Xerox 3270 manual

3270 Programmer’s Guide Function Selection via the Line 2. Function Selection via the Line Function Selection via the Line (FSL) sequences are special commands used for the downloading of settings to the 3270 Protocol Converter . The syntax of an FSL command is shown below. "%" is the defined escape character (i.e. ESC character). See the section on "Escape Character" in the following. %Y<Function number>, <parameter>% Syntax of an FSL command When you send the FSL syntax to the converter via the line, the "Y" and the following number will select an FSL Function. All spaces and IBM control codes between the leading and the trailing ESC characters will be ignored. The FSL Functions are used for setting up the printer to special applications, to carry out a special print job, or to gain access to special facilities in the printer. A complete description of the supported FSL Functions for the printer drivers FSL , PCL and XES are found in documents no. D62071, D62030 and D62067 respectively. The Function numbers and parameters are listed as data options along with a description of the results of selecting each option. The parameters set the selected Function as required. 2.1. Escape Character If you wish to program the converter, you must first define an "ESC character " 1. An ESC character is a signal to the converter that the characters following the ESC character form a command sequence. 1 In this manual, the ESC character is synonymous with the defined escape character. Do not confuse it with the ASCII escape control code (1B HEX). - 10 -