Overview
The Allen-Bradley 42SRP-6032 photoswitch is a compact, infrared-based diffuse sensor from the Series 6000 line. Designed for sharp cutoff diffuse detection, this sensor provides reliable object presence sensing in industrial automation, motion control, and manufacturing environments. The 42SRP-6032 operates at 10-30V DC and delivers NPN/PNP dual output capability for flexible integration into existing control systems.
Key Features
- Sharp Cutoff Diffuse sensing for reduced false triggering and background interference
- Dual output configuration (NPN/PNP) allows use in both sinking and sourcing circuits
- 1ms response time for fast object detection and real-time control feedback
- Infrared 880 nm LED light source for consistent, reliable operation across varying ambient light conditions
- 4-pin Micro QD connector for quick, standard field connections
- Compact form factor suitable for space-constrained mounting locations
Technical Specifications
- Sensing Mode: Sharp Cutoff Diffuse
- Light Source: Infrared 880 nm LED
- Operating Voltage: 10-30 VDC
- Output Current: 35 mA
- Sensing Distance: 5–76 mm (0.2–3.0 inches)
- Response Time: 1 ms
- Output Configuration: NPN/PNP (dual-mode)
- Operating Mode: Light Operate
- Connector Type: 4-pin Micro QD
- Cable Length: 3 meters (standard); 20 meters (Model 42SRP-6032-20)
- Series: Allen-Bradley PHOTOSWITCH Series 6000
- Status: Discontinued by manufacturer; available as surplus/new stock
Typical Applications
- Object presence detection on conveyor systems and assembly lines
- Package detection and sorting applications
- Part counting and positioning in manufacturing processes
- Machine guarding and safety interlock systems
- Quality assurance and inspection stations
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC systems via standard 24V DC input modules
- Siemens S7-1200 and S7-1500 with appropriate 24V analog input cards
- Mitsubishi FX-series and iQ-R controllers with diffuse sensor input handling
- Omron CJ, CP, and NX-series controllers with photoelectric sensor I/O modules
- Any automation system with standard 10-30V DC power and digital input capability
- EtherNet/IP and PROFINET gateways (with external protocol converters)
Replaces / Drop-In Replacement For
- 42SRP-6032 (original model)
- Allen-Bradley legacy diffuse sensors requiring similar 76mm sensing distance and dual NPN/PNP output
Works With
- Studio 5000 Logix Designer (PLC programming for input signal capture)
- TIA Portal (Siemens PLC configuration)
- GX Works 2/3 (Mitsubishi industrial automation software)
- Omron CX-One engineering suite
- Standard 24V DC power supplies and distributed I/O modules
- Industrial 24V DC control relay modules and solid-state switches
