Intermec CK30

Customizing Your Configuration—Chapter 5
233TE 2000
 5250 Terminal Emulation Programmer’s Guide
Preinitializing the 5250 TE Program
You can preinitialize the 5250TE program. You must name the 5250 init-
ialization f ile as 5250.INI. The file is processed when you reset or warm
start the terminal. The file is processed as if the radio had received the
data, and must be in the “on-air” format. For instructions on how to
download the file, see “Downloading Files” on page 251.
Data is encoded in binary format. To create 5250.INI, you may need a
HEXeditororotherspecialprogram.
5250 initialization f i les are composed of the following:
S A prefix of 0 to 255 bytes
S The body of the message, which may be empty or may contain either
LU-LU or SS-LU data
Prefix bytes are described as follows:
S The first byte of any 5250 data stream prefix contains the length of the
prefix. This length may be 0 to indicate that there is no prefix informa-
tion in the message.
S The second byte of the prefix is a value indicating the session to which
the body of the message belongs. It can be either 0xC0 for the LU-LU
session (normal 5250 commands), or 0x40 for the SS-LU session (SS
messages).
If no prefix is processed, the default session is LU-LU. Once a prefix has
been received with a v alid session identifier, that session becomes the de-
fault until another is r eceived. After the session identifier, the prefix may
contain a 5250 signal. The following signals are supported:
0xC9 0x00 0x00 0x00 0x01 Turns on the message waiting indicator
0xC9 0x00 0x00 0x00 0x05 Turns off the message waiting indicator
The body of the message can contain either an SS message, if the current
session is SS-LU, or normal 5250 data stream commands if the curre nt
session is LU-LU. All data within the message body is encoded as EBC-
DIC. An SS message contains displayable data that is displayed on the
5250 error row in SS message state.
The following example shows how to display “HELLO WORLD” and
beep the beeper from within a data stream initialization f ile. The line of
hexadecimal digits represent the binary values that must be stored in the
initialization files.
01 c0 04 40 04 11 40 04 c8 c5 d3 d3 d6 40 e6 d6 d9 d3 c4
Write display command with alarm bit set in command control byte
Clear unit command
LU-LU session identifier in prefix
Prefix length
HELLO WORLD