Specifications

Remote Diagnostics and Debugging
Descriptions of Diagnostic and Debugging Commands 123
Command Packet Received by Terminal:
<FFh> <55h> <count> N <CRC1> <CRC2>
Response Packet Sent by Terminal:
<FFh> <55h> <count> N <CRC1> <CRC2>
P — Read from Device
The P command reads data from the device specified in the device
parameter.
The <device> parameter is a one-byte value identifying the device to
read from. Use the device codes found in the table below.
The terminal sends the device code back to the computer including
the data it receives from the device. The <data> returned is a counted
string. Device codes and descriptions are listed below.
Device Code
Name Description
00 STDIN 16-key console keypad
02 STDOUT 16-character console display panel
06 CLOCK Real-time clock/calendar
10 COM1 External RS-232 asynchronous
communications link (RS232 port)
12 COM2 Integrated thermal printer
16 MODEM Internal modem
24 CARD Magnetic card reader
26 BAR Bar code reader
(Bar code/PIN pad port
28 PINPAD PIN entry device
(Bar code/PIN pad port)
O3200 RM Book.book Page 123 Thursday, April 29, 1999 3:48 PM