Component: Remote Console
In the Reference Guide Chapter 2 Statements and Commands you will find the ACCOUNT statement. One of the options is AUTOLOGOFF.
Represents the number of minutes CA-Remote Console should wait before
logging off an inactive session. (A session is considered inactive if a user has not
entered data on the command input line in more than this number of minutes.)
The valid range for this operand is 1 to 32,767 minutes.
OFF tells CA-Remote Console not to log off an inactive session.
The value specified on the RCSOPT AUTOLOGOFF command.
It is likely that you have a value in AUTOLOGOFF that is forcing the automatic shutdown of a specific account.
When this occurs you might see this message in the started task output.
RCS5611 USER userid FORCED OFF CA-REMOTE CONSOLE FROM termid