Internet PLC Forum

General => Technical support => Topic started by: justinkering on January 23, 2003, 05:00:08 AM

Title: programming question
Post by: justinkering on January 23, 2003, 05:00:08 AM

Hi,
I am a little confused about how to get the following result:
I have a solenoid that controls a movable carriage,
when the carriage reaches it's limit, the end of arm tool needs to turn on and off 3 more different solenoids with various time intervals.
I have experimented with no sucess, I would like to see an example program if possible.
Thanks

Title: Re: programming question
Post by: support on January 23, 2003, 09:55:19 AM

You can start 3 timers with different during when the limit switch "EndofArm" is energized:

      EndofArm                                    T1
|-----||--------(TIM)
                                                                          |         T2
                                                                          |__(TIM)
                                                                          |         T3
                                                                          |__(TIM)


Timer T1, T2 and T3 can then be used to turn on the solenoids at different time. Once a solenoid is turned ON, trigger another new timer so that it will be turned off automatically when the timer times out.