Maintenance and service
7.10 Updating the IM 153-x
ET 200M
116 Operating Instructions, 04/2022, EWA-4NEB7806006-09
Replacing Fuses
The fuses are located at the left side of the module.
1. You uninstall the digital output modules as described in chapter "Replace modules without
the function "Change During Operation" (Page 108)".
2. Remove the fuse holder from the digital output module.
3. Replace the fuse.
4. Screw the fuse holder back into the digital output module.
5. You fit the digital output modules as described in chapter "Replace modules without the
function "Change During Operation" (Page 108)".
7.10 Updating the IM 153-x
7.10.1 When should you update the IM 153-x?
After performance or (compatible) function enhancements you should update the interface
module IM 153-x to the latest firmware version.
7.10.2 Update of the IM 153-1 / -2Ax0x
Please contact your Siemens representative if you wish to update the IM 153-1 and the IM
153-2Ax0x.
7.10.3 Update of the IM 153-2Bx00
Where can I obtain the latest firmware version?
You can order the latest firmware from your Siemens partner, or download it from the
Internet (http://support.automation.siemens.com/WW/view/en/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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