James Mcquade
Member
JaxGTO,
i'm not a logix 5000 expert. what happens when someone uses 20 or 30 of this always on bits to debug the program and get it running. he forgets / doesn't correct the logic because it's 2 am. then a year later, Bubba modifies the program on the weekend during a maintenance day without telling anyone he turned off the bit or does it by accident. Monday morning, the machine doesn't run and everyone is in a state of panic?
this is why we put the always on / off rung as the first line of the plc code.
james
i'm not a logix 5000 expert. what happens when someone uses 20 or 30 of this always on bits to debug the program and get it running. he forgets / doesn't correct the logic because it's 2 am. then a year later, Bubba modifies the program on the weekend during a maintenance day without telling anyone he turned off the bit or does it by accident. Monday morning, the machine doesn't run and everyone is in a state of panic?
this is why we put the always on / off rung as the first line of the plc code.
james