Configuring Hardware and Communication Connections STEP 7.pdf

Commissioning and Service
17.2 Identification and Maintenance (I&M)
I&M functions are information functions that you can use to retrieve information
about a device, such as the manufacturer, version, ordering information. I&M
functions let you find out information about a device concerning its configuration,
placement in service, diagnostics and repair.
What Devices Support I&M Data?
In general, PROFIBUS DPV1 slaves can support I&M data. No I&M data are
defined for PROFIBUS DPV0 slaves.
What's New about I&M Functions
I Data
M Data
I&M functions are an integral part of S7 components, known by the designation
"Module Identification."
What's new about I&M functions is that accessing this information is now
standardized by the German PROFIBUS User Organization [PROFIBUS
Nutzerorganisation e.V. (PNO)]. Since STEP 7 also supports this access, you can
also process I&M data from non-S7 components.
I data are information on the module. Some of this information may also be printed
on the module housing.
You can read I data by using the module diagnosis function in STEP 7 (in "Module
Information" go to the "General" tab and the "Identification" tab).
M data are plant-dependent information such as the Plant ID (AKZ), Location ID
(OKZ), installation data and any comments.
M data can be written to the module online.
Configuring Hardware and Communication Connections with STEP 7
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