ITEM: D8691L

Change IBM 3151 setup programmatically

Question:

I would like to change the setup of an IBM 3151 programmatically 
instead of having to use the control setup option.  Specifically,
I would like  to change the line/column setup of the 3151 from a 
shell script.   Can/How is this done?

Response:

You need to use the "Create Viewport Command" to select a 
viewport type and define the size of the viewport.  In your
case you'll want to create one viewport (viewport type 1) with
one of the following commands:

24 lines of 80 characters each:

  ESC SP r ! ! SP 8 " P

25 lines of 80 characters each:

  ESC SP r ! ! SP 9 " P

24 lines of 132 characters each:

  ESC SP r ! ! SP 8 $ D

25 lines of 132 characters each:

  ESC SP r ! ! SP 9 $ D

For other setup parameters you should reference the following
IBM 3151 Commands:

Set/Read Control 1: Sets or reads the machine and operating modes
                    of the 3151.

Set/Read Control 2: Sets or read the machine status of the 3151.

Set/Read Control 3: Sets of reads the display functions of the 3151.

Set/Read Control 4: Sets of reads the Send parameters of the 3151.

Set/Read Control 5: Sets or reads the communication values on the
                    main port.

Set/Read Control 6: Sets or reads the communication values on the
                    auxiliary port.

Set/Read Control 7: Sets or reads the information used for a print
                    operation.

For more information on the above commands, please reference the
IBM 3151 ASCII Display Station Reference Manual, Chapter 6, 
"Commands and Responses".

Response:

Here are some samples Korn shell scripts that will change the row and
column on the IBM 3151 and set the stty rows and columns to the
appropriate values:

24x80:

\#!/bin/ksh
echo "\\033 r!! 8\\"P"
stty rows 24
stty columns 80

25x80:

\#!/bin/ksh
echo "\\033 r!! 9\\"P"
stty rows 25
stty columns 80

24x132:

\#!/bin/ksh
echo "\\033 r!! 8\\$D"
stty rows 24
stty columns 132

25x132:

\#!/bin/ksh
echo "\\033 r!! 9\\$D"
stty rows 25
stty columns 132
Question:

How do I setup the IBM 3151 to use three viewports with 8 lines
per viewport?

Response:

To set up the create viewport command to use three viewports, you must
issue the following escape sequence to the terminal:

 ESC SP r \# ! SP pd1 " 0 " SP pd2 " 0 \# SP pd3 " P

where SP=space and the pdX are the ASCII Graphic Characters for the
number of lines for the particular viewport.  For 8 lines per
viewport, replace all the pdX attributes with the open parenthesis.

The command to echo in this case would be:

  echo "\\033 r\#! (\\"0\\" (\\"0\# (\\"P"

To select the active partition you will need to use the following
escape sequence:

  ESC ! q PID

where PID is A (Viewport 1), B (Viewport 2), or C (Viewport 3).



Support Line: Change IBM 3151 setup programmatically ITEM: D8691L

Dated: September 1993 Category: N/A

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