Siemens SIMATIC ET 200M

Functions
8.7 Identification and maintenance data (I&M data)
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
177
Example for reading the I&M data
The user can access specific I&M data via Read data record. A two-level access is
necessary for this:
1. Data record 248 has a directory in which the associated data record numbers are given
for the various
indices (refer to the following table).
Table 8- 9 DS 248 configuration for the ET 200M
Contents Length (bytes) Coding (hex)
Header information
ID of the contents list 2 00 01
Index of the contents list 2 00 00
Length of the following blocks in bytes 2 00 08
Number of blocks 2 00 05
Block information for the I&M data
SZL-ID
relevant data record number
Length of the data record
Index
2
2
2
2
F1 11
00 E7
00 40
00 01
SSL-ID
relevant data record number
Length of the data record
Index
2
2
2
2
F1 11
00 E8
00 40
00 02
SSL-ID
relevant data record number
Length of the data record
Index
2
2
2
2
F1 11
00 E9
00 40
00 03
SSL-ID
relevant data record number
Length of the data record
Index
2
2
2
2
F1 11
00 EA
00 40
00 04
8-byte block information for additional data record objects
Σ: 48