An area containing CICS error information and a copy of the data event control block (DECB) at the time an error occurred on a non-VTAM terminal or line. When an abnormal condition occurs on a non-VTAM terminal or line, terminal control places the terminal out of service and dynamically creates a TACLE, which is chained off the terminal control table line entry (TCTLE) for the terminal or line on which the error occurred.