Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules - Manual (Page 58)

58 Publication 1756-UM0009C-EN-P - December 2010
Chapter 4 Non-isolated Analog Voltage/Current Input Modules (1756-IF16, 1756-IF8)
Choose a Data Format Data format determines the format of the data returned from the module to
the owner-controller and the features that are available to your application.
You choose a data format when you choose a
Communication Format .
When you choose a Communication Format, you can select one of two data
formats:
• Integer mode
• Floating point mode
The table shows features that are available in each format.
Data Format Features Available Features Not Available
Integer mode Multiple input ranges
Module filter
Real time sampling
Process alarms
Digital filtering
Rate alarms
Scaling
Floating point mode All features See below
IMPORTANT
When using the 1756-IF16 module in single-ended mode (that
is, 16-channel mode) with a floating point data format, process
alarms and rate alarms are not available.
This condition exists when the 1756-IF16 is only wired for
single-ended mode. The 1756-IF8 is not affected.