I am trying to program a PLC so when an assembly line breaks down, the operator can turn a switch, which will then put a message up to the LED display that is away in the plant. The message is scrolling across the LED display as follows:
273=line # time=seconds motors=variable of why line is down
DISPLAY SHOWS: 273(amount of time the line has been down)motors.
The program works so whichever line is down, and whatever reason it is down (no motors, no dunnage, changeover etc...) the message will be displayed. I just need the timer to be able to count how long the line has been down i.e. (the switch has been turned on). I use the count up (CTU) function but then I get the time in seconds. Does anyone know the best way to program a counter or timer function to display a time format, i.e. 9:58, instead of just displaying the seconds. Below is what I need:
WHAT I HAVE: 273 458 motors WHAT I NEED: 273 9:58 motors
THANKS FOR YOU ADVICE.