Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
The CPU Unit has been protected due to a detected issue. The manual's first action is: “Remove protection from CPU Unit memory.”
The CPU Unit has encountered a memory error. The manual's first action is: “01. Recreate the data specified by the 2nd byte of the detailed error code. 02. Clear memory using procedure in the PLC operation manual.”
Event timed out due to a system timeout condition. The manual's first action is: “Replace the CPU Unit.”
The system setup area is insufficient for the current configuration. The manual's first action is: “Reduce the number of CPU Bus Units.”
The CPU Unit failed to initialize properly. The manual's first action is: “Replace the CPU Unit.”
The CPU detected an unrecognized I/O device or address. The manual's first action is: “Create the I/O tables.”
CPU Unit service monitor error indicates a problem with the CPU unit's monitoring system. The manual's first action is: “Check the operating environment.”
The CPU Unit has detected a watchdog timer error. The manual's first action is: “Replace the CPU Unit.”
The socket was closed during an opening procedure. The manual lists no action for this code.
A communication error occurred with the remote node (ETIMEDOUT). No remote exists. The manual lists no action for this code.
A parameter error occurred at the remote IP address (EHOSTUNREACH). Incorrect router setting. The manual lists no action for this code.
A parameter error occurred at the remote IP address (ENETUNREACH). No network number in IP router table or incorrect router setting. The manual lists no action for this code.
A parameter error occurred at the remote IP address (EADNOTAVAIL). A parameter was specified incorrectly. An attempt was made to actively open local TCP port. The manual lists no action for this code.
A communication error occurred with the remote node (ECONNRESET). The manual lists no action for this code.
An error occurred (ECONNREFUSED). Passive remote is not available. The manual lists no action for this code.