Jetter JC-3 Series, Руководство пользователя

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Jetter AG Control of alphanumeric HMIs | 3
Application-oriented manual – Control of alphanumeric HMIs (LCD) and printers 22
3.4.1 Register description
MR 2814
Indirect cursor position
If 0 was programmed as command parameter this module register specifies the
cursor position.
Property Description
Values 0 ... number of characters on the screen
Value after reset 0
Tab. 11: Indirect cursor position
3.5 Displaying text strings
STX commands
To display text strings, use the following STX commands (STX functions):
■
DisplayText()
■
DisplayText2()
3.5.1 DisplayText() STX command
Declaration
Function DisplayText(Dev:Int,
Pos:Int,
Const Ref Text:String);
Parameter
Parameter Value Description
Dev 0 ... 11 Number of the HMI where the text string
is to be output
Pos 1 ... maximum num-
ber of characters
shown on the screen Cursor position defining the starting
point for a text string to be displayed
Text Text string to be dis-
played Hard-coded text, or name of a string
variable
Tab. 12:
DisplayText()
parameter
How to use this
command
Command-line syntax for displaying a text string:
DisplayText( 0 , 1 , "Hello World!" );
DisplayText( 0 , 25 , StringVar);
Operating principle
The first STX command clears the entire screen content ('_' in text string). Then,
it displays the text string 'Hello World!' from cursor position 1 onwards. The sec-
ond STX command outputs the content of the string variable StringVar from cur-
sor position 25 onwards. Both text strings are displayed on the default device
(Dev = 0).