Siemens SIMATIC ET 200S - Identification data

Configuration Options
3-42
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
3.9 Identification data
Identification data is information stored in a module that supports the user with the
following:
• verification of the system configuration
• detection of HW changes in the system
• system troubleshooting
Modules can be precisely identified online with the identification data. In the case
of the IM151-1 STANDARD (from 6ES7 151-1AA04-0AB0) and
IM151-1 FO STANDARD (from 6ES7 151-1AB03-0AB0) the data are available on
the ET 200S.
In STEP 7 the identification data are displayed in the tabs ”Module Status --
IM 151” and ”Properties -- DP Slave” (see STEP 7 online help).
Reading the identification data
The user can access specific identification data with Read data set. This requires
access in two stages:
1. A directory which contains the data set numbers for the various indices is
stored in data set 248 (see Table 3-12).
Table 3-12 Structure of DS 248 for ET 200S
Contents
Length (byte) Coding (hex)
Header information
ID of table of contents 2 00 01
Index of table of contents 2 00 00
Length of subsequent blocks in bytes 2 00 08
Number of blocks 2 00 05