Table of Contents - TG Drives

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Text mode
TRead RAW CH 7
PL2 MNEMONICS
TRead LINE Will read a line of data to the input buffer.
TRead NUM Can then be used to read a numerical value from
the buffer.
TRead CH Can be used to read a character from the buffer.
TRead UCH Does also read a character from the buffer, but it
skips all leading spaces and then converts the
character to uppercase format.
(Uppercase convert does only work for 7-bit
characters.)
This is more convenient if you will accept both ”Y”
and ”y” as a positive answer to a question.
To be able to use TREAD NUM, TREAD CH or TREAD UCH, you must first
execute TREAD LINE to get data into the input buffer and set the read-pointer to
the start of the buffer.
TRead LINE CLR UCH Will clear the input buffer, read a line into the input
buffer and then skip all the leading spaces, get the first
character and convert it to uppercase.
TRead LINE CLR NUM Will clear the input buffer, read a line into the input
buffer, and then read a numerical value.
TRead NUM/CH/UCH Can be used to read additional characters/numbers
entered on the same line.
All these TREAD statements work with ECHO enabled, and the line-editor is also
active, in the same way as it is in the command monitor.
The only exception to this is the:
TRead RAW CH This statement will read the first character it finds,
directly from the input buffer, this is useful if you want to
control the terminal completely by the PL code, if no
character is available it will return the code 0.
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001