Rockwell Automation 1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT FLEX I/O Isolated Analog Modules User Manual
Page 82
Publication 1794-6.5.8 - January 2010
82 Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter
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
4-20mA
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 4-20mA occurs in the blind area below 0 (3.2mA).
(2)
< and > indicate the overrun beyond actual range (about 5%).
Table 5.5
Configuring Your Input Module
Table 5.6
Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input Module
Word
Decimal Bit
(Octal Bit)
Definition
Word 1
Bits 00-15
(00-17)
Channel 0 analog data – Real time input data per your configuration
Word 2
Bits 00-15
(00-17)
Channel 1 analog data – Real time input data per your configuration
Word 3
Bits 00-15
(00-17)
Channel 2 analog data – Real time input data per your configuration
Word 4
Bits 00-15
(00-17)
Channel 3 analog data – Real time input data per your configuration
Word 5
Bits 00-15
(00-17)
Real Time Sample. The elapsed time in increments programmed by the real
time sample interval.