Rockwell Automation 1746-NI16V SLC 500 Analog Input Modules User Manual - Manual (Page 68)

Publication 1746-UM001A-US-P
5-20 Channel Configuration, Data, and Status
Input Word Bit Definitions Error Conditions (Bits 15 through 13)
There are eight possible error codes to describe any given state of the
1746-NI16 module. The following table shows the different error
codes and their associated bit settings. For more information on the
error codes, see “Error Codes” on page 6-5.
Filter Frequency (Bits 12 through 10)
The channel filter frequency bits reflects the filter frequency selected
in the configuration word. Filter frequencies are active for all current
and voltage input types. The filter frequency bits are cleared while the
channel is disabled.
NOTE
If the channel whose status you are checking is
disabled (bit O:e.x/15 = 0), all bit fields are cleared.
The status word for any disabled channel is always
0000 0000 0000 0000 regardless of any previous
setting that may have been made to the configuration
word in Class 3.
Error Condition Bit 15 Bit 14 Bit 13
Channel Disabled 0 0 0
Faulty Calibration 0 0 1
Invalid Calibration Reference 0 1 0
Configuration Error 0 1 1
Open-Circuit Detected 1 0 0
Under-Range Detected 1 0 1
Over-Range Detected 1 1 0
No Error 1 1 1