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.

  1. 3

    If the problem persists after restarting, inspect the I/O module for damage and consider replacement.

  2. 4

    Review system logs for specific resource allocation errors.

Source: ABB System
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