E2-2
I/O Bus Resource Failure
ABB · System
What does E2-2 mean?
A resource failure has occurred on the I/O bus module. This means a critical component or allocated resource within the module (e.g., memory, processing units, communication channels) has become unavailable or corrupted, leading to operational issues and potential loss of I/O control.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If the problem persists after restarting, inspect the I/O module for damage and consider replacement.
- 4
Review system logs for specific resource allocation errors.
Source: ABB System
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