Maple Systems STEPware-100 - Manual (Page 38)

CHAPTER 3
Operating Modes
Your OIT can be programmed to operate in one of three operating modes: Interactive,
Block, or Network. These modes affect how the OIT sends data to and receives data from
the host controller. This chapter explains the differences between the three operating
modes. Refer to Chapter 2: OIT Configuration for information on how to change the
operating mode.
Interactive Mode
In Interactive mode, the OIT immediately sends data to the host controller. For example,
pressing the OIT’s 1 key sends the ASCII character 1 to the host controller and pressing a
function key sends the predefined ASCII string. Interactive mode is most often used in
applications that require simple one-key responses from the OIT.
If local echo mode is enabled, any ASCII characters sent to the host controller are also
displayed on the OIT. When the cursor reaches the end of the current display line,
additional characters overwrite the character in the last column.
The following table lists the behavior of each OIT key in Interactive mode.
NOTE:Some keys are not available on all OIT models.
OIT Key Data Sent to Host Local Echo Mode Operation
0 to 9 0 to 9 Displays 0 to 9
Help (±) - Displays -
Toggle (.) . Displays .
Page Up ( ® ) * Displays *
Page Down ( ¯ ) + Displays +
Last Msg ( Displays (
Next Msg ) Displays )
Clear FF
Clears the display and moves the cursor to the
first position of the top line.
Delete DEL
Deletes the character to the left of the cursor and
moves the cursor one position left. If the cursor is on
the first position of a line, this key has no affect. If the
cursor is on the last position of a line and a character is
displayed there, the character is deleted and the cursor
remains on the last position of the line.
Operating Modes 35
1010-0096, Rev. 04