Jim@purdue
Member
- Join Date
- Nov 2002
- Posts
- 2
Any help would be appreciated, i'm an chemical engineer trying to learn basic ladder logic for a project i've been working on thats not working real well.
This is what i have:
3 pilot lamps: Red, Amber, and Blue
2 Buttons start and stop
Selector Switch A and B
The lamps need to do the following:
Start button Pressed and Selector switch in A position, then
1.) Red on 2000ms, then Amber on 1000ms, then Blue on 2000ms, then Red and so on repeatedly for one minute.
2.) Repeat blinking pattern 1, but four times faster, Red 500ms, Amber 250ms and so on, this lasts for 15 seconds.
3.)Run Pattern 1, then pattern 2, repeatedly two times (total 150s), then all three pilot lamps are blinking together on for 250ms, then off for 500ms.
4.) Selector swith in B position, patterns 1 through 3 run the same way, but in reverse order: Blue first, Red last, switching the selector switch when program is running swaps Red with Blue.
5.) Program 1 through 3 runs until stopped with stop button, all three pilot lights are then blinking together, on for 100ms and off for 100ms.
Any help would be greatly appreciated
This is what i have:
3 pilot lamps: Red, Amber, and Blue
2 Buttons start and stop
Selector Switch A and B
The lamps need to do the following:
Start button Pressed and Selector switch in A position, then
1.) Red on 2000ms, then Amber on 1000ms, then Blue on 2000ms, then Red and so on repeatedly for one minute.
2.) Repeat blinking pattern 1, but four times faster, Red 500ms, Amber 250ms and so on, this lasts for 15 seconds.
3.)Run Pattern 1, then pattern 2, repeatedly two times (total 150s), then all three pilot lamps are blinking together on for 250ms, then off for 500ms.
4.) Selector swith in B position, patterns 1 through 3 run the same way, but in reverse order: Blue first, Red last, switching the selector switch when program is running swaps Red with Blue.
5.) Program 1 through 3 runs until stopped with stop button, all three pilot lights are then blinking together, on for 100ms and off for 100ms.
Any help would be greatly appreciated