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Sound bell com mand 32, Dis play mes sage com mand 32, Clear out put buffer com mand 32 – Maple Systems MAP450D User Manual

Page 33: Poll oit buffer com mand 32, Re trans mit last key board buffer com mand 32, Clear output buffer 32, Display message 32, Poll oit buffer 32, Retransmit last keyboard buffer 32, Sound bell 32

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Sound Bell Command

ESC

g seconds terminator

seconds:

0 = turn bell off, 1 to 60 = sound bell for n seconds

Response: none

Description: Allows the host controller to sound the OIT’s transducer.

Example: PRINT CHR(27); “g3”; CHR(2)

Display Message Command

ESC

m message# terminator

message#:

0 = clear screen and return cursor to first position of first line

1 to 500 = predefined message to display

Response: none

Description: Displays a predefined text string starting at the current cursor position.

If the text string is longer than the remaining line, only the first part of the string is

displayed. The text string is displayed until the OIT operator presses the CLEAR key

or the host controller calls message #0 to clear the screen.

Example: PRINT CHR(27); “m2”; CHR(2)

Clear Output Buffer Command

ESC

o terminator

Response: none

Description: Clears the contents of the OIT’s Keyboard Input Buffer and Keyboard

Output Buffer when the OIT is in Block or Network modes.

Example: PRINT CHR(27); “o”; CHR(2)

Poll OIT Buffer Command

ESC

p terminator

Response: contents terminator

contents:

OIT’s Keyboard Output Buffer contents

Description: Allows the host controller to retrieve the contents of the Keyboard Output

Buffer when in Network mode.

Example: PRINT CHR(27); “p”; CHR(2)

Retransmit Last Keyboard Buffer Command

ESC

r terminator

Response: contents terminator

contents:

OIT’s Keyboard Output Buffer contents

Description: Allows the host controller to retrieve the previous contents of the

Keyboard Output Buffer when in Block or Network modes. If the buffer is empty,

only a line terminator is returned to the host controller.

Example: PRINT CHR(27); “r”; CHR(2)

Appendix A: Control Commands

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