Rockwell Automation 2755 AtomScan Bar Code Reader - Manual (Page 99)

6–14 Hardware Operation
Publication 2755-6.9
Defaulting the Reader
Defaulting the reader resets all reader configuration parameters
except Gain Adjustment to their original default values. The value
for Gain Adjustment is saved to NOVRAM for power-on by pressing
[<Zp>] (Save SPS/Gain for Power-on).
Note: The reader can also be defaulted using various methods with
the interface box, if used. Refer to page 6–15 for more information
regarding faulting the reader via the interface box.
Defaulting is necessary if:
•
You wish to quickly restore default settings to the configuration
program after making some temporary changes.
•
Communications between the reader and another device are
interrupted because of incompatible settings (for example, a
terminal is set to communicate at 9600 baud, but the reader is
configured at 38.4K baud).
•
The reader has been assigned a polling address and you wish to
access the reader’s menu.
Note: Power must be available to the reader during all default
procedures.
Software Default
The software default is done by pressing [<Zd>] (Restore/Save
Default Configuration for Power-on).
Operating the Interface Box
There are two interface boxes available for your application. The
units have:
•
RS-232 and RS-485 communication (Catalog No. 2755-LS7-IB1)
•
RS-232 and RS-422 communication (Catalog No. 2755-LS7-IB2)
RS-232 and RS-485 Communication (Catalog No. 2755-LS7-IB1)
When the Mode switch is in the out position, the RS-232 signals go
through to the 25-pin (host) connector.
Reader RS-232 RS-232 IB1 Host