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

➀

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

➀

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

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