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Other maintenance functions58
13
13.3 Installing CPU firmware
The HMI provides a tool to upgrade software (or firmware) in the CPUs.
CAUTION: Downloading new firmware to a CPU will erase all previous settings in the unit. See
Writing settings to a live system on page 33 for instructions on restoring CPU settings.
NOTE: Both CPUs must have the same firmware version loaded.
Figure 13-3 CPU Firmware Download screen
To download new firmware to the CPUs
1. On the Main Menu, click the Maintenance button. The button will only be displayed if access
is allowed with the current login permissions.
2. Click the CPU Firmware tab.
3. Click the Browse button to select a CPU firmware file.
4. Locate the CPU firmware file and click the Open button.
5. If the selected file is valid, the Firmware Info will display and Download to CPU A and
Download to CPU B buttons will be enabled. Click the corresponding button for the CPU to
download the firmware.