8404 Program diagnostic message class 4

Description

Refer to Diagnostic class (standard): 4

A diagnostic message from the program has been triggered with the FC_DiagMsgWrite() function.

Cause

Solution

The diagnostic message was triggered by the program.

See the description of your program.

It is possible to display an additional diagnostic text with the FC_DiagMsgWrite() function.

NOTE: You cannot acknowledge this diagnostic message because this diagnostic message is assigned to diagnostic class 4. You must restart the controller.