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PROFINET/Ethernet
5.1 PROFINET IO
5.1.4
Identification and maintenance data
Definition and features
The identification and maintenance data (I&M) is information saved in a module which
supports you in the following tasks:
● Checking the plant configuration
● Locating hardware modifications in a plant
Identification data (I data) consists of module information (some of which may be printed on
the module housing) such as the order number and serial number. I data consists of
manufacturer information about the module and can only be read. Maintenance data (M
data) returns system-specific information such as the location designation and installation
date. M data is created during configuration.
Modules can be uniquely identified online by means of the I&M data.
The identification and maintenance data is information that is saved as read-only (I data) or
read/write (M data) on the module.
Identification data (I&M0): Manufacturer information on the module to which you only have
read access and some of which may be printed on the module housing, for example, article
number and serial number.
Maintenance data (I&M1, 2, 3): System-dependent information, for example, the installation
location.
Maintenance data is created during configuration and written to the module.
The basic module of the Power Line Booster supports the identification data (I&M0 to I&M3).
The identification data I&M support you in the following tasks:
● Checking the plant configuration
● Locating hardware modifications in a plant
● Correcting errors in a plant
Modules can be uniquely identified online by means of the I&M identification data. You can
read the identification data I&M with STEP7 (see STEP7 online help).
Data record structure for I&M data
Read I&M data records (distributed over 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.
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Operating Instructions, 11/2019, A5E36203125A-AG
Power Line Booster
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