Operation of the DP/PA Link and the Y Link
8-13
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
Where can you acquire the newest firmware version?
The newest firmware version is available from your Siemens partner or on the
Internet:
http://www.siemens.com/automation/service&support
Tip: Note down the version of the current firmware
Note down the previous firmware version before updating it.
Should you encounter problems with the new firmware, you can then download
the previous firmware version from the Internet and reload it onto the IM 157.
Prerequisites
The IM 157 that is to updated must be operated on a DPV1 master.
The IM 157 must be accessible online from the programming device/PC. The
following methods are available:
– Directly via PROFIBUS-DP (accessible nodes)
– Via MPI to the CPU and then via PROFIBUS-DP
The files with the new firmware version must be available in the file system of
your programming device/PC.
Procedure
The update procedure depends on the communication path that is used:
Directly via PROFIBUS-DP
In the SIMATIC manager, select the “Target system > Accessible nodes” menu
command. Highlight the required IM 157 in the displayed list and select the “Target
system > PROFIBUS > Update firmware” menu command.
Via MPI to the CPU and then via PROFIBUS-DP
Open the HW Config and highlight the required IM 157. Select the “Target system
> Update firmware” menu command.
The rest of the procedure is described in the STEP 7 online help.
You can select whether the new firmware should be activated immediately after a
successful update or not until after the power is switched off and on.
After a successful update, apply a label with the new IM 157 firmware version over
the old version.
Update not successful
If the update fails, the IM 157 will always start up with the previous (“old”) firmware
after the power supply is switched off and on.
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