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2 Visual Components Manuals

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Introduction to <strong>Visual</strong> <strong>Components</strong> 2.3<br />

The settings here are explained in further detail.<br />

4.11.8.2.1 Printer Page Layout<br />

The number of lines on a page, as well as the number of characters per line, can be set here. <strong>Visual</strong><br />

<strong>Components</strong> supports formatted printing on all line printers which can receive and print ASCII characters and<br />

which use character fonts with a fixed character width.<br />

The 'Form Feed' setting determines how a new page is started (or the previous ejected). The LF setting (line<br />

feed) is used for continuous paper feed. The FF setting (form feed) is used for sheet fed or page printers (i.e.<br />

LED or laser printers).<br />

Some printers require special settings in this field and/or on the printer itself. These features are not part of this<br />

documentation. Details about printers can be found in their user manuals.<br />

4.11.8.2.2 Printer Interface Configuration<br />

Currently, only parallel printers on the first parallel printer interface of IPCs are supported. Therefore, the 'Port'<br />

setting has to be set to LPT1. Remaining parameters are reserved for future updates and serial alarm printers.<br />

4.11.8.2.3 Printout Header Text<br />

Header text can be individually configured for every language in the project. The language currently set on the<br />

target system is used when printing. In this way, the printout matches the screen display.<br />

4.11.8.2.4 Printer Init Sequences<br />

These two adjustments enable the connected printer to be configured with [ESC] sequences. These are special<br />

character strings which allow the connected printer to recognize a command and execute appropriate actions.<br />

These character strings frequently begin with the [ESC] character − ASCII code 27.<br />

The first sequence is sent to the printer before printing begins; the second one is sent before each new page.<br />

This allows the printer to be configured to suit specific user needs.<br />

The [ESC] key can be used for inputting sequences directly just as the [CTRL] key can be used for shortcut<br />

combinations or the [ALT] and number pad keys for input. Details regarding possible sequences for the selected<br />

printer can be found in its documentation.<br />

4.11.8.2 Configuring the Printer 417

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