Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual User Manual
Page 58
2–38
How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
4 Input Isolated Analog Module (Cat. No. 1794ĆIF4I) Image Table
Mapping
Module Image
I/O Image
Input Data Channel 0
Input Data Channel 1
Input Data Channel 2
Input Data Channel 3
Input Size
Output Size
0 to 8 W ord
1 to 7 Words
Real Time Sample
PU FP CF
BD DN
Underrange
Overrange
Channel Filters
Channel Configuration
Real Time Sample Programmed Interval
IC
RV QK CK GO
Channel #
Set to 0
EN
1
Not used
Not used
Not used
TR IT
Isolated Analog Input Module (1794-IF4I) Read
Dec. Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Size
Octal Bit
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Read/Write Words
Analog Value Channel 0
Read Word 1
Analog Value Channel 1
Word 2
Analog Value Channel 2
Word 3
Analog Value Channel 3
Word 4
Real Time Sample
Word 5
PU FP
CF
0
Reserved
0
0
0
0
0
BD DN
0
Word 6
0
0
0
0
0
0
0
0
V3
V2
V1
V0
U3
U2
U1
U0
Word 7
EN
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Write Word 1
Chnl 3 Filter
Chnl 2 Filter
Chnl 1 Filter
Chnl 0 Filter
Word 2
Chnl 3 Configuration
Chnl 2 Configuration
Chnl 1 Configuration
Chnl 0 Configuration
Word 3
0
Real Time Sample Programmed Interval
Word 4
IC
1
TR
IT
0
0
0
0
RV QK CK GO
Channel Number
Word 5
Not used
Word 6
Not used
Word 7