IBM SC34-6814-04 - Manual (Page 478)

Sample terminal error program messages
The messages logged to the transient data destination CSMT (or, optionally, to the
destination specified in the OPTIONS operand of DFHTEPM TYPE=INITIAL) are of
six types, each identified by a unique message prefix. You can control the selection
DFHTACP
Entry and
initialization
Terminal ID
and error
code lookup
Error
processing
selection
Error Error ... Error Error
processor processor processor processor
General Common
exit subroutine
DFHTACP
Figure 22. Overview of the sample terminal error program (DFHXTEP)
456 Customization Guide