Maintenance and service
7.10 Updating the IM 153-x
ET 200M
120 Operating Instructions, 04/2022, EWA-4NEB7806006-09
Restart After Update
Update via PROFIBUS DP
In the STEP 7 user interface, it is possible to set whether
• the IM 153-2 should automatically perform a reset after a successful update, in order to
start off using the new firmware.
If the "activate firmware after download" field is checked there is a brief station failure of
the ET 200M. If no provisions have been made for this case, then the update causes the
CPU to STOP on account of rack failure.
• the IM 153-2 must be reset by switching off the supply voltage. Then, when the supply
voltage is switched on again the IM 153-2 will start up using the new firmware.
Update via SIMATIC Micro Memory Card
After the update the IM 153-2 remains in a state that can only be reset by switching off the
supply voltage. After a successful update, the next time the supply voltage is switched on the
IM 153-2 starts up with the new firmware.
Update unsuccessful
If the update fails, the next time the supply voltage is switched off / on the IM 153-2 starts up
with the former (old) firmware.
7.10.4 How to update the IM 153-2Bxx1
Where can I obtain the latest firmware version?
You can order the latest firmware from your Siemens partner, or download it from the
Internet (https://portal.automation.siemens.com/apps/meta-
search_p/index.ad.nwa.EN.html?q=15350678).
Tip:
• Prior to the update note down the current version of your firmware.
• If you encounter problems with the new firmware, you can also download the previous
(current) firmware from the Internet and transfer it to the interface module again.
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