Rockwell Automation 2711E-ND1 Reference Manual PanelBuilder 1400e - Manual (Page 16)

4 ASCII Displays
Publication 2711E-6.15 – November 1998
Invalid Control Sequences
If an incorrect control sequence is detected, the invalid portion is
displayed as part of the string.
For example, in the display area shown earlier, the string:
“ESC[3;0HThis sequence is invalid” would be invalid: the display is
10 characters by 3 lines, and a line specification of 3 would start
printing at the fourth line.
If the current display position were 0;0, the string would display:
←
[3;0HThis
sequence
is invalid
The left arrow character in the display represents ESC.
Other invalid sequences:
•
nested Reverse Video On, for example,
“ESC[7mOneESC[7mTwo”
The second command is invalid and, if possible, is displayed as
part of the string.
Note: If the Reverse Video On is without an Off, the terminal
automatically turns off the reverse video at the end of the string.
•
nested Reverse Video Off, for example,
“ESC[27mOneESC[27mTwo”
The second command is invalid and, if possible, is displayed as
part of the string.
•
wrong characters in text position sequence. The text position
coordinates must not contain any characters other than 0 to 9, for
example, “ESC[a3;4HThe string.”
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