Siemens SIMATIC ET 200pro - A.2 Components for ET 200 pro motor starter

Repair
10.3 Firmware upgrade and downgrade
SIMATIC ET 200pro FC-2 converter
192 Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
16.
Reconnect all connectors.
You have successfully updated the converter's firmware to a newer version. When there is
an upgrade your settings will be stored in the converter.
10.3.2
Firmware downgrade
When downgrading firmware you replace the converter's firmware with an older version.
Only update the firmware to an older level if, after replacing a converter, you require the
same firmware in all converters.
Precondition
1. Your converter's firmware is at least version V4.7.
2. You have saved your settings onto a memory card, in an operator panel or on a PC.
Procedure
To downgrade the converter's firmware to an older version, proceed as follows:
1. Switch off the 24 V converter power supply.
2. Disconnect the connectors for power supply and motor from the converter.
3. Disassemble the converter and remove it from the ET 200pro station.
4. Insert the card with the matching firmware into the slot on the rear side of the converter
until you can feel it lock in place.
5. Plug the converter into the ET 200pro station and tighten two of the fixing screws so that
the converter can no longer unintentionally become detached from the bus module.
6. Switch on the 24 V converter supply voltage.