being detected). No Major Fault is declared (no red led steady or blinking) but even though, the PLC is not up and rolling when is green blinking. If a Major Fault would be declared I could at least attempt writing a routine and place it in the Power Up-Handler folder so that when backing up the PLC, the Major Fault was automatically reset (see this topic: http://www.plctalk.net/qanda/showthread.php?t=42705&highlight=Power-Up+Handler+Program ). But this is not such case...the green blinking goes on, goes on, goes on...
The only key to this problem I've got so far, is to let about one minute going past before backing up the PLC and this is not an acceptable solution at all (think about the plant out of control after a power fault and the need of a operator being physically there for performing this operation,...out of sense).
What is worst is that we haven't yet found a solution from our local Rockwell costumer service.
Has anyone here had a similar trouble?