Array 3711A DC Load

[jimlipu]

Hi there

I'm looking for examples or codes for Array 3711A DC Electronic Load in LabView.

thank you.

[Jared_B]

jimlipu,

It does not appear that we have any instrument drivers for that specific device.  What type of communication does your device use?  You may be able to use some of the VISA or GPIB examples to help you get started, assuming you have the manual for your device or a list of commands.

[jimlipu]

thank you for replying

it's TTL to USB, yes, I'm starting use VISA

[smercurio_fc]

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jimlipu wrote:

it's TTL to USB, yes, I'm starting use VISA

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That doesn't make much sense. Does it have a digital I/O port for controlling it, or does it have a USB port, or does it have a serial port? The user manual seems to imply a serial port.

[spacetech]

I have this same problem. I have the 3711A DC load and want to control it and log values from it in one of my labview projects.

The load has a nine way D connector on the back and a stand alone RS 232 adapter that plugs into this.

I have a compact rio and an NI 9870 4 port RS232 module.

I hope to connect this load to the adapter and then to the RS232 module although looking through the manual for the load, there seems to be a lot of talk about controlling the load from a PC with their proprietry software but after a quick scan through the manual, there doesnt appear to be any reference to commands should I wish to develop my own driver for it. Also I've never done a driver for an instrument before!

So, yes. I'm in a bit of a pickle. 

So if any of you could point me to a tutorial or give me some tips or at least an idea of what to do first then I'd be most grateful.

TIA

Chris

[smercurio_fc]

The communication protocol can be found on the manufacturer's web site: http://www.array.sh/yqxzcnE.htm. Scroll down to the 3700 section and get the document called "Communication protocol".

It indicates that you have to send a message that is 26 bytes, and the meaning of each byte is given in the specification document.

[jjp377]

We are working on the development for Array Electronics 3700 Series, we have a beta version available, if you are interested in trying the driver you can email us at instrument.drivers@ni.com.

[spacetech]

Hey thanks for that..I've just put in my request  🙂

[jjp377]

The driver is now available on IDNet

http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=A40AB1DAFDBB4F6CE0440021287E6A...