TCHNG command in Connections

CFS handles the overflow control for each connection separately. In general, the overflow control of the basic task of the connection is used. By entering a TCHNG command inside a connection to $DIALOG or $CONSOLE, individual overflow control for each connection can be established.

TCHNG or MOD-TERM-OPT commands in connections must be visible to the Connection Handler, i.e. it must either have been entered via the keyboard, or else appear in some form on the screen. If this is not the case, a TCHNG command will have no effect in a connection.

Invisible TCHNG commands are those, for example, in a /PROC N DO procedure, or called from a user program. Invisible TCHNG commands have no effect in that connection.

A visible TCHNG command can, for example, appear as a BS2000 command in a /PROC C or /PROC A Procedure. Should the user not wish to work with /PROC C or /PROC A Procedures, the SDF command WR-T can be used to make the TCHNG command visible to the Connection Handler: /WR-T 'TCHNG ...'.