HP t5510 manual Operating Modes, Conversational Mode, Block Mode, 12-4

TA6530 Emulation

INVALID DATA

You tried to enter an invalid character in the current field when in Block protect mode.

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.

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