Control a robot motion via 5 Boolean Switches

Hi All
I have a vi that i want to control the motion of a robot ( Forward, Backward, Right, Left, and Stop) Which are five states.
I need these states via Boolean switches (It looks like a cross in the front panel).
When
the user presses the right button the robot will move to the right
according to the program I already amde to dael with robot.
When
the user presses the left button the robot will leave the right state
and go to the left state, so the robot will turn left.. and so on
Only one swithch can be pressed a time.
I
need some body to help me to get the core ( I think state machine) that
will do the transfer between the states with the given condition is met
(only one switch selected from the five switches) to perform only one
task from the five tasks
Best regards
Mido(Please send the solution as LabVIEW 8.5 vi)

Well, that doesn't sound too hard. What kind of hardware do you actually have? What are the switches actually controlling? Or, is the robot controlled via a communication protocol? You said "according to the program I already made to deal with robot." What program? Is this a LabVIEW program? If so, are you trying to modify this program or write a new one? Have you looked at the KB articles? How about the examples?
http://search.ni.com/nisearch/app/main/p/y/0/q/application%20design%20patterns/x/0/

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You only need a single loop and you don't need any local variables.
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Message Edited by altenbach on 06-09-2008 01:25 AM
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Go to Solution.

You can use the value from OldVal or NewVal in the event case and a conditional structure to mask it off. Do you really need switch until released functionality? That's intended to give you two events, as the click and release are different actions. Switch when released might be a better fit for you if you only want one event.
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Hi Ned,
Your Producer-Consumer model is actually very close to working. In the original screen-captured version it looks like you're trying to use the sequence structure to capture the order, but in reality you will only capture the logical AND of all 4 buttons with no information about the order in which they were pressed. The sequence structure does not by itself wait for an event to occur inside the frame, which means all 4 frames will be read as fast as the processor gets around to reading them - which will be very fast.
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Attachments:
Button Sequence Example 9-1 Rev 1.vi ‏38 KB
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> I have placed a bmp picture on a boolean switch in editor, when I come
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Hi,
For some reason, the link you gave doesn't work ...
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BTW : aboute the "\r" well yes it is required as an end of message character
When my feet touch the ground each morning the devil thinks "bloody hell... He's up again!"
Attachments:
ESP.llb ‏132 KB

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Control a robot motion via 5 Boolean Switches

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