Rev 7.21
3
1.0 Smart antennas and the 8050E
The Smart antenna is a fully functional RFID reader writer enclosed in what previously constituted
an antenna enclosure. This eliminates the need for antenna cables and the tuning associated
with them. Another advantage is the ability to communicate with several antennas trough a single
interface box.
1.1 Hardware
Communications: CAN (controller area network) at 125 KBS
Power: +24VDC linear regulated 200mA max
Interconnections: 5 pin M12 male
1.2 ASCII Data
All tags store 16 ASCII characters (limited to capital letters, numbers and some symbols)
The Smart Antenna can read and write tags
2.0 8050E Serial Port
2.1 Hardware and dipswitches
The serial port can be configured to operate as:
RS232 full duplex, RS422 full duplex (5 wire), RS422 half duplex (3 wire)
Switch 7
Switch 8 (MSB)
Serial hardware type
OFF
OFF
RS232 full duplex
ON
OFF
RS422 half duplex
OFF
ON
RS422 full duplex
Table 3 SW2 and Serial Port hardware select
Switch 4
Switch 5
Switch 6
Serial Baud Rate
OFF
OFF
OFF
1200
ON
OFF
OFF
2400
OFF
ON
OFF
4800
ON
ON
OFF
9600
OFF
OFF
ON
19200
ON
OFF
ON
38400
OFF
ON
ON
Do not use
ON
ON
ON
Do not use
Table 4 SW2 and Bit Rate selection
2.2 Start and End characters
The serial port software frames data from RFID readers based on its End and Start character
settings. Start may be set to zero in whish case any character is accepted as a start character.
End must be set to a value other than zero to delimit incoming tag data.
The default settings are:
Start = 0x00
End = 0x0D (Carriage return)
2.3 Command characters [ and ]
These characters are used to frame an incoming command message. When the serial port
software receives the [ character it expects the rest of the message to be a command and the last
character to be ]
