32 Line Matrix Printer Code V Programmer's Reference Manual

Chapter 2 Code V Command Standards

Code V Command Standards

Many of the commands described in this chapter include an example to

illustrate the application. Commas are used in the example commands to

easily identify the various command parameters.

Many of the example commands shown also require the Free Format

command

Using the Free Format command in the examples more clearly

identifies the data and command parameters.

The commands used to operate the Code V have various selectable options

and a specific format that you must follow to obtain the desired results.

These command standards are described in the following sections. Become

familiar with their meaning and use before operating the Code V.

Special Function Control Code (SFCC)

The SFCC identifies a command directed to the Code V to enable a specific

IGP function. Based on the host computer interface or application

requirements, you can set the SFCC to any character from 17 through 255

decimal (hex 11 through hex FF).

When the Code V is shipped, the caret symbol (hex 5E, dec 94), “^”, is

configured as the SFCC. You can change the SFCC with the control panel as

described in the

User’s Manual

, or with a command as described on page

118.

Throughout the practical examples in this manual, the SFCC is shown as a ^

(caret, hex 5E, dec 94); always use the actual SFCC required by your system

configuration wherever the ^ is shown.

In the general command formats, the SFCC is represented by (cc). Always

substitute the actual SFCC required by your system configuration in the

general command format where (cc) is shown.

Do not

enter parentheses with

your SFCC.

NOTE: Perform a configuration printout as described in the

User’s Manual

and examine the configuration option listing to determine which

SFCC is currently selected.

Command Sequence

Individual commands are made up of various command parameters (such as

character height or width parameters). Each command generally begins with

the SFCC. You can string many commands together to form a command

sequence, or command line. After the Graphics Mode is enabled by the

Graphics Mode Enable command, you can input a command sequence. The

command sequence includes all commands and data from the initial SFCC of

the first command to the sequence terminator.