Jog code using PLC...HELP!
Jog code using PLC...HELP!
(OP)
I am new to PLCs so please bare with me on this. I am trying to implement an small application using a Micrologix 1500, basically the operation of the machine is not complicated, but it requires a jogging control using two buttons START and STOP.
1. By pressing quickly two times the STOP buttong and hold in it in the second time, then press START button it will advance one position, by "advancing one position" means that a sonic welder using a horn will weld.
2. The other option is to jog a spinning table by pressing once the STOP button and holding it, the everytime you press START button it will jog. The difference between this is that the machine will not weld.
If you can include sample code it will be really appreciated.
Thanx in advance for your time
1. By pressing quickly two times the STOP buttong and hold in it in the second time, then press START button it will advance one position, by "advancing one position" means that a sonic welder using a horn will weld.
2. The other option is to jog a spinning table by pressing once the STOP button and holding it, the everytime you press START button it will jog. The difference between this is that the machine will not weld.
If you can include sample code it will be really appreciated.
Thanx in advance for your time





RE: Jog code using PLC...HELP!
How ever some time creative programing is required.
Try this:
Every time the stop button is pushed reset a timer (2sec) And
Add one to a counter.
If the timer times out Reset the Counter.
Timer only time it stop is released
If the counter => 2 and {jog mode)
STOP button is pressed while the start is pushed then JOG
RE: Jog code using PLC...HELP!
Safety first...
RE: Jog code using PLC...HELP!
This has great potential for some one to get hurt and or cause machinery damage. I would think again about this one.