PGL Programmer's Reference Manual

2 Commands

IGP/PGL Command Standards

IGP/PGL commands have many options and a specific format that you must

follow to obtain the desired results. Certain elements are standard for all

IGP/PGL commands. These command standards are described in the

following sections. Familiarize yourself with the meaning and use of these

standards before operating the IGP/PGL.

Special Function Control Code (SFCC)

The SFCC identifies a command directed to the IGP/PGL to enable a specific

IGP/PGL function. Based on the host computer interface requirements,

various characters can be selected as the SFCC, such as the caret (^) or a

tilde (~).

It is appropriate to place the SFCC command at the beginning of a new line. If

the SFCC command is placed anywhere else on the line, at the user’s

discretion, the data preceding the command will either print or be ignored,

depending on how the Skip Command Prefix parameter is set.

The examples in this manual use the tilde as the SFCC; always substitute the

actual SFCC required by your system where the tilde is shown. In the general

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

Semicolon (;)

Each parameter (alpha data, options, etc) on the command line is separated

by a semicolon. Blank spaces between the semicolon and the next parameter

are not allowed. A missing or misplaced semicolon causes an error message.

Uppercase

The IGP/PGL is “case sensitive.” ALL commands must be entered in

uppercase.

Inline Commands

The SFCC, usually a tilde, is suggested to be the first character on a new line.

It may appear anywhere on the command line. There is a configuration option

that determines whether any data preceding a command is printed or is

ignored.