Rockwell Automation 2755 StrataSet Programming Software User Manual

Page 20

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2–9

Configuring your Reader

Publication 2755-6.14

Miscellaneous Type

Description

1, 2, 4 and 8 Compare Buffers

The option selected here determines how many bar
codes are buffered in reference to same symbol
comparisons. This value should always be equal to or
greater than the number of different bar codes you
expect to scan on each package to avoid the potential
of double reads.

Scan Count

When this option is enabled, the reader enters scan
count test mode. Do not enable this feature unless
instructed to do so by a Rockwell Automation
representative.

Reverse LED convention

Normal LED convention calls for the red LED to
signify power/ready to scan and the green LED for
transmit indicator. When this option is enabled, the
functions of the two LED’s are switched.

Support multiple beep ‘B’/
razz ‘Z’ commands

When this option is enabled, the reader recognizes a
multiple beep/razz command from the host. The
command is a number, from 1 to 9, followed by an

ASCII

B’ or an ASCII ‘Z’.

Support host BEL/CANCEL
commands

When this option is enabled, the reader beeps when it
receives a BEL (07H) command from the host. If
ACK/NAK is enabled, a BEL command causes the
reader to beep 3 times, if sent first after a bar code is
transmitted. Or it will cause the reader to beep once if
ACK/NAK is not enabled. If a CAN (18H) command is
sent from the host, the reader exits out of its
communication loop without a beep and clears all
buffers.

Enter program mode only after
power-up

Normally, you may enter Program Mode at any time.
When this option is enabled, you are restricted to
entering Program Mode, between initial power–up and
before your first scan only. If you select this option
and need to modify the reader parameters after
several scans, merely power–down and power–up the
reader again. Then enter into Program Mode before
scanning again.

Enable status reporting

When this option is enabled, the host can initiate a
status report download from the reader with a CTRL P
command (10H). Status information includes motor
status, laser status, decode board status, scan counts
per field since last power-up, slave status and
non-volatile memory status.

Number of good scans required
(1–8)

This number, from 1 to 8, is a redundancy counter
which refers to the number of times the reader must
scan a bar code, before it considers it a good scan
and transmits the bar code. The default of 1 is usually
fine for most symbologies. Values greater than 1 may
be needed when data integrity is most critical. Note
that as the number of good scans required is
increased, aggressiveness will decrease.

Table continued on the next page.

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