Siemens SIMATIC ET 200AL, System Manual

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Commissioning
8.3 Identification and maintenance data
Distributed I/O system
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System Manual, 08/2021, A5E31861578-AJ
8.3 Identification and maintenance data
8.3.1 Reading out and entering I&M data
Introduction
Identification data I&M is information that is saved either as read-only (I data) or read/write
(M data) on the interface module.
Identification data (I&M0): Manufacturer information on the module that is read-only and in
some cases is also printed on the module housing, for example, article number, serial number
and firmware version.
Maintenance data (I&M1, 2, 3): Plant-dependent information, e.g. installation location.
Maintenance data is created during configuration and written to the module.
All modules of the ET 200AL distributed I/O system support identification data (I&M0 to
I&M3).
The I&M identification data supports you in the following activities:
•
Checking the plant configuration
• Locating hardware changes in a system
• Correcting errors in a system
With the I&M identification data, you have the option of clearly identifying modules online.
In STEP 7, the identification data is displayed in the "Module status - IM 157" and
"Properties..." tabs (see STEP 7 online help).
Options for reading out I&M data
You have the following options for reading the I&M data:
•
Via the user program
• Via STEP 7 or HMI devices
Procedure for reading I&M data by means of the user program
To read the I&M data of the interface module in the user program, use the instruction
"RDREC".
Procedure for reading the I&M data using STEP 7
Requirement: There must be an online connection to the interface module.
1.
In the project navigation, under "Distributed I/O", select the I/O device or the DP slave, e.g.
"IM 157-1 PN".
2. Select: IO device/DP slave > Online & Diagnostics > Identification & Maintenance .