Rockwell-automation 57C610 Enhanced Basic Language, AutoMax Instrukcja Użytkownika Pobierz pdf (Strona 18)

3Ć2

2. To provide a reference for conditional and unconditional

transfers of control (GOTO,GOSUB, etc).

Line numbers can be consecutive numbers:

1ăLET M%=23

2ăLET Z%=11

3ăLET K%=Z%+M%

4ăEND

However, writing line numbers in increments of 10 allows for

inserting additional statements between existing lines:

10ăLET M%=23

20ăLET Z%=11

30ăLET K%=Z%+M%

40ăEND

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In BASIC, one line can be either one statement or several

statements, always terminated by pressing the RETURN <CR> key.

A single statement line consists of:

A line number from 1 to 32767

2. A statement keyword PRINT

3. The body of the statement A%+B%

4. A line terminator <CR>

Example of a single statement line:

10 LET SPEED%=(GAIN%+3)/12

<CR>

A multiĆstatement line (more than one statement on a single line)

requires a backslash (\) or a colon (:) to separate each complete

statement. The backslash or colon statement separator must be

typed after every statement except the last one. For example, the

following line contains three complete PRINT statements:

10 PRINT A$\PRINT B$\PRINT C$ <CR>

10 PRINT A$:PRINT B$:PRINT C$ <CR>

There is only one line number for a multiĆstatement line. You should

take this into consideration if you plan to transfer control to a

particular statement within a program. For instance, in the above

example, you cannot execute just the statement PRINT B$ without

executing PRINT A$ and PRINT C$ as well.

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Rockwell-automation 57C610 Enhanced Basic Language, AutoMax Instrukcja Użytkownika Strona 18