Configuring Analog Input

CAN SOMEONE HELP ME UNDERSTAND CONFIGURING AN ANALOG INPUT. IN OUR APPLICATION IT IS A SCL 505, ON THE FIRST PASS THE ARE FILLING 2072 TO DEST. #O:1.0 LENGTH OF 3. I AM HAVING A HARD TIME UNDERSTANDING THIS. WHAT PURPOSE IS THE 2072 HAVE? AND WHY ARE WE CONFIGURING AN OUTPUT FOR THE ANALOG INPUT? I AM ASSUMING THE 3 REPRESENTS 3 CHANNELS. SOME HELP WOULD BE APPRECIATED.

Some of the AB analog input modules require software configuration. You didn't list the module you are working with so I don't know exactly what your configuration is. However, the integer 2072 produces a bit pattern that defines the configuration of a particular input channel.
2072 = 100000011000
For a 1746-NI8, this bit pattern corresponds to:
+/- 10VDC input range
1746-NI4 data format (2's complement binary)
zero data on open circuit
no module inpu filtering
channel enabled

The first three channels of your analog input module are configured the same way with the 2072 integer.
Grab the manual for whatever module you have and it will list the meaning of the configuration bits.

Keith

Keith, Hey thanks for the help, You are right it is a 1746-NI8 card, the next 2 channels are configured at 2053 what would this represent? I could not find a manual.

This is the AB manual you are looking for (click on the link).
2053 is the same as above except:
4-20 mA input
Engineering units data format.
The module is actually capable of converting data between 3.5 mA and 20.5 mA. So if the engineering units data format is selected the data comes across as 3.5 - 20.5 mA = 3500 - 20500

Good luck.
Keith

NI8-Utillity

Hello Walleyehunter.

Maybe I´am too late, but anyway I have made a little utillity that You can use to setup Your NI8-card.

You can try it out, to see if you can use it.

beerchug

NI8-Utility

Sorry I forgot to put in the file!

It not working. maybe the file is too big.

If you post your emali, I will send it to you.

Jesper