Troubling connecting to Masterflex pump (07551-20)

[Alexhoho]

Hi everyone,

I am very new to NI and Labview so please bear with me. I have inherited a piece of LabView coding from a former colleague, and I am having trouble getting the hardware running.

The hardware I have is NI PXIe-1082 and Masterflex peristaltic pump (07551-20) and I am connecting the hardware together via RS232. I have tried using NI MAX and a loop-back test to test for communication, however I did not get a response from the device.

If I am asking the right questions here:

1. is the coding suitable for the application?

2. How can I check if there is a communication between the devices?

I have attached the VI and manual of the pump in the attechment.

Any help will be appreciated and thank you in advance.

Thanks

[Albert.Geven]

Did you try a straight rs232 and a Null modem version?

And I see that there is a possible USB port and a serial in and a serial out.

What did you connect?