beautypg.com

Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules User Manual

Page 52

background image

52

Publication 1756-UM009C-EN-P - December 2010

Chapter 3 ControlLogix Analog I/O Module Features

In integer mode, input modules generate digital signal values that correspond
to a range from -32,768…32,767 counts.

The table lists the conversions of a generated digital signal to the number
of counts.

Output modules let you generate an analog signal at the screw terminals that
correspond to a range from -32,768…32,767 counts.

Input Signal to User Count Conversion

Input Module

Available
Range

Low Signal and
User Counts

High Signal and
User Counts

1756-IF16/IF8

+/- 10V

-10.25V

-32768 counts

10.25V

32767 counts

0…10V

0V

-32768 counts

10.25V

32767 counts

0…5V

0V

-32768 counts

5.125V

32767 counts

0…20 mA

0 mA

-32768 counts

20.58 mA

32767 counts

1756-IF6CIS

0…20 mA

0 mA

-32768 counts

21.09376 mA

32767 counts

1756-IF6I

+/- 10V

-10.54688V

-32768 counts

10.54688V

32767 counts

0…10V

0V

-32768 counts

10.54688V

32767 counts

0…5V

0V

-32768 counts

5.27344V

32767 counts

0…20 mA

0 mA

-32768 counts

21.09376 mA

32767 counts

1756-IR6I

1…487

Ω

0.859068653

Ω

-32768 counts

507.862

Ω

32767 counts

2…1000

Ω

2

Ω

-32768 counts

1016.502

Ω

32767 counts

4…2000

Ω

4

Ω

-32768 counts

2033.780

Ω

32767 counts

8…4020

Ω

8

Ω

-32768 counts

4068.392

Ω

32767 counts

1756-IT6I and
1756-IT6I2

-12…30mV

-15.80323 mV

-32768 counts

31.396 mV

32767 counts

-12…78mV

-15.15836 mV

-32768 counts

79.241 mV

32767 counts