Communications Menu - Allen-Bradley 2755-LS7-SB User Manual

Communications Menu

The Communications menu allows you to set the communication
protocols between the reader and the host device.
Note: Changes in communications parameters or assigning an
address to the reader can cause loss of communications with the
configuration terminal when you exit the menu program (whether or
not changes are saved for power-on).
The Communications menu is shown below. Default settings are in
bold type face.
Communications
Host Protocol
Protocol
Point-to-Point
–
Point-to-Point
–
w/RTS/CTS
Point-to-Point
–
w/XON/XOFF
Point-to-Point
–
w/RTS/CTS & XON/XOFF
Polling Mode D
–
Multidrop
–
Address = 1
–
User Definable
–
User Defined
–
RES
–
Address = ^A
–
User Defined Multidrop
–
RES
–
Address = ^A
–
LRC
Disabled
–
Enabled
–
Host Port
Baud Rate
Parity
9600 600
– –
–
19.2K 1200
– –
–
38.4K 2400
– –
–
76.8K 4800
– –
300
–
Aux Port
Mode
Baud Rate
Disabled
–
9600
–
Transparent
– 19.2K
–
Half-duplex
– 38.4K
–
Full-duplex
– 76.8K
–
Slave Mode
– 300
–
The auxiliary port is available through the interface box (Catalog Nos. 2755-LS7-IB2 or -IB2).
Configuring Your Reader
Preamble Preamble
^M Disabled
– –
User Enabled
– –
Definable
(ASCII char.)
– Req – STX – ACK
– EOT – ETX – NAK
– Req – STX – ACK
– EOT – ETX – NAK
Interchar Delay
Response Timeout
12 ms –
–
User Definable –
–
(0 to 65,000)
Stop Bits
Data Bits
One
Even
– –
Two
Odd
– –
None
Parity
600 Even
– –
1200 Odd
– –
2400 None
– –
4800
–
5–5
Postamble Postamble
^M ^J Enabled
– –
User Definable Disabled
– –
(ASCII char.)
0
User Definable (0 to 255)
Seven
Eight
Stop Bits Data Bits
One Seven
– –
Two
Eight
– –
Publication 2755-6.9