Firmware/BIOS description SIMATIC IPC BX-39A, IPC PX-39A, IPC PX-39A PRO
40 Operating Instructions, 01/2023, A5E51110693-AA
Firmware/BIOS updates are regularly available for your device. You can download these from
the Internet.
Changing firmware settings
The firmware settings are preset for working with the included software. You should only
change the default firmware settings if technical changes to your device require other
settings.
Malfunctions can occur with running software CPU
If a PC firmware/BIOS update is being performed while a SIMATIC Software Controller, such
as a SIMATIC WinAC, is running, the software CPU can malfunction, resulting in
communication interruptions or failures, among other things. Other actions that put a
heavy load on the PC hardware, for example, running hardware tests such as benchmarks,
can result in malfunctions of the software CPU.
Do not run a firmware/BIOS update or other actions that would put a heavy load on the
hardware during operation of a software CPU.
Switch the software CPU to "STOP" before you run a firmware/BIOS update or perform other
Backing up firmware settings before updating the firmware
Risk of irretrievable loss of data
All firmware settings are reset to default values after a firmware/BIOS update.
This can put the system in an undefined state. The consequence may be damage to the
device or system.
• Make sure that any settings that have been changed as compared to the delivery state
are documented before you update your firmware.
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