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

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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