Best way to handle multiple serial communications

[Eric1977]

Hi guys,

I am in need of some help. I am trying to make a small program that does a few things:

1. Spin a stepper motor with no encoder (via serial RS-232) a set amount of time
2. Take a reading from a mitutoyo indicator (via another RS-232 serial)
3. Repeat N times.

I think that notifiers would do but I need some other opinions/solutions. I think that a state machine would benefit me here, which I am familiar with, but with multiple communcations going on, I am not sure the best way to achieve this. I have attached my VI, which I hate, and have stopped development on.

Any pointers would be greatly appreciated.

Eric

[RTSLVU]

It looks to me like you have over complicated this.

A simple state machine is all you need. I do not think a producer-consumer (queue) is even needed here.

Also you are initializing your serial port every time you read? That is a problem.

I would have a state machine that does this.

1. Initialize the serial ports and setup your document
2. Start the stepper
3. take readings
4. save data
5. stop the stepper
6. repeat or exit

[Eric1977]

I appreciate the help. I think I have it but I want to keep this open if any other questions arise. Thanks again.

[Claudio_G]

Why dont you just make a linear VI?

[billko]

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@Eric1977 wrote:

I appreciate the help. I think I have it but I want to keep this open if any other questions arise. Thanks again.

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For the benefit of the forum, could you post your solution?  This is a help forum, and you could end up helping someone.  🙂