Table of Contents
Advertisement
The identification bytes contain information about the design and structure of
the unit inputs and outputs.
Bit
7
0
1
7.5 Diagnosis
The slave diagnosis of the I/O module provides 6 Byte standard diagnosis and
7 Byte device status diagnosis.
Byte
Fieldbus Dependent I/O Module
PROFIBUS DP
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
...
...
...
1
1
1
0
0
0
1
1
0
1
1
0
1
Information
Station status 1
0
1
Station status 2
2
Station status 3
Master address
3
4
Manufacturer code High Byte
5
Manufacturer code Low Byte
0
0
0
0
6
7
0
0
0
0
0
0
0
0
8
0
0
0
0
9
10
0
0
0
0
0
0
0
0
11
12
0
0
0
0
Meaning
0
Data length
0
1 byte or word
1
2 bytes or words
0
3 bytes or words
...
...
1
16 bytes or words
Input and output
spec. identification formats
Input
Output
Input and output
Format
0 = Byte structure
1 = Word structure
Consistence over
Byte or word
Total length
Meaning
Standard diagnosis see EN 50170 Vol. 2
0
1
1
1
Diagnostic header
(7 Byte ext. Diagnostic incl. header)
DS4 DS3 DS2 DS1
diagnostic bit (0=no error, 1=error)
0
0
0
0
reserved ( ever 0)
0
0
0
0
reserved ( ever 0)
0
0
0
0
reserved ( ever 0)
0
0
0
0
reserved ( ever 0)
0
0
0
0
reserved ( ever 0)
PROFIBUS
• 27
Hide quick links:
Advertisement
Table of Contents
