Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 60)

2–40 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
Configuring Your Input Channel
Input Channel Configuration
03 02 01 00 Set these bits for Channel 0
07 06 05 04 Set these bits for Channel 1
11 10 09 08 Set these bits for Channel 2
15 14 13 12 Set these bits for Channel 3
Bit Settings
Input
Values
Data Format
% Underrange/
% Overrange
Input Range 2
Hexadecimal Decimal
Module Update Rate
(RTSI = 0) (RTSI = 0), IT=1
0 0 0 0 Channel not configured
0 0 0 1 4-20mA signed 2's complement 4% Under; 4% Over <0000-7878> <0000-30840> 7.5ms 5.0ms
0 0 1 0 +10V signed 2's complement 2% Under, 2% Over <831F-7CE1> <-31969-31969> 2.5ms 2.5ms
0 0 1 1 +5V signed 2's complement 4% Under, 4% Over <8618-79E8> <-31208-31208> 2.5ms 2.5ms
0 1 0 0 0-20mA signed 2's complement % 0% Under, 4% Over 0-2710> 0-10000> 7.5ms 5.0ms
0 1 0 1 4Ć20mA signed 2's complement % 4% Under, 4% Over <0-2710> <0-10000> 7.5ms 5.0ms
0 1 1 0 0-10V signed 2's complement % 0% Under, 2% Over 0-2710> 0-10000> 5.0ms 5.0ms
0 1 1 1 +10V signed 2's complement % 2% Under, 2% Over <-D8F0-2710> <-10000-10000> 5.0ms 5.0ms
1 0 0 0 0-20mA binary 0% Under, 4% Over 0000-F3CF> 0000-62415> 2.5ms 2.5ms
1 0 0 1 4-20mA 1 binary 4% Under, 4% Over 0000-F0F1> 0000-61681> 7.5ms 5.0ms
1 0 1 0 0-10V binary 0% Under, 2% Over 0000-F9C2> 0000-63938> 2.5ms 2.5ms
1 0 1 1 0-5V binary 0% Under, 4% Over 0000-F3CF> 0000-62415> 2.5ms 2.5ms
1 1 0 0 +20mA offset binary, 8000H = 0mA 4% Under, 4% Over <0618-F9E8> <1560-63976> 2.5ms 2.5ms
1 1 0 1 4-20mA offset binary, 8000H = 4mA 4% Under, 4% Over <8000-F878> <32768-63608> 7.5ms 5.0ms
1 1 1 0 +10V offset binary, 8000H = 0V 2% Under, 2% Over <031F-FCE1> <799-64737> 2.5ms 2.5ms
1 1 1 1 +5V offset binary, 8000H = 0V 4% Under, 4% Over <0618-F9E8> <1560-63976> 2.5ms 2.5ms
1 Underrange for 4Ć20mA occurs in the blind area below 0 (3.2mA).
2 < and > indicate the overrun beyond actual range (about 5%).
Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input
Module
Word
Decimal Bit
(Octal Bit)
Definition
Read Word 1
Bits 00-15
(00-17)
Channel 0 analogdata - Real time input data per your configuration
Read Word 2
Bits 00-15
(00-17)
Channel 1 analogdata - Real time input data per your configuration
Read Word 3
Bits 00-15
(00-17)
Channel 2 analogdata - Real time input data per your configuration
Read Word 4
Bits 00-15
(00-17)
Channel 3 analogdata - Real time input data per your configuration
Read Word 5
Bits 00-15
(00-17)
Real Time Sample. The elapsed time in increments programmed by the real
time sample interval.