Other maintenance functions58
13
13.3 Installing CPU fir mware
The HMI provides a tool to u pgrade software (or firmware) in the CPUs.
CAUTION: Downloading new f irmware to a CPU will erase all previ ous 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 f irmware version loaded.
Figure 13-3 CPU Firmware Dow nload screen
To download new firmware to the CPUs
1. On the Main Menu, click the Main tenance button. The button will only be displayed if access
is allowed with the current login p ermissions.
2. Click the CPU Firmware tab .
3. Click the Browse button to sele ct a CPU firmware file.
4. Locate the CPU firmware f ile and click the Open button.
5. If the selected file is val id, the Firmware Info will displa y 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.