Programming a syringe pump with RS232

[Mike227]

Dennis,

I still have Lynns idea of the cluster...I decided to go another route. Just trying to get some good criticizm rather than bad.

So the Pump drivers are from KD Scientific. The pump is using a RS232 feed.

Do you think I should stick to my first design of the program?

[Dennis_Knutson]

I WAS giving you good criticism. None of your designs are very workable.

[Mike227]

Okay, I'm new to LabView, and need some help.

What is the best method to complete a multi-step process?

[Dennis_Knutson]

To start, add the time function to the cluster that Lynn gave you. If you want the infusion/withdrawal set by the number, remove the infusion/withdrawal option from the cluster, then, when you pass the cluster array into loop, you can use a simple case statement though you have to take care with comparisons to floating point numbers.

p.s. grams are weight and liters are volume so you would need to know the volume of fluid that x number of grams are in before you can calculate flow in grams/minute.

[AKA_TG]

Hi Mike 227

Can you say what the sub VI's are in the example?

I am personally unable to figure out what you are doing without them. Is the code

proprietary?

PS: I have good experience with programming Kloehn Syringe pumps and have developed a halfway decent driver using an

action engine approach.

I am curious as to how your syringe pumps work wrt the actual serial interface and configuration.

[Mike227]

Hi AKA_TG,

I think you can help me the best. I will attach my new code. I am using the case structure to say if the user inputs a negative number into the rate then it will be withdrawal. And if the user inputs a positive number than it will infuse. I need to allow the user to define a time for each step.

I am using a RS232 feed and the drivers are from KD Scientific.