TransCore 0596465PT15 Manuel D’Utilisation

While in download mode, the Encompass 4H Reader turns RF off, does not process 
tags, and does not echo host commands.

Reader commands are divided into groups based on primary function. The following 
sections provide information about each command in command number order. Refer 
to Appendix 

 for listings of commands in numerical and alphabetical order.

In the following text, the symbols < and > represent variable message data. These 
symbols are not part of the message syntax.

Hex digits (0–9, A–F) in either uppercase or lowercase characters may be used in data 
strings and for hex digits A–F.

Group 0 commands control reader mode. The mode determines whether the reader is 
transmitting data to or receiving data from a host computer or terminal.

Command #00 switches the reader to data mode, which allows the reader to transmit 
tag data (ID codes) to the host. In addition to switching the reader to data mode, com-
mand #00 automatically saves to non-volatile memory (NVRAM) any user parame-
ters that had been changed during the command mode session. The reader enters data 
mode on power up.

While operating in data mode, the reader accepts the following commands: 

Command #01 Switch to Command Mode 

Reader response:

Done

Command #01 switches the reader to command mode, which allows the reader to 
accept commands from a host or terminal. While in command mode, the reader turns 
RF off and does not acquire tags.

Reader response:

Done