how to use a flag?

[has]

currently i'm using a CM-5 with AX-12 and AX-S1....i'm having problem with the programming as i dont understand how to loop just one time.

scenario: when the sensor senses something, it keeps looping over and over again. but i only want it to carry out the action once.

anyone can help?

[Robo1]

Something like this should work

DoneOnce = false;

do{
if(DoneOnce == false){
//code
DoneOnce = true;
}

}while(condition)

that should work bren

[inaki]

If you only want to perform once the task you dont need any flow control sentence, just do the task !

In BCP language a sentence similar to a FOR/NEXT in Basic would be:

LOAD EndValue, 10
LOAD Counter, 0
Loop:
IF Counter > EndValue THEN JUMP ExitLoop
DoMyWorkHere
COMPUTE Counter = Counter + 1
JUMP Loop
ExitLoop:

[has]

Thanks for the information but i tried and it loop again and again.... i just want the sensor to loop, not the play motion action.....

(what i write in my program)
in BCP dialog:
LOAD endvalue 10
LOAD counter 1
IF counter > endvalue THEN JUMP exitloop
IF 103:27 > 45 THEN LOAD PLAY MOTION 29(my work)
COMPUTE counter = counter + 1
JUMP loop
exitloop;


What does the endvalue do?

my scenario:
item moved by conveyor and sensor to sense and stop the conveyor.
After it stop, motor 15 were to activate(done in motion editor ,play motion page 29)after it done with motion play, the conveyor were activated to move again.

[inaki]

The EndValue is just the top value of the loop. You can replace the line:
IF Counter > endvalue THEN...
with an immediate value:
IF Counter > 10 THEN

I don't see the "Loop" label in your code. Where have you placed it ?

Do you have the sensor with an ID = 103 ? Usually it is 100, have you changed it ?

[has]

i place the loop
BCP language:
loop IF counter > endvalue THEN JUMP exitloop
i got six sensors so the sensor i'm using is 103
i rename it as i got 6 sensors..

[inaki]

Ohhhh 6 sensors! Nice!

Please, may you attach your BCP program in your message so I can take a look at the actual code ? (hint: use Robosavvy file manager)

[has]

[url]http://robosavvy.com/Builders/has/[url]
[/url]

[inaki]

Has, I have read the BCP file. Which part of the code is the one that is working wrong ?

[has]

i willl send u e bcf pic and the part ...

[has]

http://robosavvy.com/Builders/has/

[inaki]

Has, I think I have found the problem.
In line 36 you do:

JUMP loop2

loop2 is located in line 27. However in line 28 you LOAD counter again!.

This is wrong because 'counter' never will be greater than 1. You must move the label 'loop2' to line 29.

[has]

but my loop2 already at line 29 before.....

[has]

http://robosavvy.com/Builders/has/
i wana show u wat i do to the servo and i would like to ask u how am i going to complile every program??? i jz need tips.... thanks

[inaki]

Soory Has, I don't understand your last message.