Communications menu, 5–5 configuring your reader, Communications – Rockwell Automation 2755 AtomScan Bar Code Reader User Manual

Page 50

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5–5

Configuring Your Reader

Publication 2755-6.9

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.

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

– Req

– STX

– ACK

Address = ^A

– EOT

– ETX

– NAK

User Defined Multidrop

RES

– Req

– STX

– ACK

Address = ^A

– EOT

– ETX

– NAK

Preamble

^M

User
Definable
(ASCII char.)

Preamble

Disabled

Enabled

Postamble

^M ^J

User Definable
(ASCII char.)

Postamble

Enabled

Disabled

Host Protocol

LRC

Disabled

Enabled

Response Timeout

12 ms

User Definable
(0 to 65,000)

Interchar Delay

0

User Definable (0 to 255)

Baud Rate

9600

600

19.2K

1200

38.4K

2400

76.8K

4800

300

Parity

Even

Odd

None

Stop Bits

One

Two

Data Bits

Seven

Eight

Communications

Host Port

Aux Port

Baud Rate

9600

600

19.2K

1200

38.4K

2400

76.8K

4800

300

Parity

Even

Odd

None

Stop Bits

One

Two

Data Bits

Seven

Eight

Mode

Disabled

Transparent

Half-duplex

Full-duplex

Slave Mode

The auxiliary port is available through the interface box (Catalog Nos. 2755-LS7-IB2 or -IB2).

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