Technical data

Appendix
27.8 Setting the Operating Behavior
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 681
27.8.2 Updating the Firmware (of the Operating System) in Modules and
Submodules Offline
The following section describes how to transfer a new firmware version (new operating system
version) to a module or a CPU by means of a memory card.
The update requires the following two steps:
1. Create an "update memory card" (transfer the update files to a memory card) with the
programming device (PG) or PC with an external prommer.
2. Using the "update memory card", update the operating system on the CPU.
Requirements
• Memory card with sufficient storage capacity. For information on this, refer to the download
pages at customer support. This is where you will also find the update files.
• Programming device (PG) or PC set up to program memory cards.
To transfer the update files to a memory card, proceed as follows:
1. Create a new directory with the Windows Explorer.
2. Transfer the desired update file to this directory and unzip it there. This directory will then
contain the UPD file.
3. Insert the S7 memory card into the programming device (PG) or the prommer.
4. Delete the memory card (menu command: File > S7 Memory Card > Delete in the SIMATIC
Manager).
5. Select the PLC > Update Operating System menu command in the SIMATIC Manager.
6. In the dialog box that is displayed, select the directory with the UPD files.
7. Double-click the UPD file.
This action starts the programming process. When this process is ended, the message "The
firmware update for the module was successfully transferred to the S7 memory card" is
displayed.
Updating the Operating System:
1. Switch off the power supply (PS) unit for the CPU.
2. Insert the prepared memory card with the update into the CPU.
3. Switch the power for the CPU back on.
The operating system is transferred from the S7 memory card to the internal FLASH EPROM.
During this time, all LEDs on the CPU are lit up.
4. After about two minutes, the update is finished. To indicate that the update is finished, the
STOP LED on the CPU flashes slowly (system request for memory reset)
5. Switch the power off at the power supply unit and, where appropriate, insert the S7 memory
card that is intended for the operation.