Rockwell Automation 2755 AtomScan Bar Code Reader - Manual (Page 89)

6–4 Hardware Operation
Publication 2755-6.9
Device Control Commands
•
Enable Laser Scanning (Laser On), [<H>] .
•
Disable Laser Scanning (Laser Off), [<I>] . This feature is useful
during extended periods of time when no bar code labels are
being scanned. Disabling laser scanning will not affect any
downloaded commands to the reader.
•
Motor On, [<KE> ]. Turns the motor on (reaches full speed after a
short time delay).
•
Motor Off, [<KF>] . Turns the motor off.
•
Relay-1 Pulse, [<L1>] . Allows you to send a pulse to pin 7 (at
any time regardless of Match Code or Relay-1 Driver status).
•
Relay-2 Pulse, [<L2>] . Allows you to send a pulse to pin 14 (at
any time regardless of Match Code or Relay-2 Driver status).
Code Types Commands
•
Autodiscriminate All Codes, [<P>] . Enables the reader to decode
all available bar code types without changing reader
configuration settings.
Note: For maximum scanning speed, enable only those bar code
symbologies used in the application.
•
Enable Code 39 Only, [<Q>] . Allows only Code 39 labels to be
read.
•
Enable Codabar Only, [<R>] . Allows only Codabar labels to be
read.
•
Enable I 2 of 5 Only, [<S>] . Allows only Interleaved 2 of 5
labels to be read.
Counter Commands
The Xs in all counter commands that follow denote a numeric value
from 00000 to 65,535. After reaching the maximum numeric limit
of 65,535, you will receive an error message and the counter will
automatically rollover and start counting again at 00000. To obtain
the cumulative total of counts after the rollover has occurred, add
65,536 per each rollover (the reader does not keep track of the
number of rollovers) to the current count.
Note: You will lose all counter values if you cycle power to the
reader, press
[<A>] , or enter the Menu Configuration Program.