mjdolan25
Member
Hello,
I'm new to the world of PLC's (learning as i go). I've got a piece of equipment controlled by an SLC 5/03 that for some reason seems to be hiding parts of the program. The ladders are numbered 2-7 then they skip all the way up to 47 and continue to 70. None of the ladders that i can find have any references to outputs and there are references to subroutines that i cant find. However the PLC is blinking O:7 which is a fault light for the machine.
How can the PLC be blinking 0:7 if there is no reference to it in the program or am i somehow not seeing all of the program?
I'm new to the world of PLC's (learning as i go). I've got a piece of equipment controlled by an SLC 5/03 that for some reason seems to be hiding parts of the program. The ladders are numbered 2-7 then they skip all the way up to 47 and continue to 70. None of the ladders that i can find have any references to outputs and there are references to subroutines that i cant find. However the PLC is blinking O:7 which is a fault light for the machine.
How can the PLC be blinking 0:7 if there is no reference to it in the program or am i somehow not seeing all of the program?