HP Neoware e140 Thin Client - Manual (Page 282)

17-4
TA6530 Emulation
Operating Modes
The Tandem 6530 emulation operates in one of three main modes, Conversational,
Block, or ANSI. Conversational and Block modes are normally used for applications
running on a NonStop host system, and ANSI mode for applications running on the
LXN host system.
Conversational Mode
In Conversational mode, characters are sent to the host as you type them. This is
useful when applications need to interact with you on a character, word or line-by-
line basis.
Display memory is treated as one long page consisting of 400 lines, of which 24 lines
may be viewed at any one time. Lines above or below those currently displayed may
be scrolled into view using cursor or display control keys. Once all the display
memory has been used, new data will force all previous lines of data up one line so
that the first line is erased, ensuring that the oldest data is erased first.
The status line will display CONV when you are in Conversational mode.
Block Mode
In Block mode, characters are stored in a communications buffer and are not
transmitted to the host until the application requests them. The characters are then
sent as a block. This enables you to enter a large amount of data and edit it locally
before it is transmitted.
Block mode has two sub-modes: Block Nonprotect and Block Protect. In Block
Nonprotect mode you can enter any type of character at any position on the screen
(except on the 25th line). In Block Protect mode the application divides the screen
into protected and nonprotected areas called fields. The cursor cannot be moved into
protected fields, which may contain prompts or information or be empty. The cursor
can only be moved into unprotected fields, which may also define the type of
characters that can be entered.
In Block mode, display memory is divided into pages, the number of pages being
determined by the application.
The status line will display BLOCK when you are in Block mode, and PROT when
in Block Protect mode.