Wrong Display Firmware Version
ABB · System
What does E2-23 mean?
The display unit has an incompatible or incorrect firmware version installed. This mismatch can lead to the display not functioning, showing corrupted graphics, failing to communicate with the main processor, or displaying incorrect information. This hinders effective user interaction and diagnosis.
Common Causes
- Display unit firmware update interrupted or failed, resulting in partial installation.
- Incompatible display firmware loaded onto a specific hardware revision of the display panel.
- Main controller (e.g., PLC CPU) firmware version requires a specific display firmware version that is not installed.
- Corrupted firmware image file used for the update.
- Hardware fault in the display's flash memory preventing correct firmware loading.
Repair Steps & Checklist
Click steps to track your progress.
- 1
1. Identify the exact model and hardware revision of the display unit (e.g., MP277, Rev. B).
- 2
2. Download and install the correct firmware version for the display unit using the manufacturer's update tool (e.g., ProSave).
- 3
3. Verify the firmware compatibility matrix between the HMI/Display and the main controller (e.g., PLC CPU).
- 4
4. Perform a factory reset on the display unit if available through a service menu or hardware button.
- 5
5. Check the 24VDC power supply stability to the display unit during the firmware update process.