This user exit routine assigns serial numbers to send messages. It is started by specifying the function which sends messages from MHP.

This user exit routine is created as the send_uoc(). It is started when the first segment of the message send function is sent. Therefore, only the first segment can be edited by this user exit routine.

For the format of the user exit routine that edits sequential number of send message, see the applicable OpenTP1 Protocol manual.

Organization of this subsection

(1) Incorporation into OpenTP1