Firmware Update - Siemens SIMATIC ET 200AL System Manual

Maintenance

9.2 Firmware update

9.2 Firmware update
Introduction
During operation, it can become necessary to update the firmware (e.g. for function
extensions).
Firmware updates are used to update the firmware of the interface module and I/O modules.
Note
Temporary bus interruption
When you perform a firmware update of an ET 200AL I/O module, then the ET-Connection is
temporarily interrupted due to the restart of I/O module. All downstream ET 200AL I/O
modules report a pull/plug interrupt.
Options for the firmware update
There are two ways to perform a firmware update:
● Online with STEP 7, V5.5 or higher
● Online with STEP 7, TIA Portal V13 or higher
Reference
You can find additional information on the procedure in the FAQs on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/88778936) and in the online help for
STEP 7.
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Distributed I/O system
System Manual, 08/2019, A5E31861578-AG