Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual User Manual
Page 57
Publication 1794-UM064B-EN-P - May 2014
Communicate With Your Module 45
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)
Hexadec. Dec.
Module Update Rate
(RTSI = 0) (RTSI = 0),
IT = 1
0
0
0
0
Channel not configured
0
0
0
1
4...20 mA
signed 2’s complement
4% Under; 4% Over <0000...7878>
<0000...30840>
7.5 ms
5.0 ms
0
0
1
0
± 10V
signed 2’s complement
2% Under; 2% Over <831F...7CE1>
<-31969...31969> 2.5 ms
2.5 ms
0
0
1
1
± 5V
signed 2’s complement
4% Under; 4% Over <8618...79E8>
<-31208...31208> 2.5 ms
2.5 ms
0
1
0
0
0...20 mA
signed 2’s complement %
0% Under; 4% Over <0...2710>
<0...10000>
7.5 ms
5.0 ms
0
1
1
0
0...10V
signed 2’s complement %
0% Under; 2% Over <0...2710>
<0...10000>
5.0 ms
5.0 ms
0
1
1
1
± 10V
singed 2’s complement %
2% Under; 2% Over <-D8F0...2710>
<-10000...10000> 5.0 ms
5.0 ms
1
0
0
0
0...20 mA
binary
0% Under; 4% Over <0000...F3CF>
<0000...62415>
2.5 ms
2.5 ms
1
0
0
1
4...20 mA
(1)
binary
4% Under; 4% Over <0000...F0F1>
<0000...61681>
7.5 ms
5.0 ms
1
0
1
0
0...10V
binary
0% Under; 2% Over <0000...F9C2>
<0000...63938>
2.5 ms
2.5 ms
1
0
1
1
0...5V
binary
0% Under; 4% Over <0000...F3CF>
<0000...62415>
2.5 ms
2.5 ms
1
1
0
0
± 20 mA
offset binary, 8000H = O mA 4% Under; 4% Over <0618...F9E8>
<1560...63976>
2.5 ms
2.5 ms
1
1
0
1
4...20 mA
offset binary, 8000H = 4 mA
4% Under; 4% Over <8000...F878>
<32768...63608>
7.5 ms
5.0 ms
1
1
1
0
± 10V
offset binary, 8000H = OV
2% Under; 2% Over <031F...FCE1>
<799...64737>
2.5 ms
2.5 ms
1
1
1
1
± 5V
offset binary, 8000H = OV
4% Under; 4% Over <0618...F9E8>
<1560...63976>
2.5 ms
2.5 ms
(1)
Underrange for 4...20 mA occurs in the blind area below 0 (3.2 mA).
(2)
1794-IF4I Isolated Analog Input Module Word/Bit Descriptions
Word
Decimal Bit
(Octal Bit)
Definition
Read Word 0
Bit 00…15
(00…17)
Channel 0 Analog Data – Real time input data per your configuration.
Read Word 1
Bit 00…15
(00…17)
Channel 1 Analog Data – Real time input data per your configuration.
Read Word 2
Bit 00…15
(00…17)
Channel 2 Analog Data – Real time input data per your configuration.
Read Word 3
Bit 00…15
(00…17)
Channel 3 Analog Data – Real time input data per your configuration.
Read Word 4
Bit 00…15
(00…17)
Real Time Sample – the elapsed time in increments programmed by the real time
sample interval.