Commissioning
8.3 Identification and maintenance data
Distributed I/O system
90
System Manual, 08/2021, A5E31861578-AJ
8.3.2
Data record structure for I&M data
Reading I&M data records (distributed via PROFINET IO)
You can directly access specific identification data by selecting
Read data record
("RDREC"
instruction). You obtain the corresponding part of the identification data under the
associated data record index.
The following table shows the principle behind the structure of data records.
Table 8- 3
Basic structure of data records with I&M identification data
Contents
Length (bytes)
Coding (hex)
Header information
BlockType
2
I&M0: 0020
H
I&M1: 0021
H
I&M2: 0022
H
I&M3: 0023
H
I&M4: 0024
H
BlockLength
2
I&M0: 0038
H
I&M1: 0038
H
I&M2: 0012
H
I&M3: 0038
H
I&M4: 0038
H
BlockVersionHigh
1
01
BlockVersionLow
1
00
Identification data
Identification data
(see table below)
54
54
16
54
54
I&M0/Index AFF0
H
I&M1/Index AFF1
H
I&M2/Index AFF2
H
I&M3/Index AFF3
H
I&M4/Index AFF4
H
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