INTERBUS
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Fieldbus Dependent I/O Module
INTERBUS
7.3 Process Image and Diagnostic Status Bits
The process image is masked into the INTERBUS log word by word.
Abbreviations
Meaning
DIx
Status of the digital input “x”
DOx
Status of the digital output “x”
DSx
Diagnostic status bit for the output group “x”
Word 0 (in)
1. Word of the I/O module in the input process image
Word 1 (in)
2. Word of the I/O module in the input process image
Word 0 (out)
1. Word of the I/O module in the output process image
Word 1 (out)
2. Word of the I/O module in the output process image
.x
Bit position in the word
7.3.1 Process Image
Word
.15
.14
.13
.12
.11
.10
.9
.8
.7
.6
.5
.4
.3
.2
.1
.0
0 (In)
DIx
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 (In)
DSx
4
3
2
1
0 (Out)
DOx
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 (Out)
7.3.2 Diagnostic Status Bits
Each diagnostic status bit is valid for a group of 4 outputs.
Diagnostic Status Bit
Assigned output group
DS1
DO1 ... DO4
DS2
DO5 ... DO8
DS3
DO9 ... DO12
DS4
DO13 ... DO16
