Can I programatically change FP-AI-100 voltage range?

[JB1]

I need to programatically change the input voltage range on one of the channels of an FP-AI-100 from '-6 to 6' to '-1.25 to 1.25', is this possible & if so how?

[Wayne.C]

JB1,

"Configure Range.vi" will let you programmatically change channel ranges.  I'm pretty sure you'll be using predefined ranges like +/-10v and +/-5v    Available ranges should be listed in the manual for the FP-AI-100.

[JB1]

Thanks for the response but....

Perhaps I should have mentioned this when I asked the question but my fieldpoint units are connected using RS485 and configure range.vi is on the Ethernet pallet.

I am assuming that I need to do this using the optomux vis but, which one and how I know not and as yet have been unable to any of the optomux vis to talk to my fieldpoint devices at all.

[Ben_L]

Hi JB1,

As stated in the user manual for the FP-AI-100 can only be configured for: 0–1 V, 0–5 V, 0–15 V, 0–30 V, ±1 V, ±5 V,
±15 V, ±30 V, 0–20 mA, 4–20 mA, and ±20 mA. So it won't be possible to work between -1.5 - 1.5 V.

Kind regards,

Message Edited by Ben L on 05-25-2010 09:21 AM

[JB1]

Hi Ben

What I really need to know is how to change the range programmatically. It doesn't matter what the range is.

Regards

JB1

[Ben_L]

Hi JB1,

Have you looked through the FieldPoint Optomux Programming Reference Help ? If you refer to the section "Attributes, Ranges, and Commands" this should help you change the range.

Regards,