TransCore 05531 Manual De Usuario
7-3
Chapter 7
Commands
This chapter discusses the host-transmitted commands that are used to
control the Encompass
control the Encompass
TM
4/4800 Multiprotocol Reader configuration and
operation.
Introduction
The Encompass 4/4800 Multiprotocol Reader is delivered from the factory with spec-
ified default settings that determine how the reader operates. Commands transmitted
by the host computer can change the default settings and control additional features.
The commands can be transmitted by manually entering the commands at the host
keyboard if the host is in terminal emulation mode. The Encompass 4/4800 Multipro-
tocol Reader can also communicate with ASCII terminals.
ified default settings that determine how the reader operates. Commands transmitted
by the host computer can change the default settings and control additional features.
The commands can be transmitted by manually entering the commands at the host
keyboard if the host is in terminal emulation mode. The Encompass 4/4800 Multipro-
tocol Reader can also communicate with ASCII terminals.
Note: If you are using Wiegand mode, you must connect the PC or laptop to the
Encompass 4/4800 Multiprotocol Reader using the RS
Encompass 4/4800 Multiprotocol Reader using the RS
–
232 or RS
–
422 interface and a
terminal emulation program to send commands to the reader. You can leave the Wie-
gand interface connected during this procedure.
gand interface connected during this procedure.
Operating Modes
The Encompass 4/4800 Multiprotocol Reader has three modes of operation: data
mode, command mode, and download mode. The software for the Encompass 4/4800
Multiprotocol Reader contains two separate programs — boot and application. The
boot program has control of the Encompass 4/4800 Multiprotocol Reader on startup
and when operating in download mode. The application program has control of the
Encompass 4/4800 Multiprotocol Reader during data mode and command mode oper-
ation and holds the application code. Together, they control the Encompass 4/4800
Multiprotocol Reader in the three modes of operation.
mode, command mode, and download mode. The software for the Encompass 4/4800
Multiprotocol Reader contains two separate programs — boot and application. The
boot program has control of the Encompass 4/4800 Multiprotocol Reader on startup
and when operating in download mode. The application program has control of the
Encompass 4/4800 Multiprotocol Reader during data mode and command mode oper-
ation and holds the application code. Together, they control the Encompass 4/4800
Multiprotocol Reader in the three modes of operation.
Data Mode
The Encompass 4/4800 Multiprotocol Reader is in the data mode upon power-up.
While in the data mode, the Encompass 4/4800 Multiprotocol Reader sends all com-
munications as data messages, such as tag IDs and reports, to the host computer.
Reports provide information on input status changes (input0 and input1), a presence
without tag report, and buffer overflow information. The host computer can send only
two commands to the Encompass 4/4800 Multiprotocol Reader while in data mode:
While in the data mode, the Encompass 4/4800 Multiprotocol Reader sends all com-
munications as data messages, such as tag IDs and reports, to the host computer.
Reports provide information on input status changes (input0 and input1), a presence
without tag report, and buffer overflow information. The host computer can send only
two commands to the Encompass 4/4800 Multiprotocol Reader while in data mode: