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4.2.1
Update firmware
New firmware versions of the module
If a new firmware version is available for the communications module, you will find this on
the Internet pages of Siemens Industry Online Support:
Link: (https://support.industry.siemens.com/cs/ww/en/ps/15671/dl)
Firmware files have the file format *.upd. Save the file on your PC.
There are different ways of loading a new firmware file into the module:
• Online functions of STEP 7 via Ethernet
• Loading the firmware file into the CPU from an SD card
Note
SD card only for firmware file
For the firmware file, you need a SIMATIC SD memory card, for example (article numbers):
• 6AV6671-8XB10-0AX1
• 6AV2181-8XP00-0AX0
• 6AV2181-8AQ10-0AX0
The firmware update card may not contain any other files. An SD card with configuration
data cannot be used.
Scenarios
It is not possible to upgrade the CM with article number 6GK7542-5DX00-0XE0 to firmware
version V3.
The procedure for updating earlier versions differs depending on the installed and the desired
firmware version:
• V2.x → V2.y
It is possible to upgrade from a version V2.x to a higher version V2.y in a single step.
• V1.x → V2.x
If you are using a CM with firmware version V1.x and wish to upgrade to a version
> V2.0.15, you need to do this in two steps:
– In the first step, you need to upgrade the firmware to version V2.0.15.
– You can then upgrade the CM to the desired firmware version > V2.0.15.
• V2.x → V1.x
If you purchase a module with pre-installed firmware version V2.x but wish to operate it
with an older firmware V1.x, this is not directly possible.
In this case, contact Siemens Customer Support.
SIMATIC CM 1542-5
Operating Instructions, 01/2023, C79000-G8976-C290-07
You can find this at the following address:
Link: (https://support.industry.siemens.com/cs/ww/en/view/109742135)
Diagnostics and upkeep
4.2 Maintenance
51
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