Rockwell Automation 2755 Atomscan Bar Code Scanner - Manual (Page 11)

Chapter 2
AtomScan Product Family
2–5
A Package Detector is used to sense when a package containing a bar code
symbol is in position to have that symbol scanned and decoded.
Allen-Bradley Photoswitch
R retro-reflective photoswitches, Series 6000 or
Series 9000 with the QD (Quick Disconnect) option are recommended. The
QD option provides a Micro-Change connector compatible with the
connector on the Adapter Module (2755-NC18). You must order a sinking
type sensor that can operate from a 12V DC supply with the -QD suffix
added to the catalog number.
Select a Package Detect sensor that operates on 12 V DC and is a sinking
type sensor. Acceptable sensors are:
Catalog Number 42SRU-6203-QD
Catalog Number 42GRU-9200-QD
Be sure to obtain a reflector suitable to the application.
An extension cable may be needed to connect the sensor. The following table
includes cables available from sources other than Allen-Bradley.
Table 2.A
Cables for Package Detectors
Length
Brad Harrison
Part Number
Crouse-Hinds
Part Number
Allen-Bradley
Catalog Number
2 Meter (6.5 feet) 81428-003 5000118-40 -
3 Meter (9.8 feet) - 5000118-41 -
4 Meter (13.1 feet) 81428-005 5000118-42 2755-CP13
5 Meter (16.4 feet) 81428-004 5000118-43 -
Various mounting brackets for the sensors are available from Allen-Bradley
Photoswitch.
Figure 2.5
A Possible Setup for a Scanning System
Monitor
(Optional)
Host
Package
Sensor
Adapter
Decoder
Reflector
Scanner
Cable
Extension
Cable
(if needed)
Atom
Scan
Package Detectors
The Scanning System