Siemens SIMATIC ET 200SP System Manual page 216

Maintenance
12.5 Firmware update
Procedure
1. Remove any inserted SIMATIC memory card.
2. Insert the SIMATIC memory card with the firmware update files into the CPU.
3. The firmware update begins shortly after the SIMATIC memory card has been plugged in.
4. Remove the SIMATIC memory card after the firmware update has been completed.
The RUN LED on the CPU lights up yellow, the MAINT LED flashes yellow.
If you then use the SIMATIC memory card as program card, delete the firmware update files
manually.
Note
If your hardware configuration contains several modules, the CPU updates all affected
modules in the slot sequence, which means in ascending order of the module position in the
STEP 7 device configuration.
Procedure using the Web server
The procedure is described in the Web server
(http://support.automation.siemens.com/WW/view/en/59193560) function manual.
Behavior during the firmware update
Note the following behavior of the relevant I/O module when carrying out a firmware update:
● The DIAG LED display flashes red.
● The I/O module retains its current diagnostic status.
● Diagnostics alarm: Channel temporarily not available (error code 31
● All outputs are in a current-free/voltage-free state
Behavior after the firmware update
After the firmware update, check the firmware version of the updated module.
Reference
You can find more information on the procedure in the STEP 7 online help.
216
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D
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF