Boot Project Load Failed (Insufficient License)
ABB · System
What does E3-46 mean?
The CPU was unable to load the boot project because it detected insufficient licensing for the application. This prevents the application from starting and running, indicating a licensing issue rather than a hardware fault. The PLC may enter demo or stop mode, rendering it inoperable for licensed features.
Common Causes
- Application project utilizes licensed features (e.g., advanced motion, specific communication protocols) for which the CPU does not have the required license key installed.
- License key on the CPU's non-volatile memory is corrupted, expired, or improperly activated.
- Downloading a project configured for a higher-tier CPU (with more licensed features) onto a lower-tier, unlicensed CPU.
- License file not properly transferred or activated after a CPU replacement or firmware update procedure.
- Incorrect license file associated with the specific project or CPU hardware serial number.
Repair Steps & Checklist
Click steps to track your progress.
- 1
1. Connect to the CPU with programming software and verify currently installed license keys (e.g., using the 'License Manager' utility).
- 2
2. Compare the licenses required by the project (as listed in project properties) with the licenses installed on the CPU.
- 3
3. Obtain the correct license file from the vendor's licensing portal or your distributor.
- 4
4. Install the missing or correct license key onto the CPU using the vendor's specified licensing tool or procedure.
- 5
5. If licensed features are not strictly required, remove them from the project and re-download the modified project without the features.