beginners

[Damien129]

Hi,

I have recently begun using labVIEW, I am having problems linking to my DC power supply which is an ARGOS 500. I have created an instrument driver. When i run the application n error appears which informs me that the reason for this error is as follows:

VISA or a code library required by VISA could not be located or loaded. This is usually due to a required driver not being installed on the system

Since i created the instrument driver does the project not already contain the library. Also what other drivers would i require? do i need to downlaod plug and play?

Thank you

[smercurio_fc]

You created the software layer, which consists of just the functions. You need the hardware driver layer. For that you need to install NI-VISA. You can download it from the NI site (click Support in the menu bar at the top), but it should also be on your installation discs.

[Damien129]

It is only the 30 day trial version at the moment until we purchase the licence, is there other drivers i require?

Thank you veru much

[smercurio_fc]

For VISA that's all you'd need.

You did not indicate how you're physically connecting: serial, GPIB, TCP/IP. You would need the appropriate hardware driver for that particular interface, if necessary. For example, you'd need the GPIB hardware driver for a GPIB card. If you're using a serial interface card from National Instrument then you'd need NI-Serial.

[Damien129]

I am connecting serially, usb to rs32, yes i have the hardware driver for that.

[Damien129]

rs232!

[nyc_(is_out_of_here)]

Before you get ahead of yourself, you might want to consider using a program similar to Hyperterminal to verify that you are able to communicate with the instrument. This will prove out your cable and your USB-serial device.