I&M Data (Identification And Maintenance) - Siemens SIMATIC ET 200AL System Manual

4.4 I&M data (Identification and Maintenance)
Definition and properties
Identification and maintenance data (I&M) is information saved in a module to provide
support when:
● Checking the plant configuration
● Locating hardware changes in a plant
Identification data (I data) is module information (some of which may be printed on the
module housing) such as the order and serial number. I data is read-only, vendor-specific
module information.
Maintenance data (M data) is system-specific information such as the installation location
and date. M data is generated in the course of configuration and is written to the module
memory.
The modules can be uniquely identified in online mode by means of the I&M data.
Additional information
Information if and to what extent a DP device supports I&M data is available in the respective
device manual of the device.
PROFIBUS with STEP 7 V13
Function Manual, 12/2014, A5E03775446-AC
4.4 I&M data (Identification and Maintenance)
Diagnostics
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