Galil DMC-3425 user manual Entering Programs, Edit Mode Commands, Return, Ed #Begin

The program memory size for each DMC-3425 is 80 characters per line and 500 lines long.

Entering Programs

The DMC-3425 has an internal editor that may be used to create and edit programs in the controller's memory. The internal editor is a rudimentary editor and is only recommended when operating with Galil’s DOS utilities or through a simple RS-232 communication interface such as the Windows Utility Hyperterminal.

The internal editor is opened by the command ED. Note that the command ED will not open the internal editor if issued from Galil's Window based software - in this case, a Windows based editor will be automatically opened. The Windows based editor provides much more functionality and ease-of- use, therefore, the internal editor is most useful when using a simple terminal with the controller and a Windows based editor is not available.

Once the ED command has been given, each program line is automatically numbered sequentially starting with 000. If no parameter follows the ED command, the editor prompter will default to the last line of the last program in memory. If desired, the user can edit a specific line number or label by specifying a line number or label following ED.

Instruction	Interpretation
:ED	Puts Editor at end of last program
:ED 5	Puts Editor at line 5
:ED #BEGIN	Puts Editor at label #BEGIN

Line numbers appear as 000,001,002 and so on. Program commands are entered following the line numbers. Multiple commands may be given on a single line as long as the total number of characters doesn't exceed 80 characters per line.

While in the Edit Mode, the programmer has access to special instructions for saving, inserting and deleting program lines. These special instructions are listed below:

Edit Mode Commands

<RETURN>

Typing the return key causes the current line of entered instructions to be saved. The editor will automatically advance to the next line. Thus, hitting a series of <RETURN> will cause the editor to advance a series of lines. Note, changes on a program line will not be saved unless a <return> is given.

<cntrl>P

The <cntrl>P command moves the editor to the previous line. <cntrl>I

The <cntrl>I command inserts a line above the current line. For example, if the editor is at line number 2 and <cntrl>I is applied, a new line will be inserted between lines 1 and 2. This new line will be labeled line 2. The old line number 2 is renumbered as line 3.

<cntrl>D

The <cntrl>D command deletes the line currently being edited. For example, if the editor is at line number 2 and <cntrl>D is applied, line 2 will be deleted. The previous line number 3 is now renumbered as line number 2.

<cntrl>Q

The <cntrl>Q quits the editor mode. In response, the DMC-3425 will return a colon.

108 • Chapter 7 Application Programming DMC-3425